发明名称 Quadrature hybrid low loss directional coupler
摘要 A coupling device defined by an RF circuit board having a cavity formed therein and a plurality of conductive traces and a ground plane, a coupler board having opposites sides and conductive traces, and first and, second metal shields. When assembled, the coupler board is supported by the RF circuit board, and cavities are formed on opposite sides of the coupler board by the first and second metal shields.
申请公布号 US6956449(B2) 申请公布日期 2005.10.18
申请号 US20030351931 申请日期 2003.01.27
申请人 ANDREW CORPORATION 发明人 SNYDER ROBERT F.;HILBERT MARK A.
分类号 H01P5/18;H05K1/02;H05K1/14;(IPC1-7):H01P3/08 主分类号 H01P5/18
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