发明公开
EP0859428A2 Composite rooftop antenna for terrestrial and satellite reception
失效
Zusammengesetzte Dachantennefürterrestrischen-und satelliten Empfang
- 专利标题： Composite rooftop antenna for terrestrial and satellite reception
- 专利标题（中）： Zusammengesetzte Dachantennefürterrestrischen-und satelliten Empfang
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申请号： EP97121361.6申请日： 1997-12-04
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公开(公告)号： EP0859428A2公开(公告)日： 1998-08-19
- 发明人: Miller, Robert Raymond, II , Russell, Jesse Eugene , Schroeder, Robert Edward
- 申请人： AT&T Corp.
- 申请人地址： 32 Avenue of the Americas New York, NY 10013-2412 US
- 专利权人： AT&T Corp.
- 当前专利权人： AT&T Corp.
- 当前专利权人地址： 32 Avenue of the Americas New York, NY 10013-2412 US
- 代理机构： KUHNEN, WACKER & PARTNER
- 优先权： US770351 19961220
- 主分类号： H01Q21/28
- IPC分类号： H01Q21/28 ; H01Q21/20 ; H01Q9/18 ; H01Q19/17 ; H01Q19/06 ; H01Q5/00
摘要：
An antenna structure includes a plurality of vertical directed antennas mounted on an insulated cylindrical substrate. A parabolic reflecting antenna is mounted at one end of the cylindrical substrate cavity and a dielectric lens admits radiation through the cylindrical cavity to the parabolic reflector. Optical detectors are located on the cylindrical substrate periphery and exposed to optical signals through an InfraRed (IR) optical filter.
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