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WO2002007254A1 - Antenne pour fonctionnement a plusieurs frequences - Google Patents

Antenne pour fonctionnement a plusieurs frequences Download PDF

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Publication number
WO2002007254A1
WO2002007254A1 PCT/EP2001/008078 EP0108078W WO0207254A1 WO 2002007254 A1 WO2002007254 A1 WO 2002007254A1 EP 0108078 W EP0108078 W EP 0108078W WO 0207254 A1 WO0207254 A1 WO 0207254A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna according
frequency band
frequency bands
frequency
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
Application number
PCT/EP2001/008078
Other languages
German (de)
English (en)
Inventor
Roland Gabriel
Maximilian GÖTTL
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.)
Kathrein SE
Original Assignee
Kathrein Werke KG
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
Application filed by Kathrein Werke KG filed Critical Kathrein Werke KG
Priority to AU87608/01A priority Critical patent/AU8760801A/en
Publication of WO2002007254A1 publication Critical patent/WO2002007254A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • 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
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/35—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using two or more simultaneously fed points
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation

Definitions

  • the invention relates to an antenna for multi-frequency operation according to the preamble of claim 1.
  • radiators for the different frequency ranges.
  • These can consist, for example, of nested dipoles, as is described, for example, in DE-Al 198 23 749 for dual-polarized multi-polarization. antenna can be seen.
  • the disadvantage here is that, due to the geometry of the arrangement, the frequency bands cannot be directly adjacent, but rather must have a ratio of 1: 2.
  • broadband antennas can also be operated in neighboring frequency ranges or over a very broad frequency band.
  • no different, in particular variably adjustable, radiation characteristics can be achieved for the different frequency ranges.
  • Electrical Letters March 2000, Vol. 36, No. 6, pp. 487-488 are from the publication of D.H. Werner and D. Lee known "Design of dual-polarized multiband frequency selective surfaces using fractal elements" dual-polarized fractal antenna structures that can be operated in a large frequency band.
  • these antenna structures do not include separately adjustable radiation patterns.
  • a transmitting / receiving antenna is known from WO 98/43315. knows, which provides for a first polarization on the individual radiators of the antenna array duplex filter to thereby divide the antenna array for the receive frequency range (Rx) and for the transmit frequency range (Tx) into different inputs and outputs. If the different frequencies (Rx - Tx) are not decoupled via the orthogonal polarization, then at least one isolating amplifier in one of the two frequency bands at the duplex filter inputs and outputs is disadvantageously necessary. Isolation amplifiers are also required since adequate decoupling between the frequency bands (Rx and Tx) cannot be achieved. Furthermore, there is no suggestion for generating different lowering angles for different frequency ranges.
  • a two-band antenna array with broadband single radiators is known from WO 84/04855 AI. It comprises several single radiators that can be operated in two frequency bands. Each output of the individual radiators which can be operated in two frequency bands is assigned to a crossover network, the frequency band present at the radiator-side connection being present separately in at least two sub-frequency bands at the supply network-side connections.
  • the feed network is constructed in such a way that the connections on the feeder network side on the crossover for the respective sub-frequency band for beam shaping and in particular for different setting of the lowering angle of the main lobe can be interconnected with a predefinable and changeable adjustable phase and / or amplitude.
  • the antenna device according to the invention can be independently set with a very low filter effort
  • Beam pattern enables. Almost independent radiation characteristics can be achieved with a blocking attenuation of the crossovers of even less than approx. 15 dB, e.g. B. from 8 to 12 dB can be realized. It is now provided in accordance with the invention that the overall required blocking damping is multi-stage, i.e. to build up at least in two stages, the cheapest way is to carry out an additional filter arrangement in the feeder network connection itself, upstream or downstream, i.e. at least in the feed line section in front of a branch point and / or provided phase shifters.
  • filter structures can be used, which allow the interconnection by means of a passive feed network and at the same time have a sufficiently high decoupling between the different frequency bands for each polarization.
  • this can be achieved by means of crossovers in the form of a frequency-selective filter structure, which preferably allows a frequency band to be divided into two sub-frequency bands with sufficient blocking attenuation.
