[go: up one dir, main page]

EP3158607B1 - Antenne à surface à impédance artificielle, à guide d'ondes à ondes de surface, à polarisation circulaire, à couplage de polarisation - Google Patents

Antenne à surface à impédance artificielle, à guide d'ondes à ondes de surface, à polarisation circulaire, à couplage de polarisation Download PDF

Info

Publication number
EP3158607B1
EP3158607B1 EP15810252.5A EP15810252A EP3158607B1 EP 3158607 B1 EP3158607 B1 EP 3158607B1 EP 15810252 A EP15810252 A EP 15810252A EP 3158607 B1 EP3158607 B1 EP 3158607B1
Authority
EP
European Patent Office
Prior art keywords
wave
antenna
impedance
tensor
waveguide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15810252.5A
Other languages
German (de)
English (en)
Other versions
EP3158607A1 (fr
EP3158607A4 (fr
Inventor
Daniel J. Gregoire
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HRL Laboratories LLC
Original Assignee
HRL Laboratories LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US14/310,895 external-priority patent/US10312596B2/en
Application filed by HRL Laboratories LLC filed Critical HRL Laboratories LLC
Publication of EP3158607A1 publication Critical patent/EP3158607A1/fr
Publication of EP3158607A4 publication Critical patent/EP3158607A4/fr
Application granted granted Critical
Publication of EP3158607B1 publication Critical patent/EP3158607B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/206—Microstrip transmission line antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/165—Auxiliary devices for rotating the plane of polarisation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/26—Surface waveguide constituted by a single conductor, e.g. strip conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/28—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave comprising elements constituting electric discontinuities and spaced in direction of wave propagation, e.g. dielectric elements or conductive elements forming artificial dielectric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H01Q21/245—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction provided with means for varying the polarisation 
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/001—Crossed polarisation dual antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna

