公开(公告)号：EP0262590A3

公开(公告)日：1988-12-14

申请号：EP87113976

申请日：1987-09-24

Applicant: THE BOEING COMPANY

Inventor： Ramsey, Vernon

IPC: H01P01/213 ,  H01Q05/00

CPC classification number: H01P1/2138 ,  H01Q5/45

Abstract: A device for separating signals in the long or radar wavelength bands from signals in the short or infrared to ultraviolet wavelength bands which occupy a common area. A waveguide for directing radar band wavelengths has apertures (64, 76) in opposing walls (42, 44) of the waveguide (40), a first (64) of which is rectangular and has a greater length (65) and width (66) than the broadwall dimension of the waveguide; and the other (76) of which is circular with a diameter less than one-half the free space wavelength of the long wavelength signal. A pyramidal feedhorn (14) directs the long signal wavelength through the rectangular aperture, where the short-wavelength signal, which also comes down through the feedhorn passes through the second aperture. The long-wavelength component instead of passing through the second aperture is deflected into the waveguide. A short-wavelength detector (84) is positioned at the point of convergence of a ray cone passing through the first and second apertures, thus making the detected signal available for further signal processing.

公开(公告)号：EP0181617A3

公开(公告)日：1987-09-30

申请号：EP85114222

申请日：1985-11-08

Applicant: CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.

Inventor： Arduini, Carlo ,  Barboni, Renato ,  Bielli, Paolo ,  Castellani, Antonio ,  Contu, Salvatore ,  Ponzi, Ugo

IPC: H01Q19/19 ,  H01Q05/00 ,  H01Q15/00

CPC classification number: H01Q15/0026 ,  H01Q5/45 ,  H01Q25/001

Abstract: This structure for a dichroic antenna can be used in a reflector antenna capable of operating at the same time at two different frequencies or with two orthogonal polarizations, and presents mechanical characteristics allowing its use on board the satellites. The structure, suitable for a subreflector, comprises a plurality of layers with high mechanical stiffness in the external part, followed by layers with low dielectric constant and one or a plurality of metallic grids in the most internal part, separated by low-dielectric constant layers.

公开(公告)号：EP0188345A3

公开(公告)日：1988-02-03

申请号：EP86300166

申请日：1986-01-13

Applicant: COSSOR ELECTRONICS LIMITED

Inventor： Bond, Kevin James

IPC: H01Q15/00 ,  H01Q05/00 ,  H01Q21/30

CPC classification number: H01Q15/0013 ,  H01Q5/42

Abstract: O A primary slotted array antenna (20) operates at 10 GHz. On the front of the primary antenna there is disposed a secondary antenna which operates at 1 GHz and is substantially transparent at 10 GHz. The secondary antenna is formed by an array of patch radiators (13) 5 and a transmission line feed network (23). The radiators (13) and the feed network are all formed by a conductive grid (10) sandwiched between dielectric layers (11 and 12) and designed to achieve the transparency at 10 GHz. At 1 GHz the grid appears as a continuous conductor forming one conductor of a microstrip transmission line. 10 The other conductor (ground plane) is formed by the conductive front surface (22) of the primary antenna (20). The grid/dielectric sandwich (10, 11, 12) is suitably spaced from the ground plane by low dielectric pads (15). Other embodiments use slotline or coplanar stripline techniques. The ground plane may be an integral part of (15) the secondary antenna, also constructed to be transparent at the primary frequency.

公开(公告)号：EP0227005A3

公开(公告)日：1987-11-19

申请号：EP86117473

申请日：1986-12-16

Applicant: Rohde & Schwarz GmbH & Co. KG

Inventor： Bauer, Helmut ,  Linckelmann, Georg

IPC: H01Q05/00 ,  H01Q25/00 ,  H01Q21/30

CPC classification number: H01Q21/30 ,  H01Q5/40 ,  H01Q25/00

公开(公告)号：EP0225460A3

公开(公告)日：1987-09-30

申请号：EP86114804

申请日：1986-10-24

Applicant: Kufner, Oskar J.

Inventor： Kufner, Oskar J.

