WO2007000520A2 - Systeme d'antenne polyvalent - Google Patents
Systeme d'antenne polyvalent Download PDFInfo
- Publication number
- WO2007000520A2 WO2007000520A2 PCT/FR2006/050409 FR2006050409W WO2007000520A2 WO 2007000520 A2 WO2007000520 A2 WO 2007000520A2 FR 2006050409 W FR2006050409 W FR 2006050409W WO 2007000520 A2 WO2007000520 A2 WO 2007000520A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- radiating elements
- radiating
- antenna system
- reception
- antenna
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/085—Flexible aerials; Whip aerials with a resilient base
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
Definitions
- the present invention relates to an antenna system for use in a wireless link, more particularly in a home environment for high speed video transmission.
- Such systems must have topologies integrating diversity.
- the present invention provides a type of antenna system that can be used in a variety of geometric configurations so that systems integrated in two devices with different geometric constraints can be identical.
- the present invention relates to an antenna system for a wireless link operating in transmit and receive mode comprising at least two radiating elements with a first radiating element operating in reception (Rx) in a first polarization direction and a second radiating element operating in transmission. (Tx) in a second polarization direction.
- the first and second radiating elements are positioned next to one another so that a first antenna system operates with a second identical antenna system, oriented parallel or at 90 ° with respect to the first antenna system.
- the radiating elements are formed on a first rigid substrate having a layer of flexible material extending beyond the portion receiving the radiating elements, the layer of flexible material having at its other end a second rigid substrate.
- Such a system can be integrated in two devices with distinct geometric constraints without having to make any changes to the actual structure of the antenna system.
- the layer of flexible material constitutes an inner layer of the rigid substrates.
- three distinct radiating elements are used, one in transmission and two in reception.
- This embodiment solves a well-known problem of wireless links in the home environment (intra- building or "indoor” links) which suffer from degradation of the propagation channel related to the multipath or multipath phenomena that are caused by the reflections of the signal on the obstacles (walls, furniture ). It is further observed that this channel can vary with time depending on the movements of people in the house for example. Fluctuations in the received signal level then take place according to the constructive or destructive combinations of the paths. For to overcome this problem, it is known to those skilled in the art to use two receiving antennas so as to integrate a spatial diversity, polarization or radiation reception.
- the radiating elements have a radiation in the plane of the first rigid substrate on which they are integrated, the radiating elements being made in printed circuit technology, for example of slot type, Vivaldi, printed dipole, printed Yagi.
- the radiating elements have a radiation in a plane perpendicular to the plane of the first rigid substrate on which they are integrated, the radiating elements being able to be produced according to a technology chosen from printed circuit, dielectric, ceramic, 3D metal technologies.
- the second antenna system when the first and second polarization directions are perpendicular, the second antenna system is oriented at 90 ° to the first antenna system.
- Such an antenna topology can be easily integrated into an equipment.
- the orthogonality of the polarization between transmission and reception is used in order to be able to match this antenna solution on equipment having different orientations (typically horizontal: Front End Box) and vertical (plasma screen).
- the connection between the two devices is most often in direct view. This means that the link is optimal if the polarization of the transmitting antenna of the first equipment is identical to that of the receiving antenna of the second equipment and vice versa.
- the radiating elements are here chosen from waveguides, micro-ribbon patches, dipoles, radiating slots, waveguides that can be made from tin-plated sheet metal. stamped or plastic molding with metal inserts and can also be square.
- Fig. 1a and 1b schematically represent a radiating device according to one embodiment of the invention in two distinct geometrical configurations.
- Fig. 2 shows two curves representing the reflection coefficient of the radiating device in the two configurations of Figures la and Ib. 3 shows two curves representing the insertion losses obtained with the radiating device in the two configurations of FIGS. 1a and 1b.
- Fig. 4a and 4b show schematically wireless links made using radiating devices according to the embodiment of Figure 1, respectively for devices comprising radiating elements with longitudinal and transverse radiation.
- Fig. 5 schematically shows a radiating device according to another embodiment of the invention.
- Fig. 6 represents the 3D and 2D radiation patterns obtained in each of the waveguides of the radiating device of FIG. 5.
- Fig. 7 is a diagram of a radiating device according to the embodiment of Figure 5 and shielded.
- Fig. 8 schematically represents a wireless link made using radiating devices according to the embodiment of FIG. 5.
- the system 10 includes three radiating elements (RxI, Rx2, Tx) integrated on a first rigid substrate 11 and a control circuit of these radiating elements integrated on a second rigid substrate 12.
- the control circuit conventionally includes microwave and baseband functions and digital functions.
- the system 10 includes a layer of flexible material 13 between the two rigid planar substrates 11 and 12.
- One or more microstrip lines 14 are integrated on this flexible portion 13 so as to make the connections between the rigid substrates 11 and 12.