Definitions

  • This invention provides an antenna capable of dual-polarization, circularly-polarized simultaneous Right Hand Circular Polarization (RHCP) and Left Hand Circular Polarization (LHCP) operation.
  • RHCP Right Hand Circular Polarization
  • LHCP Left Hand Circular Polarization
  • AISAs Artificial impedance surface antennas are realized by launching a surface wave across an artificial impedance surface (AIS), whose impedance is spatially modulated across the AIS according a function that matches the phase fronts between the surface wave on the AIS and the desired far-field radiation pattern.
  • AIS artificial impedance surface
  • an artificial impedance surface antenna is formed from modulated artificial impedance surfaces (AIS).
  • AIS modulated artificial impedance surfaces
  • EP 2822096 constitutes prior art under Article 54(3) EPC and discloses an apparatus (100) comprising a plurality of radiating elements (122,123) and a plurality of surface wave feeds (130).
  • Each radiating element in the plurality of radiating elements comprises a number of surface wave channels (125) in which each of the number of surface wave channels is configured to constrain a path of a surface wave.
  • a surface wave feed in the plurality of surface wave feeds is configured to couple a surface wave channel in the number of surface wave channels of a radiating element in the plurality of radiating elements to a transmission line (156) configured to carry a radio frequency signal.
  • the proposed leaky transmission line is a planar passive circuit built using the substrate integrated waveguide technology. It consists of two symmetrical waveguide lines loaded with series interdigital capacitors which radiate orthogonal 45° linearly polarized waves. Its dispersion, Bloch impedance and radiation characteristics are extracted by applying a comprehensive analysis on the unit cell. Its backfire-to-endfire beam-steering capability through frequency scanning due to the CRLH nature is demonstrated and discussed.
  • LW structure shows some desirable merits, such as the simplicity in design, low-cost fabrication, and beam-steering and polarization-flexible capabilities, providing a high degree of flexibility for the real application.
  • the basic principle of AISA operation is to use the grid momentum of the modulated AIS to match the wavevector of an excited surface-wave front to a desired plane wave.
  • Eqn. 2 and Eqn. 3 can be replaced with any periodic function and the AISA will still operate as designed, but the details of the side lobes, bandwidth and beam squint will be affected.
  • the AIS can be realized as a grid of metallic patches disposed on a grounded dielectric that produces the desired index modulation by varying the size of the patches according to a function that correlates the patch size to the surface wave index.
  • the correlation between index and patch size can be determined using simulations, calculation and/or measurement techniques. For example, Colburn and Fong (see references cited above) use a combination of HFSS unit-cell eigenvalue simulations and near field measurements of test boards to determine their correlation function.
  • Fast approximate methods presented by Luukkonen see, for example, O. Luukkonen et al, "Simple and accurate analytical model of planar grids and high-impedance surfaces comprising metal strips or patches", IEEE Trans. Antennas Prop., vol.
  • An AIS antenna can be made to operate with circularly-polarized (CP) radiation by using an impedance surface whose impedance properties are anisotropic.
  • the impedance is described at every point on the AIS by a tensor.
  • the tensor impedance is realized with anisotropic metallic patches on a grounded dielectric substrate.
  • the patches are squares of various sizes with a slice through the center of them.
  • the desired tensor impedance of equation Eqn. 5 can be created across the entire AIS.
  • Other types of tensor impedance elements besides the "sliced patch" can be used to create the tensor AIS.
  • a variation on the AIS antennas utilizes surface-wave waveguides to confine the surface waves along narrow paths that form one-dimensional ES AISAs.
  • Surface-wave waveguides are surface structures that constrain surface-waves (SW) to propagate along a confined path (see, for example, D. J. Gregoire and A. V. Kabakian, "Surface-Wave Waveguides," Antennas and Wireless Propagation Letters, IEEE, 10, 2011, pp. 1512-1515 ).
  • the structure interacts with surface waves in the same way that a fiber-optic transmission line interacts with light.
  • the wave preferentially propagates in a region of high refractive index surrounded by a region of low refractive index.
  • the high- and low-index regions are realized with high and low-permittivity materials.
  • the high- and low-index regions can be realized with metallic patches of varying size and/or shape on a dielectric substrate.