IPC: H01Q01/34 ,  H01Q09/44 ,  H01Q05/00

CPC classification number: H01Q9/36 ,  H01Q1/34 ,  H01Q5/371 ,  H01Q9/44

Abstract: Eine Sende- bzw. Empfangsantenne, insbesondere für den Kurz- bzw. Mittelwellenbereich, bestehend aus einem vertikalen Leiterabschnitt (l0) mit einer kapazitiven Kopplung gegenüber Erde im oberen Bereich (l3) und aus mindestens einem weiteren Leiterabschnitt (l2, 22), wobei die Leiterabschnitte (l0, l2, 22) einen nicht geschlossenen Rahmen bilden, der eine Fläche (9) umgibt, und der Anschluß von dem zweiten Leiterabschnitt (l2) und ggf. weiteren Leiterabschnitten (22) an dem jeweils vorhergehenden Leiterabschnitt (l0, l2) so ausgeführt ist, daß ein freies Endstück (l3, 23) dieses vorhergehenden Leiterabschnittes gebildet ist, wobei das freie Endstück (l3, 23) bzw. die freien Endstücke die kapazitive Kopplung bzw. weitere kapazitive Kopplungen bildet bzw. bilden. Die Anordnung ist so getroffen, daß vom ersten (l0) bzw. von jedem weiteren Leiterabschnitt (l2) jeweils nur ein Leiterabschnitt (l2, 22) ausgeht. Die Antenne bringt mehrere Vorteile, sie ist ua sehr breitbandig, durchstimmbar und weist einen hohen Wirkungsgrad und Strahlungswiderstand auf.

Abstract translation: 天线包括在上部（13）和导体的至少一个另外的部分（12,22）中具有与地球电容耦合的导体的垂直部分（10），导体的部分（10,12,22） 形成围绕区域（9）的开放框架，并且在每种情况下执行导体的导体的第二部分（12）和导体的任何其它部分（22）与前一部分（10,12）的连接，使得 形成前一导体部分的自由端部件（13,23），形成电容耦合或附加电容耦合的自由端件（13,23）。 该布置使得在每种情况下，导体的仅一个部分（12,22）从导体的第一（10）或每个另外部分（12）突出。 天线具有许多优点，特别是宽带，可调谐并且具有高效率和耐辐射性。

公开(公告)号：EP0057121A3

公开(公告)日：1982-08-11

申请号：EP82400050

申请日：1982-01-12

Applicant: THOMSON-CSF

Inventor： Salvat, François ,  Bouko, Jean ,  Coquio, Claude

IPC: H01Q05/00 ,  H01Q25/04

CPC classification number: H01Q25/04 ,  H01Q5/45

公开(公告)号：WO1998010485A1

公开(公告)日：1998-03-12

申请号：PCT/US1997013927

申请日：1997-08-12

Applicant: ERICSSON INC.

Inventor： ERICSSON INC. ,  HAYES, Gerard, James ,  LAMPE, Ross, Warren

IPC: H01Q05/00

CPC classification number: H01Q9/30 ,  H01Q1/362 ,  H01Q5/378

Abstract: An electromagnetic antenna (20, 30) that is compact and easy to manufacture includes a portion of a coaxial cable (24) having a first predetermined electrical length, the cable's outer conductor (22) being removed from the portion for forming an electromagnetic monopole (28), a parasitic element (30) including a conductor spirally wound around the dielectric material (26) of the portion, the parasitic element having a second predetermined electrical length, and an electrical ground plane (22) disposed in an electromagnetically cooperative relationship with the portion and the parasitic element. The parasitic element may be secured with an adhesive to the dielectric material of the portion, and the first predetermined length may be substantially one quarter of a first predetermined wavelength and the second predetermined length may be substantially one half of a second predetermined wavelength. In particular, the first predetermined length may be 9.4 centimeters and the second predetermined length may be 7.9 centimeters. Also, the electrical ground plane may be disposed substantially perpendicular to the portion and the parasitic element, and the pitch angle of the parasitic element windings may be varied for generating selected spatial patterns of electromagnetic field intensity and power density. Methods of making an electromagnetic antenna from a coaxial cable are also disclosed.

Abstract translation: 紧凑且易于制造的电磁天线（20,30）包括具有第一预定电长度的同轴电缆（24）的一部分，电缆的外导体（22）从用于形成电磁单极子的部分 28，一种寄生元件（30），包括螺旋地缠绕在该部分的电介质材料（26）周围的导体，该寄生元件具有第二预定的电长度;以及电接地平面（22），其以 该部分和寄生元件。 寄生元件可以用粘合剂固定到该部分的电介质材料，并且第一预定长度可以是基本上为第一预定波长的四分之一，并且第二预定长度可以基本上是第二预定波长的一半。 特别地，第一预定长度可以是9.4厘米，第二预定长度可以是7.9厘米。 此外，电接地平面可以布置成基本上垂直于部分和寄生元件，并且可以改变寄生元件绕组的俯仰角以产生电磁场强度和功率密度的选定空间图案。 还公开了从同轴电缆制造电磁天线的方法。

公开(公告)号：WO1995000980A1

公开(公告)日：1995-01-05

申请号：PCT/US1994007144

申请日：1994-06-24

Applicant: JAMPRO ANTENNAS

Inventor： JAMPRO ANTENNAS ,  MAHNAD, Ali, R.

