公开(公告)号：EP0627128A1

公开(公告)日：1994-12-07

申请号：EP93904937.0

申请日：1993-02-05

申请人： CALIFORNIA AMPLIFIER

发明人： WEST, Laurice, J. ,  GABRELIAN, Edward, E.

IPC分类号： H01P5 ,  H01Q5 ,  H01Q13

CPC分类号： H01Q13/025 ,  H01P5/103 ,  H01Q5/47

摘要： PCT No. PCT/US93/01054 Sec. 371 Date Oct. 13, 1993 Sec. 102(e) Date Oct. 13, 1993 PCT Filed Feb. 5, 1993 PCT Pub. No. WO93/16502 PCT Pub. Date Aug. 19, 1993.A feed structure (24) is disclosed for reception of orthogonal linearly polarized signals from communication satellites. The structure includes probes (34, 36) extended through the back wall (32) of a cavity (28) with associated transmission members (50, 52) and an associated isolation member (54). The teachings of the invention are extended to structures having the probes extended through the side wall (100) of a cavity. The teachings of the invention are further extended to dual band feed structures (124, 220 and 320). The structures are particularly suited to enhance high signal to noise ratios because of short path lengths to external receiver circuits and to enable realization in simple economical one piece castings.

公开(公告)号：EP0403894A2

公开(公告)日：1990-12-27

申请号：EP90110893.6

申请日：1990-06-08

申请人： Hughes Aircraft Company

发明人： Raghavan, Krishnan ,  Gawlas, Gary J. ,  Bains, Paramjit S.

IPC分类号： H01Q5/00 ,  H01Q13/02

CPC分类号： H01Q13/02 ,  H01Q5/47

摘要： A horn radiator assembly (10) includes two horn radiators (12, 14) each of which is formed as a conical horn and a waveguide of constant cross section connected to the small end of the horn as a feed and providing a signal port. The first of the horn radiators (12) is of relatively large cross section and serves to radiate electromagnetic waves at a relatively low frequency. The second of the horn radiators (14) is of relatively small cross section and serves to radiate electromagnetic waves at a relatively high frequency. The second radiator (14) is nested within the first radiator (12), and is positioned with its radiating aperture (28) coplanar with the radiating aperture (20) of the first radiator (12). In the second radiator (14), the waveguide feed (26) is provided with a bend (36) allowing the waveguide feed to pass through a wall (32) of the first radiator (12). A strut (34) may be affixed to the bend (36) to provide a symmetrical transverse support within the first radiator for the second radiator. A doubly-tapered electrically conductive sheet (48) extends from an apex within the throat (18) of the first radiator horn (12) to the transverse support, and from there tapers back to contact the horn of the second radiator (14). The tapered sheet (48) guides low-frequency radiation past the strut (34) and the bend (36) to minimize standing wave ratio.

摘要翻译： 喇叭辐射器组件（10）包括两个喇叭辐射器（12,14），每个喇叭辐射器形成为圆锥形喇叭，并且恒定横截面的波导与喇叭的小端连接作为馈电并提供信号端口。 喇叭辐射器（12）中的第一个具有较大的横截面，用于以较低的频率辐射电磁波。 喇叭辐射器（14）中的第二个具有相对小的横截面，用于以较高的频率辐射电磁波。 第二散热器（14）嵌套在第一散热器（12）内，并且其辐射孔（28）定位成与第一散热器（12）的辐射孔（20）共面。 在第二散热器（14）中，波导馈送（26）设置有允许波导馈送通过第一辐射器（12）的壁（32）的弯曲部（36）。 支柱（34）可以固定到弯曲部（36）上，以在第二散热器的第一散热器内提供对称的横向支撑。 双锥形导电片（48）从第一散热器喇叭（12）的喉部（18）内的顶点延伸到横向支撑件，并且从那里逐渐变细以接触第二散热器（14）的喇叭。 锥形片（48）引导低频辐射通过支柱（34）和弯曲部（36），以最小化驻波比。

