公开(公告)号：US20050057428A1

公开(公告)日：2005-03-17

申请号：US10684698

申请日：2003-10-14

Applicant: Kenichi Fujita

Inventor： Kenichi Fujita

IPC: H01Q1/08 ,  H01Q1/12 ,  H01Q3/02 ,  H01Q19/17

CPC classification number: H01Q1/125 ,  H01Q19/17

Abstract: A bracket (12) is fixed to the rear surface of a reflector (2). The bracket has a planar plate (14) which, when the bracket is fixed to the reflector, is perpendicular to a polarity axis (16). Plural, spaced-apart arcuate slots (20) arranged on an imaginary circle on the planar plate (14) about the polarity axis (16) are formed in the planar plate (14). An adapter plate (24) is disposed in contact with the surface of the planar plate (14) facing the reflector (2). The bracket (12) is rotatable about the polarity axis (16) relative to the adapter plate (24). The adapter plate (24) has screw holes (26) in alignment with the arcuate slots (20) in the planar plate (14). A bracket (28) is disposed on the side of the planar plate (14) opposite to the reflector (2). The bracket (28) has a pair of wings (30, 32). A connecting member (34) is formed integral with the wings (30, 32). The connecting member (34) is perpendicular to the wings (30, 32). The bracket (28) is rotatable about an elevation adjustment axis passing between the wings (30, 32). The bracket (28) has tabs (36, 38, 40). The tabs (36, 38, 40) are adapted to contact the planar plate (14) and provided with respective holes (42, 44, 46). Bolts (48) are inserted through the respective holes (42, 44, 46) and the respective arcuate slots (20) and screwed into the screw holes (26) in the adapter plate (24), whereby the brackets (12, 28) are secured to the adapter plate (24).

Abstract translation: 支架（12）固定到反射器（2）的后表面。 支架具有平板（14），当支架固定到反射器时，该平板垂直于极性轴线（16）。 在平面板（14）上形成有多个间隔开的弧形槽（20），其围绕极性轴线（16）布置在平板（14）上的假想圆上。 接合板（24）设置成与平面板（14）的面向反射器（2）的表面接触。 支架（12）可相对于适配板（24）围绕极性轴线（16）旋转。 适配板（24）具有与平板（14）中的弧形槽（20）对准的螺孔（26）。 支架（28）设置在与反射器（2）相对的平板（14）侧。 托架（28）具有一对翼（30,32）。 连接构件（34）与翼（30,32）形成一体。 连接构件（34）垂直于机翼（30,32）。 支架（28）能够绕通过翼（30,32）之间的高度调节轴线旋转。 支架（28）具有突片（36,38,40）。 突片（36,38,40）适于接触平板（14）并且设置有相应的孔（42,44,46）。 螺栓（48）通过相应的孔（42,44,46）和相应的弓形槽（20）插入并拧入适配器板（24）中的螺孔（26）中，由此支架（12,28） 被固定到适配器板（24）。

公开(公告)号：US20030218574A1

公开(公告)日：2003-11-27

申请号：US10390694

申请日：2003-03-19

Inventor： Hiroyuki Suga

IPC: H01Q013/00 ,  H01Q019/12

CPC classification number: H01Q19/17 ,  H01Q1/247 ,  H01Q1/40 ,  H01Q1/42 ,  H01Q13/0208

Abstract: A converter main body is formed from composite material wherein reinforcing material comprising carbon fiber is combined with plastic material comprising ABS resin in an amount that is 30 wt % thereof. The coefficient of linear expansion of that composite material is made to be less than or equal to the coefficient of linear expansion of aluminum die cast alloy.

