发明名称 |
METHOD AND APPARATUS FOR QUADRIFILAR ANTENNA WITH OPEN CIRCUIT ELEMENT TERMINATIONS |
摘要 |
<p>A quadrifilar antenna having helical windings is fed by a phase shift feed network, each winding having an open circuit termination element, the phase shift feeding network having forward directional phase shift paths from a feed input to phase shift feed output ports, and having a first reverse directional transmission path from one or more of the phase shift feed output ports back to a first isolation port, and a second reverse directional transmission path from another one or more of the phase shift feed output ports back to a second isolation port, the first and second isolation ports isolated from the forward directional phase shift paths, and a differential termination impedance, floating from ground, connected the first and second isolation ports. Optionally, the differential termination impedance is frequency selective.</p> |
申请公布号 |
WO2008147465(A2) |
申请公布日期 |
2008.12.04 |
申请号 |
WO2007US87011 |
申请日期 |
2007.12.10 |
申请人 |
MAXTENA, INC;LLCUL, STANISLAV;MARKS, JEREMY;STUTZMAN, WARREN |
发明人 |
LLCUL, STANISLAV;MARKS, JEREMY;STUTZMAN, WARREN |
分类号 |
G01R29/08;H01Q1/36;H01Q21/00 |
主分类号 |
G01R29/08 |
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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