公开(公告)号：EP3391465B1

公开(公告)日：2024-08-28

申请号：EP16751703.6

申请日：2016-07-12

IPC分类号： H01Q13/06 ,  H01P3/08 ,  H01Q21/06 ,  H01Q5/47 ,  H01Q5/25 ,  H01Q5/22 ,  H01Q13/24 ,  H01Q13/08 ,  H01P3/16

CPC分类号： H01Q13/06 ,  H01Q13/24 ,  H01Q21/067 ,  H01Q5/22 ,  H01Q5/25 ,  H01Q5/47 ,  H01Q13/08 ,  H01P3/16

公开(公告)号：EP3391466A1

公开(公告)日：2018-10-24

申请号：EP16810438.8

申请日：2016-12-19

申请人： Thales Alenia Space Italia S.p.A. Con Unico Socio

发明人： MIZZONI, Roberto ,  RAVANELLI,Rodolfo ,  CAMPANA, Paolo

IPC分类号： H01Q19/19 ,  H01Q5/47 ,  H01Q1/28

CPC分类号： H01Q5/47 ,  H01Q1/288 ,  H01Q19/193

摘要： Disclosed herein is a double-reflector antenna (1) for use on board a satellite or space platform for data downlink or for telemetry, tracking and command. Said double-reflector antenna (1) comprises a main reflector (11) and a sub- reflector (12) arranged coaxially with, and in front of, one another. Additionally, the double-reflector antenna (1) further comprises a coaxial feeder, that is arranged coaxially with the main reflector (11) and the sub-reflector (12), and that includes inner ( 14 ) and outer (13) conductors arranged coaxially with, and spaced apart from, one another. The coaxial feeder is designed to be fed with downlink microwave signals to be transmitted by the double- reflector antenna (1), and to radiate said downlink microwave signals through a feed aperture (15), that is located centrally with respect to the main reflector (11) and that gives onto the sub-reflector (12). The inner conductor (14) protrudes axially and outwardly from the feed aperture (15) up to the sub-reflector (12) and is rigidly coupled to said sub-reflector (12) thereby supporting said sub-reflector (12).

公开(公告)号：EP3180816A1

公开(公告)日：2017-06-21

申请号：EP15749803.1

申请日：2015-08-11

申请人： ZODIAC DATA SYSTEMS

发明人： COUSIN, Pascal ,  KARAS, Alain

IPC分类号： H01Q25/02 ,  H01Q13/02 ,  G01S13/44

CPC分类号： H01Q5/55 ,  G01S13/44 ,  H01Q5/28 ,  H01Q5/47 ,  H01Q13/0258 ,  H01Q25/02

摘要： The invention relates to a source (1) for a reflector antenna, comprising: - a pseudo-cavity (100), - a first sigma excitation device (10) for exciting the pseudo-cavity (100) in such a way as to generate a sum channel signal via a coaxial waveguide (400), - a second excitation device (20) for exciting the pseudo-cavity (100) in such a way as to generate a difference channel signal, the second device (20) comprising eight probes (8) angularly distributed around a principal emission axis (A) of the source (1), and a difference supply circuit (25) for supplying the eight excitation probes (8) according to the two modes TE
21 .

摘要翻译： 本发明涉及一种用于反射器天线的源（1），包括： - 伪腔（100）， - 第一西格玛激励装置（10），用于激励伪腔（100）以产生 经由同轴波导（400）的和信道信号， - 用于以产生差信道信号的方式激励所述伪空腔（100）的第二激励装置（20），所述第二装置（20）包括八个探针 （8）围绕源（1）的主发射轴（A）成角度地分布，以及差分电源电路（25），用于根据两个模式TE21提供八个激励探针（8）。

公开(公告)号：EP2943995A1

公开(公告)日：2015-11-18

申请号：EP13700211.9

申请日：2013-01-09

申请人： Thrane & Thrane A/s

发明人： SMITH, Thomas ,  GRANHOLM, Johan ,  BREINBJERG, Olav ,  KIM, Oleksiy S.

IPC分类号： H01Q1/28 ,  H01Q5/00 ,  H01Q19/19

CPC分类号： H01Q1/288 ,  H01Q1/362 ,  H01Q5/47 ,  H01Q19/191 ,  H01Q19/192 ,  H01Q19/193

摘要： A dual antenna comprising a dual reflector set-up with a main reflector, a sub-reflector and a feed antenna, where a helix is provided which also utilizes the main reflector. The sub-reflector is positioned between the main reflector and the helix so that the helix will not unnecessarily disturb the operation of the dual reflector set-up while using the main reflector.

公开(公告)号：EP1287580B1

公开(公告)日：2008-11-12

申请号：EP01935837.3

申请日：2001-05-23

申请人： Newtec cy.