- the flexible portion 13 makes it possible to modify the geometrical configuration of the device 10 by folding the flexible layer 13 while maintaining a constant position for the rigid substrate 11 on which the radiating elements are integrated.
- the rigid substrates 11 and 12 are advantageously planar and may have fastening means such as clips or grooves.
- the layers of rigid material are for example made in low cost materials such as FR4 type materials.
- the layer or layers of flexible material may be made of Kapton type material and also constitute the inner layers of the rigid substrates 11 and 12. This last feature makes it possible to avoid discontinuities of lines between the functions provided on each of the rigid substrates 11 and 12.
- Other flexible materials such as plastics such as Polyethylene Terephthalate
- PET polybutylene terephthalate
- TPE Thermoplastic Elastomer
- the use of the flexible material provides great flexibility in the use and placement of the antenna system 10 by maintaining the polarization directions that are suitable for a given wireless link.
- the operation obtained in the two configurations proposed in FIG. 1 was simulated using the 3D electromagnetic modeling software HFSS (Ansoft).
- a microstrip line with a characteristic impedance of 50 ohms has been simulated.
- the width of the 50 ohm microstrip line is equal to 0.14 mm at the rigid substrates of the circuit and radiating elements and at 0.185 mm at the flexible material alone.
- FIGS. 2 and 3 The results obtained in terms of adaptation and insertion losses are shown in FIGS. 2 and 3.
- Curve 2a represents the reflection coefficient observed for the still plane system of FIG. 1a and curve 2b represents the reflection coefficient. observed for the folded system of Figure Ib.
- the curve 3a shows the insertion losses observed for the device remained plane of the figure the and curve 3b represents ⁇ insertion losses observed for the folded device of Figure Ib.
- the reflection coefficient is very low in both cases ( ⁇ -25dB) which means that almost all of the energy injected at one end of the line is effectively transmitted to the other end.
- the insertion losses are very low ( ⁇ 0.3dB) in both line configurations, which means that little energy is dissipated along this line.
- FIGS. 4a and 4b show two examples of use of a wireless connection made between a plasma screen 41 for displaying videos and a video content processing box 42 (Front End Box in English) using a pair of antenna systems 10 according to the invention.
- the processing of video content is varied and ranges from digital reception of programming from a cable or satellite decoder or even from a server.
- the treatment box can be removed from the screen and be located either in the same room or in a neighboring room.
- a wireless link is therefore particularly suitable for such an application.
- the plasma screen is very flat, fixed to a wall or placed on a base in vertical position while the video content processing box is parallelepipedal in shape and used in horizontal position.
- the characteristics of the plasma screens and those of the video content processing boxes are such that their geometric dimensions extend in perpendicular dimensions.
- the establishment of an antenna system necessary for the implementation of the wireless link does not involve increasing the dimensions of these two technical elements, the invention finds an application here.
- FIG. 4a three distinct radiating elements are integrated: one in transmission Tx and two in reception RxI and Rx2, the arrows representing the orientations of the linear polarizations used.
- the use of two radiating elements in reception makes it possible to obtain a diversity scheme of order 2 in reception.
- the wave emitted by the three radiating elements has a horizontal linear polarization and a longitudinal radiation, that is to say in the plane of the substrate, as represented by the radiation diagrams 44 and 45 diagrammatically shown in the figure.
- the antenna system as shown in Figure la, can be placed horizontally on the video content processing box without folding constraint.
- an identical antenna system must however extend its dimensions in the vertical direction given the small thickness of the screen.
- the radiating elements having longitudinal radiation are advantageously made in printed technology and correspond, for example, to structures of the Vivaldi type, printed dipole, printed Yagi ...
- FIG. 4b shows another example in which radiating elements with transverse radiation, that is to say in the plane perpendicular to the substrate, are used, as represented by the radiation diagrams 44 and 45 diagrammatically shown. in Figure 4b.
- the configuration of the wireless link changes.
- the system requiring folding is then disposed on the video content processing box and another system is placed vertically flat on the screen.
- the radiating elements having a transverse radiation can be realized in printed technology (patch, Annular Slot Antenna ”), dielectric or ceramic (DRA: Dielectric Resonator Antenna %), 3D Metal (PIFA: Planar Inverted F Antenna, waves ).
- FIG. 5 an antenna system 10 according to another embodiment of the invention.
- the system comprises at least two radiating elements, one in reception Rx and one in transmission Tx, with polarization directions oriented at 90 ° to one another.
- three radiating elements are represented, two in reception RxI and Rx2 and one in transmission Tx.
- the wave emitted by the radiating element Tx has a polarization perpendicular to the wave received by the radiating elements Rx.
- the radiating elements are represented in open waveguide technology.
