发明名称 |
Eight-element anti-jam aircraft GPS antennas |
摘要 |
A compact aircraft antenna for reception of GPS signals includes eight elements to provide eight antenna patterns usable for anti-jam signal processing. Four bent monopole elements are configured with vertical portions and horizontal inward-extending portions. The bent monopole elements are arranged for multimode excitation to provide a primary progressive phase omnidirectional right-hand circularly-polarized antenna pattern for basic signal GPS signal reception. Multimode excitation of the bent monopoles also provides omnidirectional left-hand circularly-polarized, uniform phase omnidirectional, and clover leaf auxiliary antenna patterns. Four individual slot element figure-eight type auxiliary antenna patterns are also provided. With availability of these primary and auxiliary patterns, adaptive type anti-jam processing can be employed to actively provide reduced-gain antenna pattern notches or nulls at incident angles of interference or jamming signals.
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申请公布号 |
US6618016(B1) |
申请公布日期 |
2003.09.09 |
申请号 |
US20010789467 |
申请日期 |
2001.02.21 |
申请人 |
BAE SYSTEMS AEROSPACE INC. |
发明人 |
HANNAN PETER W.;LOPEZ ALFRED R.;KUMPFBECK RICHARD J. |
分类号 |
H01Q1/28;H01Q3/26;H01Q9/26;H01Q9/28;H01Q13/10;H01Q21/24;H01Q21/26;H01Q21/29;(IPC1-7):H01Q1/28 |
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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