发明名称 High-frequency composite part and wireless communications device comprising it
摘要 A high-frequency module is connected to a transmitting circuit, a receiving circuit, and an antenna to control the connections between the transmitting circuit and the antenna and between the receiving circuit and the antenna. The module includes means for controlling transmitted signals, which includes a first phase-shift circuit and a high-frequency amplifier provided between the antenna and the transmitting circuit. The high-frequency amplifier and the first phase-shift circuit are integrated into a module composed of a plurality of dielectric layers.
申请公布号 US7026887(B2) 申请公布日期 2006.04.11
申请号 US20040972004 申请日期 2004.10.25
申请人 HITACHI METALS, LTD 发明人 WATANABE MITSUHIRO;KEMMOCHI SHIGERU;TAKETA TSUYOSHI;TAI HIROYUKI;YOKOUCHI SATORU
分类号 H01P5/12;H01P1/15;H03H7/46;H04B1/52 主分类号 H01P5/12
代理机构 代理人
主权项
地址