发明名称 |
Time-delayed directional beam phased array antenna |
摘要 |
An antenna comprising a phased array of quadrifilar helix or other multifilar antenna elements and a time-delaying feed network adapted to feed the elements. The feed network can employ a plurality of coaxial cables that physically bridge a microstrip feed circuitry to feed power signals to the elements. The cables provide an incremental time delay which is related to their physical lengths, such that replacing cables having a first set of lengths with cables having a second set of lengths functions to change the time delay and shift or steer the antenna's main beam. Alternatively, the coaxial cables may be replaced with a programmable signal processor unit adapted to introduce the time delay using signal processing techniques applied to the power signals.
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申请公布号 |
US2004135736(A1) |
申请公布日期 |
2004.07.15 |
申请号 |
US20030342581 |
申请日期 |
2003.01.14 |
申请人 |
FUND DOUGLAS EUGENE;CABLE JOHN WILLIAM;CECIL TONY MYRON |
发明人 |
FUND DOUGLAS EUGENE;CABLE JOHN WILLIAM;CECIL TONY MYRON |
分类号 |
H01Q3/26;H01Q11/08;H01Q21/00;H01Q21/06;(IPC1-7):H01Q1/36 |
主分类号 |
H01Q3/26 |
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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