发明名称 Portable radio equipment capable of receiving signals of multiple frequency bands
摘要 A portable radio equipment using multiple frequency bands for communication is provided with a rod-shaped first antenna which can be extended or contracted. A second antenna used for a second frequency band is built. The first antenna is independently matched in one frequency band by a matching circuit, it can be matched when the first antenna is housed and when it is extended.
申请公布号 US2003048227(A1) 申请公布日期 2003.03.13
申请号 US20020223352 申请日期 2002.08.20
申请人 NEC CORPORATION 发明人 NAKAMURA SHINYA
分类号 H01Q3/24;H01Q1/10;H01Q1/24;H01Q1/38;H01Q5/00;H01Q13/08;H04B1/38;H04M1/02;(IPC1-7):H01Q1/24 主分类号 H01Q3/24
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