  • the surface-wave fields across the width of the SWG are fairly uniform when the width of the SWG is less than approximately 3 ⁇ 4 surface-wave wavelength. So, this is a good rule of thumb for the SWG.
  • the impedance of the SWG varies according to equation Eqn. 2.
  • the impedance elements can be square patches of metal on the substrate or they can be strips that span the width of the SWG.
  • the desired impedance modulation is created by varying the size of the impedance element dimensions with position.
  • the impedance elements can be the sliced patches as described by B. Fong et al. (see the B. Fong et al. article referenced above).
  • the impedance element dimensions are varied with position to achieve the desired impedance variation.
  • the present invention provides a dual-polarization, circularly-polarized artificial-impedance-surface antenna comprising: (1) two adjacent tensor surface-wave waveguides (SWGs); (2) a waveguide feed coupled to each of the two SWGs; (3) a hybrid coupler (which is preferably a 90° coupler) having output ports, each output port of the hybrid coupler being connected to the waveguide feeds coupled to the two SWGs, the hybrid coupler being configured to combine the signals from first and second input ports of the hybrid coupler with phase shifts at its output ports, such that a first signal connected to the first input port is transmitted or received with RHCP polarization while a second signal connected to the second input port simultaneously is transmitted or received with LHCP polarization and front-end electronics arranged for transmitting or receiving said first and second signals; the first signal being independent from the second signal, characterized in that the first and second tensor surface-wave waveguides include a dielectric sheet substrate having a ground plane on a bottom surface thereof and the first and second
  • the present invention provides a method of simultaneously transmitting two oppositely handed circularly polarized RF signals comprising the steps of: (i) providing a dielectric surface with a ground plane on one side there of and with a pair of elongate artificial impedance surface antennas, each of said artificial impedance surface antennas including a pattern of metallic geometric stripes or shapes disposed on said dielectric surface, the metallic geometric stripes or shapes having varying sizes which form a repeating moire pattern, the moire patterns of the each of said pair of elongate artificial impedance surface antennas having a angular relationship with reference to a major axis of said pair of elongate artificial impedance surface antennas, a first one of said pair of elongate artificial impedance surface antennas having a positive angular relationship to said major axis and second one of said pair of elongate artificial impedance surface antennas having a negative angular relationship to said major axis; and (ii)applying RF energy to said pair of elongated microwave
  • the present invention provides a method of simultaneously receiving two oppositely handed circularly polarized RF signals comprising the steps of: (i) sending the signals received by two SWGs into two input ports of a 3dB 90 degree hybrid coupler, the coupler also having two output ports; and (ii) extracting LHCP and RHCP signals from the output two ports of the hybrid coupler.
  • This invention provides a solution for a dual-polarization, circularly-polarized AISA with simultaneous Right Hand Circular Polarization (RHCP) and Left Hand Circular Polarization (LHCP) operation.
  • RHCP Right Hand Circular Polarization
  • LHCP Left Hand Circular Polarization
  • one possible embodiment of the invention includes a pair of linearly-polarized SWGs 101 and 102 to form the AISA.
  • the polarization of the two SWGs 101, 102 is preferably rotated by 90° with respect to each other.
  • the SWGs 101, 102 are connected to ports C and D of a 3-dB 90° hybrid coupler 103, the operation of which is well understood in the state of the art (see, for example, www.microwaves101.com/encyclopedia/ hybridcouplers.cfm).
  • the signals at ports C and D are the sum of the signals at ports A and B with preferably either a 90° or a -90° phase shift between them, respectively.
  • the combination of the radiation from the two SWGs 101, 102 with the 90° rotation in polarization and the 90° separation in phase results in circularly polarized radiation. It is well known that circularly polarized radiation can be created by combining radiation from two antennas with orthogonal polarization with a 90° phase shift between them.
  • the signal connected to port A is transmitted or received with RHCP polarization while the signal connected to port B simultaneously is transmitted or received with LHCP polarization.