  • a fixed feed network or preferably a variably designed feed network using phase shifters now allows the individual emitters to be interconnected in such a way that the desired radiation diagram setting can be made for the respective frequency range, i.e. that in particular the vertical lowering angle can preferably be set separately according to the wishes and necessities.
  • Figure 1 a first embodiment of an antenna array with four dipoles, which are interconnected with a fixed feed network;
  • FIG. 2 an exemplary embodiment modified from FIG. 1, in which the interconnection for a frequency range is carried out variably by means of a fixed interconnection and the interconnection for a second frequency range is carried out variably by means of phase shifters;
  • FIG. 2a an enlarged section from FIG. 2 to illustrate a phase shifter
  • FIG. 3 a further exemplary embodiment in which the interconnection is carried out variably via phase shifters for both frequency ranges;
  • Figure 4 an antenna array with dual polarized
  • FIG. 5 an exemplary embodiment for a dual-band antenna, in which the second band is frequency-selectively divided into a frequency band f2 and f3 and thus a three-range antenna results; and
  • FIG. 6 an exemplary embodiment modified from FIG. 2 to clarify that a crossover can also be assigned to a group of at least two individual radiators.
  • the antenna array shown schematically therein comprises four individual radiators 1, in the exemplary embodiment shown in the manner of dipoles 1 ', which are usually arranged in front of a reflector which is arranged vertically, for example in the vertical direction.
  • the individual radiators 1 are fed via feed connections 5.1 and 5.2 via a fixed or hard-wired feed network 7.
  • feed connections 5.1 and 5.2 there is a multiple branching of the feed lines 9 starting from each feed connection 5.1 or 5.2, namely from the feed connection 5.1 via the feed line 9 and a branching point 11 into the feed branch lines 9.1 and via the respective subsequent branch point 13 to the subsequent feed branch line 9.2 .
  • the feed lines also contain impedance transformers, which are not shown for the sake of simplicity.
  • the individual radiators 1 are each connected via their respective output 17a via a line 17 to a radiator-side connection 19 of a crossover 21, which in turn is connected to two connections on the supply network side.
  • Conclusions 23.1 and 23.2 is connected, specifically frequency-selective for a first frequency band fl and a second frequency band f2.
  • the crossovers 21 can be constructed by a frequency-selective filter structure.
  • the respective feed branch lines 9.2 and 109.2 are connected to the connections 23.1 and 23.2 on the supply network side, so that all the individual radiators 1 are frequency-selectively connected to the supply connection 5.1 for the first frequency band fl and the supply connection 5.2 for the second frequency band f2.
  • the crossovers 21 are with sufficient blocking attenuation of z. B. 15 dB or even less than 10 dB in the at least two sub-frequency bands.
  • the interconnection can be carried out in such a way that the setting of the radiation diagram is preset differently for the respective frequency band.
  • the presetting can take place in such a way that, for example, the vertical drop angles are different for both frequency bands.
  • an additional filter 121 is connected to the two connections 5.1 and 5.2 on the supply network side in order to increase the total blocking attenuation.
  • the crossovers 21 can be designed such that they themselves have only a low blocking attenuation.
  • the exemplary embodiment according to FIG. 2 largely corresponds to that according to FIG. 1, but with the lower decided that for the one frequency band f2 there is no fixed interconnection at the branching points 113, but that in each case variably adjustable phase shifters 27 are provided.
  • the phase shifters can be constructed in such a way as is basically known from WO 98/21779.
  • a one-piece member 31 which is adjustable about a pivot axis 29 is provided and is connected to the feed connection 5.2 via a line 109 and 109.1.
  • This one-piece member 31 is connected, for example, galvanically or capacitively to a part-circular contact or coupling element 33, which is electrically connected at its opposite end regions to phase shifter connections 35, from which the connection to the supply network-side connections 23.2 at the frequency ranges is established via subsequent feed branch lines 109.2 21 takes place.
  • the so-called partially circular contact or coupling element 33 in the exemplary embodiment shown is preferably constructed using stripline or micro-stripline technology, specifically on a base plate 28 (ground plate).
  • the radiation diagram for the first frequency band fl thus takes place via the fixed feed network part, as a result of which a specific radiation diagram is predefined.
  • the radiation diagram is set with respect to the second frequency band f2 via a variable feed network, so that the radiation shaping and thus in particular the radiation reduction, ie the angle of reduction for the main lobe, can be set differently within the frequency band f2.