Abstract translation: A转炉主体由复合材料形成，其中包含碳纤维的增强材料与包含其中30重量％的ABS树脂的塑料材料组合。 使该复合材料的线膨胀系数小于或等于铝压铸合金的线膨胀系数。

公开(公告)号：US06587246B1

公开(公告)日：2003-07-01

申请号：US09786313

申请日：2001-03-09

Applicant: Rupert N Anderton ,  Alan H Lettington

Inventor： Rupert N Anderton ,  Alan H Lettington

IPC: G02B2608

CPC classification number: H01Q19/17 ,  G01S3/789 ,  G01V8/005 ,  G02B26/10 ,  H01Q3/20 ,  H01Q3/245 ,  H01Q19/175

Abstract: Scanning apparatus which may be used in a real-time passive millimeter wavelength imaging system or in other radiometry systems. The apparatus scans input radiation from a scene and output radiation is transmitted to a receiver system, for example a millimeter wave imaging camera or a radar receiver. The apparatus comprises a rotatable reflective plate having an axis of rotation passing through the centre of its surface and a lens arrangement for selectively transmitting and focusing radiation having a particular direction of polarisation. The apparatus may also comprise a feed horn array comprising a plurality of feed horns, the feed horns forming part of a spherical surface having a radius of curvature substantially equal to R/2 and being concentric with the third substantially spherical polarising element. The apparatus may further comprise a detector array comprising a plurality of detector elements. The detector array may form part of a millimeter wave imaging camera.

Abstract translation: 可用于实时被动毫米波长成像系统或其他辐射测量系统中的扫描设备。 该装置扫描来自场景的输入辐射，并且输出辐射被发射到接收机系统，例如毫米波成像相机或雷达接收机。 该装置包括具有穿过其表面中心的旋转轴线的可旋转反射板和用于选择性地透射和聚焦具有特定方向偏振的辐射的透镜装置。 该装置还可以包括包括多个馈电喇叭的馈电喇叭阵列，馈电喇叭形成具有基本上等于R / 2的曲率半径并与第三基本上为球面的偏振元件同心的球面的一部分。 该装置还可以包括包括多个检测器元件的检测器阵列。 检测器阵列可以形成毫米波成像相机的一部分。

公开(公告)号：US20030090432A1

公开(公告)日：2003-05-15

申请号：US10329575

申请日：2002-12-27

Applicant: Gilat Satellite Networks, Ltd. (99%)

Inventor： Danny Spirtus

IPC: H01Q019/12

CPC classification number: H01Q25/007 ,  H01Q1/125 ,  H01Q3/005 ,  H01Q3/2658 ,  H01Q5/45 ,  H01Q19/132 ,  H01Q19/17

Abstract: An antenna includes a reflector having a first axis, a second axis, a focal zone that is about parallel to the first axis, and a focal point located within the focal zone. A transmit feed is located at the focal point, and at least one receive feed is located within the focal zone. The transmit feed is part of a bidirectional feed that includes an integral receive feed. The bidirectional feed transmits and receives an RF signal carrying digital information signals to and from a first satellite, such as an FSS satellite, and each respective receive feed receives a signal from satellite, such as a DBS satellite.

Abstract translation: 天线包括具有第一轴线，第二轴线，大致平行于第一轴线的焦点区域和位于焦点区域内的焦点的反射器。 发射进给位于焦点处，并且至少一个接收进给位于焦点区域内。 发送馈送是包含整体接收馈送的双向馈送的一部分。 双向馈送发送和接收与诸如FSS卫星的第一卫星携带数字信息信号的RF信号，并且每个相应的接收馈送接收来自诸如DBS卫星的卫星的信号。

公开(公告)号：US20020097187A1

公开(公告)日：2002-07-25

申请号：US10102779

申请日：2002-03-22

Applicant: YAGI ANTENNA CO., LTD.

Inventor： Hiroaki Imaizumi ,  Koji Sakauchi ,  Shuji Hagiwara ,  Hirofumi Higuchi ,  Ryotaro Manabe

IPC: H01Q003/00 ,  H01Q013/00

CPC classification number: H01Q25/007 ,  H01Q1/247 ,  H01Q3/18 ,  H01Q5/45 ,  H01Q11/08 ,  H01Q13/065 ,  H01Q19/12 ,  H01Q19/17 ,  H01Q21/245 ,  H01Q25/00

Abstract: When a converter 14 is rotated via a rotation mechanism 17, the arrangement inclination angle of two primary radiators 15a and 15b can be adjusted in the range of 0 to 20 deg. with respect to an axis which is in parallel with the ground. Also the reception polarization angle due to probes of the primary radiators 15a and 15b can be adjusted in the range of 0 to 20 deg. while maintaining a preset difference in polarization angle among the satellites. Therefore, the arrangement inclination angle of the primary radiators 15a and 15b for respectively receiving signals from the two satellites, and the reception polarization angle in the primary radiators 15a and 15b can be simultaneously easily adjusted by rotating the converter 14 via the rotation mechanism 17.