  • Transmit-Receive (TR) switches 104 enable independent operation of each polarization in transmit or receive modes depending on the positions of switches 104.
  • the two channels are processed in receive mode by conventional front-end electronics 105 and the two channels are provided in transmit mode with transmit signals again by conventional front-end electronics 105.
  • the conventional front-end electronics 105 may be embodied in or by a transceiver with dual inputs (R1 and R2) and dual outputs (T1 and T2) or in or by separate transmitters and receivers or in or by a RF transmit/receive module.
  • Each of the SWGs 101, 102 is a linear array of tensor impedance elements 106 that radiate with a polarization preferably at a ⁇ 45° angle to the polarization of the SW electric field (in the x axis labeled in Fig. 1 , the x axis also being the major axis or axis of common elongation of the two SWGs 101, 102).
  • the tensor elements 106 are preferably metallic shapes printed or otherwise formed on the top surface of a dielectric substrate 109 which preferably has a ground plane 111 disposed the opposing (underside) surface of the dielectric substrate 109.
  • the metallic shapes can be stripes as shown in Figs.
  • a ground potential associated with front-end electronics 105 is coupled with the ground plane 111 on bottom side of the dielectric substrate 109.
  • the SWGs 101, 102 should preferably be spaced apart a sufficient distance so that the fields adjacent the SWGs do not couple with each other. In practice the separation distance between SWGs 101, 102 is preferably at least 1 ⁇ 4 ⁇ .
  • the SWGs 101, 102 include metallic strips or patches disposed in an elongated array on a top surface of a dielectric sheet, the dielectric sheet having a ground plane on a bottom surface thereof.
  • the tensor impedance elements 106 can be provided by metallic stripes disposed on a top side of the dielectric substrate 109 where the tensor impedance elements 106 in one channel are angled preferably at +45° with respect to the x axis, and the tilt angle of the stripes in the other channel is set to -45° with respect to that same axis.
  • This variation in tilt angle produces radiation of different linear polarization, that when combined with a 90° phase shift via the 90° hybrid 103, produces circularly polarized radiation in transmit mode or allow reception of circularly polarized radiation in receive mode.
  • the impedance elements could also be square patches with slices through them as described in B. Fong et al; , “Scalar and Tensor Holographic Artificial Impedance Surfaces ", noted above. Such an embodiment is depicted by Fig. 3 .
  • the dielectric substrate 109 may preferably be made from Printed Circuit Board (PCB) material which has a metallic conductor (such as copper) disposed preferably on both of its major surfaces, the metallic conductor on the top or upper surface being patterned using conventional PCB fabrication techniques to define the aforementioned tensor impedance elements 106 from the metallic conductor originally formed on the upper surface of the PCB.
  • PCB Printed Circuit Board
  • the metallic conductor formed on the lower surface of the PCB would then become the ground plane.
  • the front-end electronics 105 sends two independent signals from its transmit channels (T1 and T2) to the transmit connections of the two TR switches 104.
  • the signals from ports C and D of the 90° hybrid coupler 103 pass through optional coaxial cables 110 to end launch Printed Circuit Board (PCB) connectors 107 which are connected to surface-wave (SW) feeds 108.
  • the coaxial cables 110 and connectors 107 may be omitted if coupler 103 is connected directly the SW feeds 108, for example. If coaxial cables 110 are utilized, then their respective center conductors are connected to the SW feeds 108 while their shielding conductor are connected to the ground plane 111.
  • a link between the two can alternatively be provided by rectangular waveguides, microstrips, coplanar waveguides (CPWs), etc.
  • the SW feeds 108 preferably have a 50 ⁇ impedance at the end that connects to coupler 103 via the end-launch connector 107 (if utilized).
  • the SW feed 108 flares from one end, preferably in an exponential curve, until its width matches the width of the SWGs 101, 102.
  • the SW feeds 108 launch surface waves with a uniform field across their wide ends into the SWGs 101, 102.
  • the SW feeds 108 are preferably formed using the same techniques to form the tensor impedance elements 106 (this is, by forming them from them the metallic conductor found on a typical PCB).
  • the widths of the SWGs 101, 102 is preferably between 1/8 to 2 wavelengths of an operational frequency (or frequencies) of the SWGs 102, 102.
  • the SWGs 101, 102 are preferably composed of a series of metallic tensor impedance elements 106 whose sides are preferably angled at 45° or having angled slices as in the embodiment of Fig. 3 with respect to the SWG axis (the x-axis in Fig. 1 ) as noted above.