- Such a structure can be made of tin-plated sheet metal, molded or plastic overmoulded with metal inserts made of folded sheet metal, for example.
- the molding can advantageously be performed at the same time as the screen boxes and / or video content processing box.
- they can be made using various technologies such as printed technology (patch, dipoles, radiating slots ...), wired technology ...
- Several of these technologies can also be used in the same device: for example, rectangular waveguides in reception and a dipole in transmission. It is also possible to use square waveguides instead of rectangular waveguides to add a polarization diversity scheme.
- the radiation patterns obtained for operation at 5500 MHz are presented in FIG. 6. They are consistent with those obtained for an open waveguide taken alone, with a slight deformation of the radiation patterns of the RxI guide due to the presence of the second guide Rx2 and vice versa.
- This shielding 70 consists of a plate on which the waveguides are placed.
- FIG. 8 shows an example of use of a system 50 as shown in FIG. 5.
- the device 50 is placed vertically while it is positioned horizontally in the content processing box.
- video 82 the device 50 is placed vertically while it is positioned horizontally in the content processing box.
- the invention makes it possible to use the same model of antenna systems for multiple applications of various geometries without modifying the dimensions of the objects on which a wireless link is implemented.
- the invention thus gives a great versatility of applications to the radiating devices obtained.
- the implementation of wireless links is therefore facilitated. It is noted that the costs of developing and manufacturing such links are low thanks to the invention.
- materials widely used in consumer products can be used in radiating devices according to the invention and this reduces the cost of the solution.
- the invention is not limited to the embodiments described and the skilled person will recognize the existence of various embodiments such as for example the use of diversity scheme of the various radiating elements, various design possibilities of the rigid and flexible parts , the only constraint to find dimensions of the radiating device compatible with the areas of integration of the solution, various applications such as billboards, for example in airports and railway stations ...
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
- Waveguide Aerials (AREA)
- Radio Transmission System (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/919,770 US8193988B2 (en) | 2005-05-03 | 2006-05-03 | Versatile antenna system |
| KR1020077024472A KR101223134B1 (ko) | 2005-05-03 | 2006-05-03 | 기능이 많은 안테나 시스템 |
| JP2008509486A JP4943422B2 (ja) | 2005-05-03 | 2006-05-03 | 多機能アンテナシステム |
| EP06794396.9A EP1878123B1 (fr) | 2005-05-03 | 2006-05-03 | Systeme d'antenne polyvalent |
| CN2006800153354A CN101171757B (zh) | 2005-05-03 | 2006-05-03 | 通用天线系统 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0551166 | 2005-05-03 | ||
| FR0551166A FR2885456A1 (fr) | 2005-05-03 | 2005-05-03 | Dispositif rayonnant polyvalent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2007000520A2 true WO2007000520A2 (fr) | 2007-01-04 |
| WO2007000520A3 WO2007000520A3 (fr) | 2007-03-22 |
Family
ID=35539334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2006/050409 Ceased WO2007000520A2 (fr) | 2005-05-03 | 2006-05-03 | Systeme d'antenne polyvalent |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8193988B2 (fr) |
| EP (1) | EP1878123B1 (fr) |
| JP (1) | JP4943422B2 (fr) |
| KR (1) | KR101223134B1 (fr) |
| CN (1) | CN101171757B (fr) |
| FR (1) | FR2885456A1 (fr) |
| WO (1) | WO2007000520A2 (fr) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2923120B1 (fr) * | 2007-10-31 | 2010-05-07 | Archos Sa | Dispositif pour permettre a un appareil portable de recevoir et/ou d'emettre des signaux radiofrequences et systeme associe. |
| US20100029350A1 (en) * | 2008-08-01 | 2010-02-04 | Qualcomm Incorporated | Full-duplex wireless transceiver design |