Abstract translation: 当转换器14通过旋转机构17旋转时，两个一次辐射器15a和15b的排列倾斜角度可以在0至20度的范围内调节。 相对于与地面平行的轴线。 此外，由于一次辐射器15a和15b的探针引起的接收偏振角也可以在0至20度的范围内调节。 同时保持卫星之间偏振角的预设差异。 因此，通过旋转机构17使转换器14旋转，能够同时容易地调整分别接收来自两颗卫星的信号的一次辐射体15a，15b的配置倾斜角以及一次辐射体15a，15b的接收偏振角。

公开(公告)号：US06424312B2

公开(公告)日：2002-07-23

申请号：US09730832

申请日：2000-12-07

Applicant: Cyril Mangenot ,  Yann Cailloce ,  Jacques Maurel

Inventor： Cyril Mangenot ,  Yann Cailloce ,  Jacques Maurel

IPC: H01Q1912

CPC classification number: H01Q19/17

Abstract: The invention relates to a radiating source for transmitting and receiving, intended to be installed on board a satellite to define a radiation pattern in a terrestrial zone, said source being intended to be disposed in or near the focal plane of a reflector associated with other sources corresponding to other terrestrial zones. The source includes a plurality of radiating apertures, each of which has an efficiency at least equal to 70%, and feed means for feeding said radiating apertures. The radiating apertures and their feed means are such that the energy radiated by all of the radiating apertures is practically limited to the corresponding reflector, at least for transmission.

Abstract translation: 本发明涉及一种用于发射和接收的辐射源，旨在安装在卫星上以限定陆地区域中的辐射图，所述源旨在设置在与其他源相关联的反射器的焦平面内或附近 对应于其他陆地区域。 源包括多个辐射孔，每个辐射孔具有至少等于70％的效率，以及用于馈送所述辐射孔的馈送装置。 辐射孔及其馈送装置使得由所有辐射孔辐射的能量实际上被限制到相应的反射器，至少用于透射。

公开(公告)号：US20020018023A1

公开(公告)日：2002-02-14

申请号：US09825134

申请日：2001-04-02

Applicant: Harris Corporation

Inventor： Timothy E. Durham ,  Yves Patenaude ,  Jay Kralovec ,  Verlin Hibner

IPC: H01Q013/00

CPC classification number: H01Q15/0013 ,  H01Q1/288 ,  H01Q5/28 ,  H01Q19/17

Abstract: A composite antenna reflector architecture for improving beam-to-beam isolation in a multi-spot illuminated reflector antenna employs a plurality of annular rings surrounding a central reflective dish and having respectively different controlled reflectivity profiles. The reflectivity-tailored reflector rings alter illumination taper and reduce selected sidelobe energy, and minimize degradation in coverage performance and gain slope in the radiation profile of the antenna. A respective ring employs a frequency selective surface laminate of layers containing different elements that resonate at different frequencies spectrally spaced to provide at least one composite frequency response characteristic.

Abstract translation: 用于改善多点照射反射天线中的束到束隔离的复合天线反射器结构采用围绕中心反射盘并具有分别不同的受控反射率曲线的多个环形环。 反射率定制的反射环改变照明锥度并减少选择的旁瓣能量，并且最小化天线的辐射轮廓中的覆盖性能的降低和增益斜率。 相应的环使用包含不同元件的层的频率选择性表面层压体，所述不同元件在频谱间隔处以不同频率谐振以提供至少一个复合频率响应特性。

公开(公告)号：US20020018019A1

公开(公告)日：2002-02-14

申请号：US09874696

申请日：2001-06-05

Inventor： Henri Fourdeux ,  Ali Louzir ,  Philippe Minard

IPC: H01Q021/00

CPC classification number: H01Q21/067 ,  H01Q19/17 ,  H01Q21/065 ,  H01Q21/28 ,  H01Q25/007

Abstract: The present invention relates to a source antenna for transmitting/receiving electromagnetic waves comprising means for transmitting electromagnetic waves with longitudinal radiation operating in a first frequency band and means for receiving electromagnetic waves, characterized in that the means for receiving electromagnetic waves consist of a first array of n radiating elements operating in a second frequency band and a second array of nnull radiating elements operating in a third frequency band, the first and second arrays and the longitudinal-radiation means having a substantially common phase center and the radiating elements of the first and second arrays being arranged around the longitudinal-radiation means.