  • the slices are angled at ⁇ 45° with respect to the major axis of the SWGs 101, 102 axis so that the impedance tensor's principal axis is aligned with the slice.
  • series of metallic tensor impedance elements 106 with angled slices or sides could be angled at some other angle than ⁇ 45° with respect to the SWG axis (the x-axis in Fig.
  • the hybrid coupler 103 has to have a phase shift that is different from 90 degrees at its outputs.
  • Such a hybrid coupler 103 is not believed to be commercially available, so it would be a custom designed coupler, but such a coupler could designed and made if desired. So the angles of ⁇ 45° with respect to the SWG axis (the x-axis in Fig. 1 ) set for the angles of the metallic tensor impedance elements 106 (or the angles of the slices or sides of the as in the embodiment of Fig. 3 ) is preferred as those angles are believed to be compatible with commercially available hybrid couplers for element 103.
  • the widths of the individual metallic tensor impedance elements 106 are typically much narrower than the widths of the SWGs 101, 102 which they form. In Fig. 1 the widths of the individual metallic tensor impedance elements 106 averages about 1/7th of the width of the SWGs 101, 102. Typically, the individual metallic tensor impedance elements 106 will be spaced by 1/20 to 1/5 of a wavelength apart from each other along the length of the SWGs 101, 102. The width of the individual metallic tensor impedance elements 106 determines the SW propagation impedance locally along the SWG.
  • the width of the tensor impedance elements 106 varies with distance along the SWG such that the SW impedance is modulated according to equation (Eqn. 2), in order to have the radiation pattern directed at an angle ⁇ determined by equation (Eqn. 3) with respect to the z axis in the x-z plane noted on Fig. 1 .
  • This variation in the widths of the tensor impedance elements 106 can be seen in Fig. 1 as a noticeable moire pattern caused by the changing widths of the tensor impedance elements 106. This pattern repeats itself continuously along the length of the SWG, no matter how long the SWG is.
  • the length of the SWG 101, 102 will depend on a number of factors related to the antenna's engineering parameters, such as desired radiation beam width, gain, instantaneous bandwidth, aperture efficiency, etc. Typically the length of the SWGs 101, 102 will fall in the range of 2 to 30 wavelengths at the operational frequency of the SWGs 101, 102.
  • the metallic tensor impedance elements 106 in SWG 101 are angled in a direction opposite to the tensor impedance elements 106 in the other SWG 102.
  • the radiation from the two SWGs will be polarized in the direction across the gaps between the strips. Therefore, the radiation from the two SWGs 101, 102 depicted by Fig. 1 will be orthogonal to each other.
  • the 90° phase shift difference is applied to the feeds 108 with the hybrid power splitter 103, the net radiation from the combination of the two SWGs 101, 102 is circularly polarized.
  • other angles (then 45°) for the metallic tensor impedance elements 106 relative to the x-axis can be utilized if a custom designed coupler 103 is employed and still the resulting polarization will be polar.
  • each SWG 101, 102 is polarized as it is because the slanted metallic strips are tensor impedance elements 106 whose major principal axis is perpendicular to the long edge of the strips and the minor axis is along them.
  • the radiation is driven by the SW currents according to E rad ⁇ ⁇ k ⁇ ⁇ J sw ⁇ k ⁇ e ⁇ i k ⁇ r ′ dx e i k ⁇ r and is therefore polarized in the direction across the gaps between the strips.
  • Fig. 1 The preferred embodiment for a 12 GHz version of a radiating element of the invention is shown in Fig. 1 .
  • the SWGs 101 and 102 are preferably 1 ⁇ 2 ⁇ 0 wide.
  • the exponentially-tapered, surface-wave feeds 108 are preferably 2 ⁇ 0 long.
  • the period of the tensor impedance elements 106 ⁇ 1/12 ⁇ 0 .
  • Fig. 2 illustrates a preferred embodiment where an RF feed assembly 108 is also disposed at the other of the SWGs with RF terminators 201 attached to the end. This prevents the surface-wave from reflecting off the end of the AISA which could lead to unwanted distortion in the radiation pattern.
  • a dual-polarization, circularly-polarized artificial-impedance-surface antenna has two adjacent tensor surface-wave waveguides (SWGs), a waveguide feed coupled to each of the two SWGs and a hybrid coupler having output ports, each output port of the hybrid coupler being connected to the waveguide feeds coupled to the two SWGs, the hybrid coupler, in use, combining the signals from input ports of the 90° hybrid coupler with phase shifts at its output ports.
  • SWGs tensor surface-wave waveguides