  • the exemplary embodiment according to FIG. 3 is modified compared to that according to FIG.
  • a feed network 7 is provided for both frequency bands fl and f2, which provides for a corresponding beam shaping in both frequency bands fl and f2 and thus in particular a vertically adjustable and / or changeable variable Allows lowering of the main legs.
  • an antenna array is now used which does not consist of single radiators 1, but of dual-polarized radiators 2.
  • These dual-polarized radiators 2 can be composed, for example, of a dipole square or a dipole cross, that is to say using single dipole radiators 1.
  • each dipole single radiator of a dual-polarized dipole cross 2 (or, for example in the case of a dipole square, two dipole radiators each arranged in parallel) is connected to a crossover 21 via a common line 17 or 17 '.
  • connection 5.1 at the top for the frequency fl is assigned to the polarization + 45 °
  • connection 5.1 ′ for the frequency fl at the bottom being assigned to the negative polarization -45 ° in FIG. 5
  • Figure 4 shown and assembled into a dipole cross dipole radiator are arranged in a + 45 ° / -45 ° orientation.
  • the dipoles la and lb of the dual-polarized dipole emitters 2, which are aligned in parallel to one another, are brought together frequency-selectively via two downstream feed networks, in the exemplary embodiment according to FIG set and / or change a first as for a second frequency fl and f2 separately for each polarization.
  • FIG. 5 shows an arrangement likewise for a dual-polarized antenna 2, each of the dual-polarized antennas 2 provided according to FIG. 5 comprising a cross dipole 2 ′ and a dipole square 2 ′′ surrounding the cross dipole 2 ′.
  • the individual radiators la or lb of the dipole square 2 ", which are respectively arranged parallel to one another, are connected via a variable feed network 7, the respective radiating individual radiators la of a radiator arrangement 2", which are arranged parallel to one another, being paired with the individual radiators arranged in the same parallel orientation la a second radiator arrangement 2 "are connected together via a phase shifter 27, and the feed connection-side connections of the phase shifters 27 then in turn lead via a branching point 211 to a common feed connection 5.3.
  • the connections 5.3 and 5.3 'thus serve to receive or transmit a third frequency band with a first and a second polarization.
  • the frequency band f3 can e.g. are at 824 to 960 MHz.
  • the outputs on the supply connection side then in turn for each of the two polarizations in accordance with the exemplary embodiment according to FIG. 4 via phase shifters 27 with the two supply connections for fl and f2 are interconnected.
  • the frequency band fl can e.g. 1920 to 2170 MHz and the second frequency band f2 cover a range from 1710 to 1880 MHz.
  • FIG. 5 thus shows a dual-polarized antenna with three band ranges, the radiation diagram and in particular the angle of attenuation for all three frequency bands and both orthogonal polarizations being adjustable differently.
  • a frequency-selective band division could of course also be provided for the third frequency band.
  • a fixed interconnection without an individually adjustable lowering angle could be implemented, as is shown schematically, for example, in FIG. 2.
  • the crossovers can preferably be implemented by filter structures, which can also be integrated in particular in the housing of the antenna.
  • the filter structures can also consist of shielded stripline structures or triplate structures.
  • the filter structures can also be formed from coaxial filters.
  • the corresponding antennas comprise at least two individual radiators.
  • the crossovers should have a minimum blocking attenuation of at least 6 dB, 8dB or 10 dB compared to the other frequency range. This value should preferably be at least 15 dB, in particular at least 20 dB.
  • additional filters can be provided in the output of the antenna after the interconnection by means of the feed network mentioned.
  • An improvement in heat dissipation can finally also be achieved in that the filters are attached to the reflector plate.
  • the filters on the refector plate can be mechanically stacked on top of each other be stacked.
  • FIG. 6 A modification is shown on the basis of FIG. 6, which can in principle be used for all the exemplary embodiments explained in accordance with FIGS. 1 to 5.
  • a group 100 with two individual radiators 1 is assigned to a crossover 21.
  • the group 100 of individual emitters 1 can not only have two individual emitters 1, 1 ', but also, for example, several individual emitters 1, 1', e.g. comprise three individual radiators, which can be assigned to an input of a crossover 21, for example via a common summing point and a downstream line.
  • additional filters 121 can be provided, which are preferably assigned in the output of an antenna after interconnection by means of the feed network 7, and are preferably attached to the reflector plate can.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)

