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专利名称：Matching apparatus发明人：Nobuo Hareyama申请号：US09934403申请日：20010821公开号：US06538506B2公开日：20030325
专利附图：
摘要：A matching apparatus for matching impedances of a power amplifier and anantenna of a terminal apparatus in which transmission power control (TPC) is carried outbetween a base station and a portable wireless telephone set. The matching apparatuscan transmit output power at excellent output efficiency regardless of the magnitude of
the power of transmission output. A matching circuit provided between a power amplifierand a load includes a switching device, and impedances are switched and controlled bythe switching device such that the impedances are suited to the transmission outputpower required for TPC and are properly matched.
申请人：SONY CORPORATION
代理人：Jay H. Maioli
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