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Claims (13)

  1. Antenne à surface à impédance artificielle à polarisation circulaire à double polarisation comprenant :
    (1) un premier guide d'ondes à ondes de surface de tenseur (101) adjacent à un second guide d'ondes à ondes de surface de tenseur (102) ;
    (2) une première alimentation de guide d'ondes (108) couplée au premier guide d'ondes à ondes de surface (101) et une seconde alimentation de guide d'ondes (108) couplée au second guide d'ondes à ondes de surface (102) ;
    (3) un coupleur hybride (103) ayant un premier port de sortie (C) connecté à la première alimentation de guide d'ondes (108) et un second port de sortie (D) connecté à la seconde alimentation de guide d'onde (108), le coupleur hybride étant conçu pour combiner les signaux des premier (A) et second (B) ports d'entrée du coupleur hybride (103) avec des déphasages au niveau de ses ports de sortie de sorte qu'un premier signal connecté au premier port d'entrée (A) soit émis ou reçu avec une polarisation RHCP tandis qu'un second signal connecté au second port d'entrée (B) est simultanément émis ou reçu avec une polarisation LHCP ; et
    un électronique frontal (105) conçu pour transmettre ou recevoir lesdits premier et second signaux ; le premier signal étant indépendant du second signal, caractérisé en ce que les premier et second guides d'ondes à ondes de surface de tenseur (101, 102) comprennent un substrat en feuille diélectrique (109) ayant un plan de masse (111) sur une surface inférieure de celui-ci et les premier et second guides d'ondes à ondes de surface de tenseur (101, 102) comprennent en outre des éléments d'impédance de tenseur qui comprennent des bandes (106) ou des plaques (106) métalliques disposées en un réseau allongé sur une surface supérieure du substrat en feuille diélectrique (109).
  2. Antenne selon la revendication 1, les guides d'ondes à ondes de surface (101, 102) étant disposés sur un substrat commun (109).
  3. Antenne selon la revendication 1 ou 2, des éléments d'impédance de tenseur (106) sur des guides d'ondes à ondes de surface (101, 102) disposés côte à côte étant tournés de 90° l'un par rapport à l'autre et le coupleur hybride étant un coupleur hybride à 90°.
  4. Antenne selon l'une quelconque des revendications précédentes :
    les premier et second guides d'ondes à ondes de surface (101, 102) étant allongés et ayant chacun une largeur qui est comprise entre 1/8 et 2 longueurs d'onde d'une fréquence opérationnelle des guides d'ondes à ondes de surface (101, 102) et ayant une longueur qui est comprise entre 2 et 30 longueurs d'onde de ladite fréquence opérationnelle des guides d'ondes à ondes de surface (101, 102) ; ou
    les premier et second guides d'ondes à ondes de surface (101, 102) comprenant des éléments d'impédance de tenseur (106) qui sont espacés l'un de l'autre d'une période de 1/20 à 1/5 de longueur d'onde sur la longueur des guides d'ondes à ondes de surface (101, 102).
  5. Antenne selon l'une quelconque des revendications 1 à 3, lesdites bandes métalliques (106) de chacun des guides d'ondes à ondes de surface (101, 102) étant inclinées selon un angle par rapport à une direction commune d'allongement des guides d'ondes à ondes de surface (101, 102).
  6. Antenne selon la revendication 5, lesdites bandes métalliques (106) étant disposées à un angle de 45° par rapport à ladite direction commune d'allongement des guides d'ondes à ondes de surface (101, 102).
  7. Antenne selon la revendication 6, lesdites bandes métalliques (106) dans un guide d'ondes à ondes de surface (101, 102) étant disposées à un angle de 90° par rapport auxdites bandes métalliques (106) dans l'autre guide d'ondes à ondes de surface (102, 101).
  8. Antenne selon la revendication 7, lesdites bandes métalliques (106) étant réparties sur une longueur de chaque guide d'ondes à ondes de surface (101, 102).
  9. Antenne selon l'une quelconque des revendications 1 à 3, lesdits éléments d'impédance de tenseur des guides d'ondes à ondes de surface (101, 102) étant conçus par leur forme pour produire un diagramme d'impédance modulé selon Z x = X + M cos 2 nx / p
    Figure imgb0022
     où p est la période de la modulation, X est l'impédance moyenne et M est l'amplitude de la modulation ; X, M et p peuvent être réglés de sorte que l'angle du rayonnement Θ dans le plan x-z par rapport à l'axe z est balayé selon Θ = sin − 1 n 0 − λ 0 / p
    Figure imgb0023
     où n0 est l'indice SW moyen, et λo est la longueur d'onde du rayonnement dans l'espace des arbres et no est lié à Z(x) par n 0 = 1 p ∫ 0 p 1 + Z x 2 dx ≈ 1 + X 2
    Figure imgb0024
  10. Antenne selon l'une quelconque des revendications 1 à 4 et 9, lesdites plaques des guides d'ondes à ondes de surface (101, 102) étant formées avec des tranches les traversant et lesdites tranches étant inclinées à 45° par rapport à un axe principal des guides d'ondes à ondes de surface (101, 102) de sorte à former un tenseur d'impédance ayant un axe principal de tenseur d'impédance qui est aligné avec lesdites tranches.
  11. Antenne selon la revendication 1, comprenant un commutateur d'émission-réception (104) entre chacun des premier (A) et second (B) ports d'entrée du coupleur hybride (103) et l'électronique frontale (105), l'électronique frontale (105) comprenant l'un des éléments suivants : un émetteur-récepteur à double entrée, R1 et R2 et à double sortie, T1 et T2 ;
    des émetteurs et des récepteurs séparés ; et
    un module d'émission/réception RF ; lesdits commutateurs (104) étant disposés de sorte à permettre un fonctionnement indépendant de chacune des polarisations RHCP et LHCP en mode émission ou réception en fonction des positions des commutateurs (104).
  12. Procédé de transmission simultanée d'un premier et d'un second signal RF polarisé circulairement en sens inverse en utilisant l'antenne selon l'une quelconque des revendications 1 à 10 ; le procédé comprenant l'étape consistant à :
    appliquer le premier signal RF à la première entrée du coupleur hybride (103) et appliquer le second signal RF à la seconde entrée du coupleur hybride (103).
  13. Procédé de réception simultanée d'un premier et d'un second signal RF polarisés circulairement en sens inverse en utilisant l'antenne selon l'une quelconque des revendications 1 à 10 ; le procédé comprenant les étapes consistant à : envoyer un premier signal reçu par les premier et second guides d'ondes à ondes de surface (101, 102) dans les ports de sortie du coupleur (103), et envoyer un second signal reçu par les premier et second guides d'ondes à ondes de surface (101, 102) dans les ports de sortie du coupleur (103) ; et extraire les signaux de polarisation circulaire gauche et de polarisation circulaire droite des premier et second ports d'entrée du coupleur hybride (103).
EP15810252.5A 2014-06-20 2015-06-16 Antenne à surface à impédance artificielle, à guide d'ondes à ondes de surface, à polarisation circulaire, à couplage de polarisation Active EP3158607B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/310,895 US10312596B2 (en) 2013-01-17 2014-06-20 Dual-polarization, circularly-polarized, surface-wave-waveguide, artificial-impedance-surface antenna
PCT/US2015/036104 WO2015195718A1 (fr) 2013-01-17 2015-06-16 Antenne à surface à impédance artificielle, à guide d'ondes à ondes de surface, à polarisation circulaire, à couplage de polarisation

