发明授权
US4728961A Electromagnetic wave spatial filter with circular polarization and a
Cassegrain antenna comprising such a filter
失效
具有圆极化的电磁波空间滤波器和包括这种滤波器的卡塞格伦天线
- 专利标题: Electromagnetic wave spatial filter with circular polarization and a Cassegrain antenna comprising such a filter
- 专利标题(中): 具有圆极化的电磁波空间滤波器和包括这种滤波器的卡塞格伦天线
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申请号: US913127申请日: 1986-09-29
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公开(公告)号: US4728961A公开(公告)日: 1988-03-01
- 发明人: Patrice Bossuet , Francois Gautier
- 申请人: Patrice Bossuet , Francois Gautier
- 申请人地址: FRX Paris
- 专利权人: Thomson-CSF
- 当前专利权人: Thomson-CSF
- 当前专利权人地址: FRX Paris
- 优先权: FRX8301451 19830131
- 主分类号: H01Q15/12
- IPC分类号: H01Q15/12 ; H01Q19/195 ; H01Q19/00
摘要:
A spatial filter is provided for electromagnetic waves with circular polarization comprising three parallel conducting networks, the central network being totally reflecting for a rectilinear polarization of given direction and having a non zero reflection coefficient for a rectilinear polarization having a direction perpendicular to the preceding one.
公开/授权文献
- US06085183A Intelligent computerized control system 公开/授权日:2000-07-04
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