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1. 发明授权

US5398035A Satellite-tracking millimeter-wave reflector antenna system for mobile satellite-tracking 失效
标题翻译：用于移动卫星跟踪的卫星跟踪毫米波反射器天线系统
公开(公告)号：US5398035A
公开(公告)日：1995-03-14
申请号：US999794
申请日：1992-11-30
申请人： Arthur C. Densmore , Vahraz Jamnejad , Kenneth E. Woo
发明人： Arthur C. Densmore , Vahraz Jamnejad , Kenneth E. Woo
IPC分类号： H01Q1/32 , H01Q3/04 , H01Q19/13 , H01Q19/12
CPC分类号： H01Q1/3275 , H01Q19/132 , H01Q3/04
摘要： A miniature dual-band two-way mobile satellite-tracking antenna system mounted on a movable vehicle includes a miniature parabolic reflector dish having an elliptical aperture with major and minor elliptical axes aligned horizontally and vertically, respectively, to maximize azimuthal directionality and minimize elevational directionality to an extent corresponding to expected pitch excursions of the movable ground vehicle. A feed-horn has a back end and an open front end facing the reflector dish and has vertical side walls opening out from the back end to the front end at a lesser horn angle and horizontal top and bottom walls opening out from the back end to the front end at a greater horn angle. An RF circuit couples two different signal bands between the feed-horn and the user. An antenna attitude controller maintains an antenna azimuth direction relative to the satellite by rotating it in azimuth in response to sensed yaw motions of the movable ground vehicle so as to compensate for the yaw motions to within a pointing error angle. The controller sinusoidally dithers the antenna through a small azimuth dither angle greater than the pointing error angle while sensing a signal from the satellite received at the reflector dish, and deduces the pointing angle error from dither-induced fluctuations in the received signal.
摘要翻译：安装在可移动车辆上的微型双频双向移动卫星跟踪天线系统包括具有椭圆形孔径的小型抛物面反射器皿，其具有分别水平和垂直对准的主椭圆轴和次椭圆轴，以最大化方位角方向性并最小化方向性在一定程度上对应于可移动地面车辆的预期俯仰偏移。进料喇叭具有后端和面向反射器盘的敞开的前端，并且具有从后端向前端开放的垂直侧壁，角度较小，水平顶壁和底壁从后端开口至前端角度较大。 RF电路在馈电喇叭和用户之间耦合两个不同的信号频带。天线姿态控制器通过响应于感测到的可移动地面车辆的偏航运动而以方位角旋转来维持天线方位角，以便将偏航运动补偿到指向误差角内。控制器在感测来自在反射器盘处接收到的卫星的信号的同时，通过比指向误差角小的方位角抖动角度正弦地抖动天线，并且从接收信号中的抖动引起的波动推导出指向角误差。

2. 再颁专利

USRE37218E1 Satellite-tracking millimeter-wave reflector antenna system for mobile satellite-tracking 失效
标题翻译：用于移动卫星跟踪的卫星跟踪毫米波反射器天线系统
公开(公告)号：USRE37218E1
公开(公告)日：2001-06-12
申请号：US08613739
申请日：1996-02-15
申请人： Arthur C. Densmore , Vahraz Jamnejad , Kenneth E. Woo
发明人： Arthur C. Densmore , Vahraz Jamnejad , Kenneth E. Woo
IPC分类号： H01Q1912
CPC分类号： H01Q1/3275 , H01Q3/04 , H01Q19/132
摘要： A miniature dual-band two-way mobile satellite-tracking antenna system mounted on a movable vehicle includes a miniature parabolic reflector dish having an elliptical aperture with major and minor elliptical axes aligned horizontally and vertically, respectively, to maximize azimuthal directionality and minimize elevational directionality to an extent corresponding to expected pitch excursions of the movable ground vehicle. A feed-horn has a back end and an open front end facing the reflector dish and has vertical side walls opening out from the back end to the front end at a lesser horn angle and horizontal top and bottom walls opening out from the back end to the front end at a greater horn angle. An RF circuit couples two different signal bands between the feed-horn and the user. An antenna attitude controller maintains an antenna azimuth direction relative to the satellite by rotating it in azimuth in response to sensed yaw motions of the movable ground vehicle so as to compensate for the yaw motions to within a pointing error angle. The controller sinusoidally dithers the antenna through a small azimuth dither angle greater than the pointing error angle while sensing a signal from the satellite received at the reflector dish, and deduces the pointing angle error from dither-induced fluctuations in the received signal.
摘要翻译：安装在可移动车辆上的微型双频双向移动卫星跟踪天线系统包括具有椭圆形孔径的小型抛物面反射器皿，其具有分别水平和垂直地对准的主椭圆轴和次椭圆轴，以最大化方位角方向性并最小化高程方向性在一定程度上对应于可移动地面车辆的预期俯仰偏移。进料喇叭具有后端和面向反射器盘的敞开的前端，并且具有从后端向前端开放的垂直侧壁，角度较小，水平顶壁和底壁从后端开口至前端角度较大。 RF电路在馈电喇叭和用户之间耦合两个不同的信号频带。天线姿态控制器通过响应于感测到的可移动地面车辆的偏航运动而以方位角旋转来维持天线方位角，以便将偏航运动补偿到指向误差角内。控制器在感测来自在反射器盘处接收到的卫星的信号的同时，通过比指向误差角小的方位角抖动角度正弦地抖动天线，并且从接收信号中的抖动引起的波动推导出指向角误差。

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