Publications (3)

Publication Number Publication Date
EP3158607A1 EP3158607A1 (fr) 2017-04-26
EP3158607A4 EP3158607A4 (fr) 2018-02-07
EP3158607B1 true EP3158607B1 (fr) 2020-10-07

Family

ID=58348045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15810252.5A Active EP3158607B1 (fr) 2014-06-20 2015-06-16 Antenne à surface à impédance artificielle, à guide d'ondes à ondes de surface, à polarisation circulaire, à couplage de polarisation

Country Status (1)

Country Link
EP (1) EP3158607B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230184889A1 (en) * 2021-12-14 2023-06-15 Infineon Technologies Ag Receiver down-converter architecture including an hybrid coupler, a quadrature down-converter and a baseband signal linear combiner

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100207830A1 (en) * 2009-02-18 2010-08-19 Harris Corporation Planar antenna having multi-polarization capability and associated methods

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9455495B2 (en) * 2010-11-03 2016-09-27 The Boeing Company Two-dimensionally electronically-steerable artificial impedance surface antenna

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100207830A1 (en) * 2009-02-18 2010-08-19 Harris Corporation Planar antenna having multi-polarization capability and associated methods

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230184889A1 (en) * 2021-12-14 2023-06-15 Infineon Technologies Ag Receiver down-converter architecture including an hybrid coupler, a quadrature down-converter and a baseband signal linear combiner
US12158540B2 (en) * 2021-12-14 2024-12-03 Infineon Technologies Ag Architecture including a hybrid coupler, a quadrature down-converter, and a baseband signal linear combiner

Also Published As

Publication number Publication date
EP3158607A1 (fr) 2017-04-26
EP3158607A4 (fr) 2018-02-07

