发明名称 |
Reflector antenna having varying reflectivity surface that provides selective sidelobe reduction |
摘要 |
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.
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申请公布号 |
US2002018023(A1) |
申请公布日期 |
2002.02.14 |
申请号 |
US20010825134 |
申请日期 |
2001.04.02 |
申请人 |
HARRIS CORPORATION |
发明人 |
DURHAM TIMOTHY E.;PATENAUDE YVES;KRALOVEC JAY;HIBNER VERLIN |
分类号 |
H01Q1/28;H01Q5/00;H01Q15/00;H01Q19/17;(IPC1-7):H01Q13/00 |
主分类号 |
H01Q1/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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