Abstract

La présente invention concerne une antenne améliorée comprenant au moins deux émetteurs individuels (1, 2), pouvant fonctionner sur au moins deux bandes de fréquences (f1, f2, ..., fn). L'antenne présente des améliorations en ce que: chaque sortie de l'émetteur individuel (1) pouvant fonctionner sur au moins deux bandes de fréquences (f1, f2, ..., fn) ou la sortie d'un groupe d'émetteurs correspondants (1) est associée à un séparateur de fréquences (21), la bande de fréquences au niveau de la connexion côté émetteur apparaissant séparément au niveau des connexions côté réseau d'alimentation (23.1, 23.2) dans au moins deux bandes de fréquences partielles (f1, f2, ..., fn); un réseau d'alimentation (7) a une configuration telle que les connexions côté alimentation (32.1, 23.2) peuvent être interconnectées au niveau du séparateur de fréquences (21), avec une phase et/ou une amplitude prédéterminable ou modifiable, pour la bande de fréquences partielle correspondante, afin de permettre la formation de faisceau et notamment de permettre différents réglages de l'angle d'abaissement du lobe principal.
PCT/EP2001/008078 2000-07-18 2001-07-12 Antenne pour fonctionnement a plusieurs frequences Ceased WO2002007254A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU87608/01A AU8760801A (en) 2000-07-18 2001-07-12 Antenna for multi-frequency operation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10034911.0 2000-07-18
DE10034911A DE10034911A1 (de) 2000-07-18 2000-07-18 Antenne für Mehrfrequenzbetrieb

Publications (1)

Publication Number Publication Date
WO2002007254A1 true WO2002007254A1 (fr) 2002-01-24

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Application Number Title Priority Date Filing Date
PCT/EP2001/008078 Ceased WO2002007254A1 (fr) 2000-07-18 2001-07-12 Antenne pour fonctionnement a plusieurs frequences

Country Status (4)

Country Link
CN (1) CN2514507Y (fr)
AU (1) AU8760801A (fr)
DE (1) DE10034911A1 (fr)
WO (1) WO2002007254A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006059230A1 (fr) * 2004-12-01 2006-06-08 Finglas Technologies Limited Ensemble antenne
WO2007039303A1 (fr) * 2005-10-06 2007-04-12 Kathrein-Werke Kg Reseau d'alimentation et antenne a au moins un emetteur et un reseau d'alimentation
US7358924B2 (en) 2005-10-07 2008-04-15 Kathrein-Werke Kg Feed network, and/or antenna having at least one antenna element and a feed network
US7412255B2 (en) 2003-02-14 2008-08-12 Flextronics Sales & Marketing A-P Ltd. Antenna arrangement and mobile terminal device
EP2341577A1 (fr) * 2009-12-29 2011-07-06 Ubidyne, Inc. Procédé et appareil d'inclinaison de faisceaux dans un réseau de communication mobile
WO2012016941A1 (fr) 2010-08-04 2012-02-09 Nokia Siemens Networks Oy Antenne large bande et système de station de base radio pour traiter au moins deux bandes de fréquences ou deux normes radio dans un système de radiocommunications
WO2012048343A1 (fr) * 2010-10-08 2012-04-12 Commscope, Inc. Of North Carolina Antenne ayant des réseaux d'alimentation actif et passif
WO2012065622A1 (fr) * 2010-11-15 2012-05-24 Telefonaktiebolaget L M Ericsson (Publ) Architecture d'antenne permettant de maintenir la forme de faisceau dans une antenne reconfigurable
EP2487800A1 (fr) * 2011-02-11 2012-08-15 Alcatel Lucent Réseaux d'antennes actives
WO2014086386A1 (fr) * 2012-12-03 2014-06-12 Telefonaktiebolaget L M Ericsson (Publ) Nœud de communication sans fil à montage d'antenne tribande 4tx/4rx
WO2014100008A1 (fr) * 2012-12-18 2014-06-26 Commscope, Inc. Of North Carolina Réseau d'alimentation et source de rayonnement électromagnétique
DE102013012295A1 (de) 2013-07-24 2015-01-29 Kathrein-Werke Kg Antenne für Dual- oder Multiband-Betrieb
EP2827449A4 (fr) * 2012-03-20 2015-03-11 Huawei Tech Co Ltd Dispositif d'antenne et système
EP2950385A1 (fr) * 2014-05-28 2015-12-02 Alcatel Lucent Antenne multibande
CN106415930A (zh) * 2014-06-05 2017-02-15 康普技术有限责任公司 对于共享孔径阵列天线的独立方位图案

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CN102347529A (zh) * 2010-08-04 2012-02-08 诺基亚西门子通信公司 用于处理无线电通信系统中的至少两个频带或无线电标准的宽带天线和无线电基站系统
WO2012163018A1 (fr) * 2011-10-21 2012-12-06 华为技术有限公司 Antenne
JP6089924B2 (ja) * 2013-04-24 2017-03-08 日立金属株式会社 アンテナ装置
DE102015007503A1 (de) * 2015-06-11 2016-12-15 Kathrein-Werke Kg Dipolförmige Strahleranordnung
WO2017218396A1 (fr) * 2016-06-17 2017-12-21 Commscope Technologies Llc Antennes réseau à commande de phase ayant des déphaseurs multi-niveaux