| CN103050777B (zh) * | 2012-12-30 | 2015-04-29 | 惠州硕贝德无线科技股份有限公司 | 一种fpc天线及其与移动终端机壳组装方法 |
| US9197277B2 (en) | 2014-01-13 | 2015-11-24 | Tyco Fire & Security Gmbh | Two-way wireless communication enabled intrusion detector assemblies |
| US9196137B2 (en) | 2014-01-13 | 2015-11-24 | Tyco Fire & Security Gmbh | Two-way wireless communication enabled intrusion detector assemblies |
| EP3516412B1 (fr) * | 2016-09-22 | 2020-08-19 | Fraunhofer Gesellschaft zur Förderung der angewandten Forschung E.V. | Appareil d'estimation d'une direction d'arrivée et procédé correspondante |
| US10797394B2 (en) * | 2018-06-05 | 2020-10-06 | Intel Corporation | Antenna modules and communication devices |
| CN109768391B (zh) * | 2018-12-29 | 2020-12-15 | 京信通信技术(广州)有限公司 | 天线、天线电下倾角的显示系统及其传动机构 |
| CN113097706B (zh) * | 2021-03-18 | 2022-05-24 | 西安电子科技大学 | 一种柔性宽带偶极子可穿戴石墨烯天线 |
| CN117766976B (zh) * | 2023-11-17 | 2024-09-20 | 云谷(固安)科技有限公司 | 天线装置、壳体和电子设备 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB841335A (en) | 1957-05-17 | 1960-07-13 | Standard Telephones Cables Ltd | Cross-polarised antenna arrangement |
| US20030043078A1 (en) | 2001-08-23 | 2003-03-06 | Ten-Long Deng | Antenna module |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06177635A (ja) * | 1992-12-07 | 1994-06-24 | Mitsubishi Electric Corp | クロスダイポールアンテナ装置 |
| GB9318338D0 (en) * | 1993-09-03 | 1993-10-27 | Philips Electronics Uk Ltd | Antenna arrangement |
| JPH104313A (ja) * | 1996-06-17 | 1998-01-06 | Tohoku Electric Power Co Inc | アンテナ装置 |
| US6031503A (en) * | 1997-02-20 | 2000-02-29 | Raytheon Company | Polarization diverse antenna for portable communication devices |
| FR2760569B1 (fr) * | 1997-03-04 | 1999-04-09 | Alsthom Cge Alcatel | Antenne pour l'emission et/ou la reception de signaux a polarisation rectiligne |
| WO2001052447A2 (fr) * | 2000-01-14 | 2001-07-19 | Andrew Corporation | Repeteurs pour systemes de telecommunication sans fil |
| AU7368500A (en) * | 1999-09-29 | 2001-04-30 | Sony Electronics Inc. | Method and apparatus for providing a passive wireless network across divided spaces |
| JP4053231B2 (ja) * | 2000-11-09 | 2008-02-27 | 株式会社日立製作所 | 無線通信装置 |
| US6762722B2 (en) * | 2001-05-18 | 2004-07-13 | Ipr Licensing, Inc. | Directional antenna |
| JP2003087022A (ja) * | 2001-09-07 | 2003-03-20 | Tdk Corp | アンテナモジュールおよびそれを用いた電子装置 |
| JP2003124728A (ja) * | 2001-10-17 | 2003-04-25 | Sony Corp | アンテナ装置、通信モジュール、電子機器 |
| US6583765B1 (en) * | 2001-12-21 | 2003-06-24 | Motorola, Inc. | Slot antenna having independent antenna elements and associated circuitry |
| KR20040108656A (ko) * | 2002-03-08 | 2004-12-24 | 아이피알 라이센싱, 인코포레이티드 | 적응성 수신 및 전방향성 전송 안테나 어레이 |
| JP2004015460A (ja) | 2002-06-07 | 2004-01-15 | Japan Radio Co Ltd | 直交偏波スロットアレーアンテナ |
| JP2006203541A (ja) * | 2005-01-20 | 2006-08-03 | Japan Radio Co Ltd | 交差偏波通信システム |
-
2005
- 2005-05-03 FR FR0551166A patent/FR2885456A1/fr active Pending
-
2006
- 2006-05-03 US US11/919,770 patent/US8193988B2/en not_active Expired - Fee Related
- 2006-05-03 JP JP2008509486A patent/JP4943422B2/ja not_active Expired - Fee Related
- 2006-05-03 CN CN2006800153354A patent/CN101171757B/zh not_active Expired - Fee Related
- 2006-05-03 KR KR1020077024472A patent/KR101223134B1/ko not_active Expired - Fee Related
- 2006-05-03 WO PCT/FR2006/050409 patent/WO2007000520A2/fr not_active Ceased
- 2006-05-03 EP EP06794396.9A patent/EP1878123B1/fr not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB841335A (en) | 1957-05-17 | 1960-07-13 | Standard Telephones Cables Ltd | Cross-polarised antenna arrangement |
| US20030043078A1 (en) | 2001-08-23 | 2003-03-06 | Ten-Long Deng | Antenna module |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1878123A2 (fr) | 2008-01-16 |
| WO2007000520A3 (fr) | 2007-03-22 |
| KR101223134B1 (ko) | 2013-01-17 |
| CN101171757B (zh) | 2012-06-27 |
| JP4943422B2 (ja) | 2012-05-30 |
| JP2008541529A (ja) | 2008-11-20 |
| US8193988B2 (en) | 2012-06-05 |
| CN101171757A (zh) | 2008-04-30 |
| EP1878123B1 (fr) | 2014-02-26 |
| KR20080004513A (ko) | 2008-01-09 |
| FR2885456A1 (fr) | 2006-11-10 |
| US20090085821A1 (en) | 2009-04-02 |
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