发明名称 |
Attenuation of microwave signals |
摘要 |
It is sometimes necessary to reduce the power of microwave transmissions, e.g. to avoid overloading a receiver or to reduce a transmitter's potential to cause interference. The invention reduces the power by inserting radiation absorbent material into the aperture of the antenna. In the preferred embodiment a membrane of absorbent plastics is stretched across the aperture of the dish reflector.
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申请公布号 |
US4786915(A) |
申请公布日期 |
1988.11.22 |
申请号 |
US19880170650 |
申请日期 |
1988.03.16 |
申请人 |
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY |
发明人 |
CARTWRIGHT, NORMAN E.;BUTCHER, MILES E. |
分类号 |
H01Q17/00;(IPC1-7):H01Q17/00 |
主分类号 |
H01Q17/00 |
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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