IPC: H01Q05/00

CPC classification number: H01Q21/062 ,  H01Q5/40

Abstract: A dual frequency panel type antenna where the higher frequency dipoles (42a-42c) are located on the panel between the lower frequency dipoles (41a, 41b, 43a, 43b) and with a radiation pattern to provide for noninterference.

Abstract translation: 一种双频面板式天线，其中高频偶极子（42a-42c）位于低频偶极子（41a，41b，43a，43b）之间的面板上并具有辐射图案以提供不干扰。

公开(公告)号：WO1998015031A1

公开(公告)日：1998-04-09

申请号：PCT/GB1997002670

申请日：1997-10-02

Applicant: NORTHERN TELECOM LIMITED

Inventor： NORTHERN TELECOM LIMITED ,  KITCHENER, Dean ,  ROBSON, Julius, George ,  JOHNSTON, Ronald, Harvey

IPC: H01Q05/00

CPC classification number: H01Q21/30 ,  H01Q1/242 ,  H01Q5/321 ,  H01Q5/48 ,  H01Q9/32 ,  H01Q9/40 ,  H01Q9/42 ,  H01Q9/44

Abstract: A multi mode radio antenna is disclosed, operable in a multi-mode radio transceiver. One aspect of the present invention, provides a radio antenna having resonant frequencies operable to receive and transmit radio signals in different frequency bands according to two operating protocols. In accordance with another aspect of the invention, there is provided a method of operating the antenna.

Abstract translation: 公开了一种可在多模式无线电收发机中操作的多模式无线电天线。 本发明的一个方面提供一种无线电天线，其具有可操作以根据两种操作协议来接收和发送不同频带的无线电信号的共振频率。 根据本发明的另一方面，提供了一种操作天线的方法。

公开(公告)号：WO1995001661A1

公开(公告)日：1995-01-12

申请号：PCT/US1994007094

申请日：1994-06-23

Applicant: ANTENNA DOWN LINK, INC.

Inventor： ANTENNA DOWN LINK, INC. ,  BLACHLEY, Gerry, B.

IPC: H01Q05/00

CPC classification number: H01Q19/08 ,  H01Q5/47 ,  H01Q15/244

Abstract: A multiple-frequency feed assembly for an antenna system having two coaxial cavities, with a smaller, high-frequency cavity mounted coaxially within a larger, low-frequency cavity. A separate rotatable probe is mounted within each cavity. The smaller cavity is mounted within the larger cavity by any of several structures, such as a ring-shaped spider, a ring-shaped spacer in the form of a planar washer, or a harp extending rearwardly in the larger cavity. In all of the embodiments, a continuous, uninterrupted signal path is provided within the low-frequency cavity, around the high-frequency cavity, for conveying incident electromagnetic signals to the low-frequency probe mounted at the rear of the low-frequency cavity. In other embodiments, the feed assembly is adapted to detect incident electromagnetic signals in a third band of frequencies, lower than the low-frequency band, using a third probe located within the low-frequency cavity, immediately adjacent to the high-frequency cavity. This third probe preferably is aligned circumferentially with a conductor for conducting the detected high-frequency signal from the high-frequency probe to the exterior of the feed assembly. In an independent feature of the invention, a dielectric cover for the low-frequency cavity incorporates one or more integral dielectric blocks that function as quarter-wave plates for transforming incident circularly polarized electromagnetic signals in either or both of the low- and high-frequency bands into linearly polarized signals, for efficient detection by the corresponding probes.

Abstract translation: 一种用于具有两个同轴腔体的天线系统的多频进给组件，具有较小的高频空腔，其同轴地安装在较大的低频腔内。 在每个空腔内安装一个单独的可旋转探针。 较小的空腔通过几个结构中的任何一个安装在更大的腔内，例如环形星形，平面垫圈形式的环形间隔件或在较大空腔中向后延伸的竖琴。 在所有实施例中，在低频空腔内围绕高频空腔提供连续的不间断信号路径，用于将入射的电磁信号传送到安装在低频腔后部的低频探头。 在其他实施例中，馈送组件适于使用位于低频腔内的紧邻高频腔的低频腔内的第三探头来检测低于低频带的第三频带。 该第三探针优选地与用于将检测到的高频信号从高频探针导引到馈送组件的外部的导体圆周对准。 在本发明的独立特征中，用于低频空腔的电介质盖包括一个或多个整体电介质块，其作为四分之一波片用于在低频和高频中的任一个或两个中变换入射的圆偏振电磁信号 频带变成线偏振信号，用于通过相应探针的有效检测。