发明人： VERSTRAETEN, Guy

IPC分类号： H01P1/213

CPC分类号： H01P1/161 ,  H01P1/213 ,  H01Q5/47 ,  H01Q13/0208 ,  H01Q13/0258 ,  H01Q13/24

摘要： A dual band, higher and lower frequency range transducer with a circular coaxial waveguide feed is described having a first junction for connection of a lower frequency range outer waveguide of the coaxial waveguide feed to at least two rectangular or ridge waveguides offset from the longitudinal axis of the transducer and a second junction for connection of the at least two rectangular or ridge waveguides to a further waveguide. A third junction is provided for connecting an inner waveguide of the coaxial waveguide feed to a higher frequency range waveguide. The transducer comprises at least first and second parts joined across a first plane substantially perpendicular to the longitudinal axis and including at least a portion of the higher frequency range waveguide extending within the first plane of the join. A seal such as an 'O' ring seal may be placed easily in the plane of the join thus preventing moisture ingress. Similarly, a feed horn and input and output ports may be sealingly attached to the first and second parts of the transducer. The first and second junctions are preferably impedance matched turnstile junctions.

公开(公告)号：EP1249056A1

公开(公告)日：2002-10-16

申请号：EP00980531.8

申请日：2000-11-16

申请人： HRL LABORATORIES, LLC

发明人： POPA, Adrian, E. ,  BRIDGES, William, B.

IPC分类号： H01Q13/24

CPC分类号： H01Q21/30 ,  H01Q1/40 ,  H01Q5/47 ,  H01Q13/24 ,  H01Q19/08

摘要： An antenna. The antenna includes a first dielectric antenna rod having a first dielectric constant. The first dielectric antenna rod is coupled to a first frequency transmission source for propagating first frequency band radiation from the first dielectric antenna rod into a medium having a medium dielectric constant. A second dielectric antenna rod is provided having a second dielectric constant. The second dielectric antenna rod is coupled to a second frequency transmission source for propagating second frequency band radiation from the second dielectric antenna rod into the medium. The first dielectric antenna rod is coaxially mounted within the second dielectric antenna rod. The first dielectric constant is greater than the second dielectric constant. The second dielectric constant is greater than the medium dielectric constant.

公开(公告)号：EP1037305A3

公开(公告)日：2002-10-02

申请号：EP00105307.3

申请日：2000-03-15

申请人： TRW Inc.

发明人： Chandler, Charles W. ,  Em, Makkalon

IPC分类号： H01Q13/02 ,  H01Q5/00

CPC分类号： H01Q13/0216 ,  H01Q5/30 ,  H01Q5/47

摘要： The antenna includes a coupling portion to permit coupling to a communication device. An inner portion is coupled to the coupling portion, and includes a first choke having a depth which extends substantially parallel to a central longitudinal axis of the antenna and a width which extends in a radial direction of the antenna. The depth and the width of the first choke are set so that the first choke will operate at the first frequency. An outer portion is coupled to the inner portion, wherein the outer portion has a maximum diameter in the radial direction which is greater than the maximum diameter in the radial direction of the inner portion. The outer portion includes a second choke which also has a depth to extend substantially parallel to the central longitudinal axis of the antenna, and a width which extends in the radial direction. The depth and the width of the second choke are greater than the depth and the width of the first choke, and are set so that the second choke will operate at the second frequency.

公开(公告)号：EP1162686A1

公开(公告)日：2001-12-12

申请号：EP01401433.6

申请日：2001-06-01

申请人： Thomson Licensing S.A.

发明人： Louzir, M. ALi ,  Pintos, Jean-Francois ,  Thudor, Franck ,  Hirtzlin, Patrice

IPC分类号： H01Q5/00 ,  H01Q13/24 ,  H01Q11/08 ,  H01Q21/28

CPC分类号： H01Q21/28 ,  H01Q5/47 ,  H01Q11/08 ,  H01Q13/24 ,  H01Q21/067

摘要： The present invention relates to a source-antenna for transmitting/receiving electromagnetic waves comprising an array of n radiating elements (11 3 , 11 4 ) operating in a first frequency band, means (20) with longitudinal radiation operating in a second frequency band, the array and the means with longitudinal radiation having a substantially common phase centre, the n radiating elements being arranged symmetrically about the longitudinal-radiation means, and each element (11 3 , 11 4 ) of the array consisting of a radiating element of the travelling wave type.

摘要翻译： 本发明涉及一种源天线用于发送/接收的电磁波，其包括在第一频带，装置（20）具有纵向辐射在第二频带中操作时，阵列操作N个辐射单元（113，114）的阵列的 并与具有基本上共同的相位中心纵向辐射的装置，所述N个辐射元件被对称地布置的纵向辐射的装置，并且该阵列由...组成的行波型的辐射元件中的每个元件（113，114）。