发明名称 |
Multiple frequency band, multiple beam microwave antenna system |
摘要 |
A single microwave-reflective antenna "dish" can be used in combination with a plurality of multiple-beam microwave feed arrays to generate or receive multiple-beam-path microwave radiation in several different frequency bands. Each of the feed arrays may operate in a discrete band of frequencies, with the combined radiations of all the arrays illuminating the reflector along a single axis. The optical system is based on the Newtonian model, such that the radiations from several arrays located off the principal axis may be combined by corresponding frequency-sensitive reflective surfaces located on the principal axis. Each of these reflective surfaces serves to direct the radiations from a single feed array toward the reflective antenna, and reciprocally, to direct radiation from the antenna to the associated feed array. By using frequency-sensitive surfaces as reflectors, a number of feed arrays can be positioned along the principal axis, the associated reflectors being reflective only at the frequency of the feed array concerned, and transparent at other frequencies.
|
申请公布号 |
US4342036(A) |
申请公布日期 |
1982.07.27 |
申请号 |
US19800220866 |
申请日期 |
1980.12.29 |
申请人 |
FORD AEROSPACE & COMMUNICATIONS CORPORATION |
发明人 |
SCOTT, WILLIAM G.;LUH, HOWARD H. |
分类号 |
H01Q5/00;H01Q15/00;(IPC1-7):H01Q21/00 |
主分类号 |
H01Q5/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|