Similar Documents

Publication Publication Date Title
US10312596B2 (en) Dual-polarization, circularly-polarized, surface-wave-waveguide, artificial-impedance-surface antenna
Dadgarpour et al. One-and two-dimensional beam-switching antenna for millimeter-wave MIMO applications
US11581640B2 (en) Phased array antenna with metastructure for increased angular coverage
US8912973B2 (en) Anisotropic metamaterial gain-enhancing lens for antenna applications
US8264410B1 (en) Planar broadband traveling-wave beam-scan array antennas
Briqech et al. Wide-scan MSC-AFTSA array-fed grooved spherical lens antenna for millimeter-wave MIMO applications
EP2479842B1 (fr) Guide d'ondes et système mesurant les performances d'une antenne utilisant ce guide d'ondes.
JP2014143591A (ja) アレイアンテナ
Liao et al. Switchable bidirectional/unidirectional LWA array based on half-mode substrate integrated waveguide
EP3075026B1 (fr) Antenne de surface à impédance artificielle impédance scalaire à polarisation circulaire
Dogan et al. Circularly polarized Ka-band waveguide slot array with low sidelobes
EP3158607B1 (fr) Antenne à surface à impédance artificielle, à guide d'ondes à ondes de surface, à polarisation circulaire, à couplage de polarisation
Lenin et al. Evaluation of the reflected phase of a patch using waveguide simulator for reflectarray design
Aji et al. Radiation pattern validation of a THz planar bow-tie antenna at microwave domain by scaling up technique
Yildirim et al. Development of an L Band cylindrical phased array
Deepak et al. Design of miniaturized micro-strip patch antenna for low frequency mobile communication
Shabbir et al. Single layer reflectarray antenna with pie-shaped elements for X-band applications
de Souza et al. High gain circular polarization antenna for 5.8 GHz with left-handed materials
Sabet et al. Using electro-optic field mapping for design of dual-band circularly polarized active phased arrays
Quarfoth et al. Surface wave polarization converter
Shabbir et al. A single layer delay-lines based reflectarray for X-band applications
Masa‐Campos et al. Monopulse beam‐scanning planar array antenna in L band
Jasim et al. Wideband Polarizer Using Dielectric Slabs with Periodic Rings for Satellite Communications
Rennings et al. Metabeam: A high-gain pencil-beam array antenna based on corporately fed CRLH meta-lines for the 24 GHz ISM band
Mackenzie Microwave band gaps produced by varying numbers of mushroom metamaterial cells

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170106

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20180108

RIC1 Information provided on ipc code assigned before grant

Ipc: H01Q 11/02 20060101ALN20180102BHEP

Ipc: H01Q 13/26 20060101ALI20180102BHEP

Ipc: H01Q 15/00 20060101ALI20180102BHEP

Ipc: H01P 1/165 20060101ALI20180102BHEP

Ipc: H01Q 25/00 20060101ALI20180102BHEP

Ipc: H01Q 13/28 20060101ALI20180102BHEP

Ipc: H01Q 21/06 20060101ALI20180102BHEP

Ipc: H01Q 13/20 20060101ALI20180102BHEP

Ipc: H01Q 21/24 20060101ALI20180102BHEP

Ipc: H01Q 1/24 20060101AFI20180102BHEP

Ipc: H01Q 9/04 20060101ALI20180102BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20181214

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: H01Q 21/06 20060101ALI20200330BHEP

Ipc: H01Q 9/04 20060101ALI20200330BHEP

Ipc: H01Q 15/00 20060101ALI20200330BHEP

Ipc: H01Q 1/24 20060101AFI20200330BHEP

Ipc: H01Q 25/00 20060101ALI20200330BHEP

Ipc: H01Q 13/26 20060101ALI20200330BHEP

Ipc: H01Q 11/02 20060101ALN20200330BHEP

Ipc: H01P 1/165 20060101ALI20200330BHEP

Ipc: H01Q 21/24 20060101ALI20200330BHEP

Ipc: H01Q 13/20 20060101ALI20200330BHEP

Ipc: H01Q 13/28 20060101ALI20200330BHEP

RIC1 Information provided on ipc code assigned before grant

Ipc: H01Q 13/26 20060101ALI20200409BHEP

Ipc: H01Q 13/28 20060101ALI20200409BHEP

Ipc: H01P 1/165 20060101ALI20200409BHEP

Ipc: H01Q 11/02 20060101ALN20200409BHEP

Ipc: H01Q 21/24 20060101ALI20200409BHEP

Ipc: H01Q 25/00 20060101ALI20200409BHEP

Ipc: H01Q 9/04 20060101ALI20200409BHEP

Ipc: H01Q 21/06 20060101ALI20200409BHEP

Ipc: H01Q 15/00 20060101ALI20200409BHEP

Ipc: H01Q 1/24 20060101AFI20200409BHEP

Ipc: H01Q 13/20 20060101ALI20200409BHEP

INTG Intention to grant announced

Effective date: 20200429

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1322142

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201015

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602015060224

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20201007

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1322142

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210208

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210107

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210108

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210107

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210207

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602015060224

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

26N No opposition filed

Effective date: 20210708

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210616

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210616

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210630

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210616

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210616

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210207

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20150616

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20250627

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007