Abstract translation: 本发明涉及一种用于发送/接收电磁波的源天线，包括用于发射在第一频带中工作的纵向辐射的电磁波的装置和用于接收电磁波的装置，其特征在于，用于接收电磁波的装置包括第一阵列 在第二频带中工作的n个辐射元件和在第三频带中工作的n个辐射元件的第二阵列，第一和第二阵列和纵向辐射装置具有基本上共同的相位中心，并且第一 并且第二阵列围绕纵向辐射装置布置。

公开(公告)号：US06344832B1

公开(公告)日：2002-02-05

申请号：US09446190

申请日：2000-04-19

Applicant: Kamal Lotfy

Inventor： Kamal Lotfy

IPC: H01Q1300

CPC classification number: H01Q19/17 ,  H01P1/172 ,  H01P1/2131 ,  H01Q1/247 ,  H01Q5/45 ,  H01Q15/246

Abstract: The invention concerns a frequency converter arrangement for parabolic antennae receiving vertical and horizontal linear polarization signals, transmitted by two geostationary satellites not far from each other. The arrangement comprises two positive converter devices (5, 6) designed to receive the signal derived from a satellite, each device bearing means ensuring that the receiving antennae elements are oriented in the received signal plane and means to adapt to the different elevations of the two satellites, by rotating the converter device support. The arrangement is characterized in that the output portions (10) of the two converter devices (5, 6) are made in the form of a single-piece part (12) whereas the input portions (9) are separated and mounted selectively adjustable on the single-piece part (12), the arrangement being mounted rotating about an axis parallel to the two input portions (9).

Abstract translation: 本发明涉及一种用于抛物面天线接收垂直和水平线性极化信号的频率转换器装置，由彼此不远的两个对地静止卫星传输。 该装置包括被设计用于接收从卫星得到的信号的两个正转换器装置（5,6），每个装置承载装置确保接收天线元件在接收信号平面中定向，并且适于适应两者的不同高程 卫星，通过旋转转换器设备支持。 该装置的特征在于，两个转换器装置（5,6）的输出部分（10）制成单片式部件（12）的形式，而输入部分（9）被分离并安装在 单件部件（12），该装置围绕平行于两个输入部分（9）的轴线旋转安装。

公开(公告)号：US06236361B1

公开(公告)日：2001-05-22

申请号：US09301966

申请日：1999-04-29

Applicant: Harold A. Rosen

Inventor： Harold A. Rosen

IPC: H01Q300

CPC classification number: H01Q3/267 ,  H01Q1/288 ,  H01Q19/17

Abstract: A system and method for eliminating pointing error in a beacon tracking system due to uncontrolled differences in passive loss or in amplification of the separate signals involved in creating a pilot signal. A locally generated reference signal (30) is radiated onto a set of feed horns (14), at least three (20, 22, 24) of which are used to track a pilot signal (18). The reference signal (30) is detected and used in an automatic gain control feedback loop (44, 46, 48) to maintain equal gain on the separate feed horn channels. The equalized signal is processed (62) to produce precision tracking signals.

Abstract translation: 一种用于消除信标跟踪系统中的指向误差的系统和方法，这是由于在产生导频信号中涉及的单独信号的被动丢失或放大中的不受控制的差异。 本地产生的参考信号（30）被辐射到一组馈电喇叭（14）上，其中至少三（20,22,24）用于跟踪导频信号（18）。 在自动增益控制反馈回路（44,46,48）中检测并使用参考信号（30），以在单独的馈送喇叭通道上保持相等的增益。 处理均衡信号（62）以产生精确跟踪信号。