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Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7412255B2 (en) 2003-02-14 2008-08-12 Flextronics Sales & Marketing A-P Ltd. Antenna arrangement and mobile terminal device
WO2006059230A1 (fr) * 2004-12-01 2006-06-08 Finglas Technologies Limited Ensemble antenne
US7782268B2 (en) 2004-12-01 2010-08-24 Kavveri Telecom Products Limited Antenna assembly
ES2367495A1 (es) * 2005-10-06 2011-11-04 Kathrein-Werke Kg Red de alimentación o bien antena con al menos un emisor y una red de alimentación.
WO2007039303A1 (fr) * 2005-10-06 2007-04-12 Kathrein-Werke Kg Reseau d'alimentation et antenne a au moins un emetteur et un reseau d'alimentation
KR101279796B1 (ko) 2005-10-06 2013-06-28 카트라인-베르케 카게 공급 네트워크 또는 적어도 하나의 방사기 및 공급 네트워크를 구비한 안테나
US7358924B2 (en) 2005-10-07 2008-04-15 Kathrein-Werke Kg Feed network, and/or antenna having at least one antenna element and a feed network
EP2341577A1 (fr) * 2009-12-29 2011-07-06 Ubidyne, Inc. Procédé et appareil d'inclinaison de faisceaux dans un réseau de communication mobile
WO2012016941A1 (fr) 2010-08-04 2012-02-09 Nokia Siemens Networks Oy Antenne large bande et système de station de base radio pour traiter au moins deux bandes de fréquences ou deux normes radio dans un système de radiocommunications
WO2012048343A1 (fr) * 2010-10-08 2012-04-12 Commscope, Inc. Of North Carolina Antenne ayant des réseaux d'alimentation actif et passif
US9014068B2 (en) 2010-10-08 2015-04-21 Commscope Technologies Llc Antenna having active and passive feed networks
WO2012065622A1 (fr) * 2010-11-15 2012-05-24 Telefonaktiebolaget L M Ericsson (Publ) Architecture d'antenne permettant de maintenir la forme de faisceau dans une antenne reconfigurable
US9112551B2 (en) 2010-11-15 2015-08-18 Telefonaktiebolaget L M Ericsson (Publ) Antenna architecture for maintaining beam shape in a reconfigurable antenna
EP2487800A1 (fr) * 2011-02-11 2012-08-15 Alcatel Lucent Réseaux d'antennes actives
WO2012107176A1 (fr) * 2011-02-11 2012-08-16 Alcatel Lucent Réseaux d'antennes actives
US9277590B2 (en) 2011-02-11 2016-03-01 Alcatel Lucent Active antenna arrays
US10594043B2 (en) 2012-03-20 2020-03-17 Huawei Technologies Co., Ltd. Antenna device and system having active modules
EP2827449A4 (fr) * 2012-03-20 2015-03-11 Huawei Tech Co Ltd Dispositif d'antenne et système
US9627774B2 (en) 2012-03-20 2017-04-18 Huawei Technologies Co., Ltd. Antenna device and system having active and passive modules
WO2014086386A1 (fr) * 2012-12-03 2014-06-12 Telefonaktiebolaget L M Ericsson (Publ) Nœud de communication sans fil à montage d'antenne tribande 4tx/4rx
US9774098B2 (en) 2012-12-03 2017-09-26 Telefonaktiebolaget Lm Ericsson (Publ) Wireless communication node with 4TX/4RX triple band antenna arrangement
WO2014100008A1 (fr) * 2012-12-18 2014-06-26 Commscope, Inc. Of North Carolina Réseau d'alimentation et source de rayonnement électromagnétique
US9548536B2 (en) 2012-12-18 2017-01-17 Commscope Inc. Of North Carolina Feed network and electromagnetic radiation source
DE102013012295A1 (de) 2013-07-24 2015-01-29 Kathrein-Werke Kg Antenne für Dual- oder Multiband-Betrieb
EP2950385A1 (fr) * 2014-05-28 2015-12-02 Alcatel Lucent Antenne multibande
CN106415930A (zh) * 2014-06-05 2017-02-15 康普技术有限责任公司 对于共享孔径阵列天线的独立方位图案
CN106415930B (zh) * 2014-06-05 2020-01-31 康普技术有限责任公司 对于共享孔径阵列天线的独立方位图案
US10693244B2 (en) 2014-06-05 2020-06-23 Commscope Technologies Llc Independent azimuth patterns for shared aperture array antenna

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AU8760801A (en) 2002-01-30
DE10034911A1 (de) 2002-02-07

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