Antenna circuit and wireless communication device
作者： Masaru Kanazawa , Naoki Okazaki
DOI:
关键词: Antenna rotator 、 Control unit 、 Reconfigurable antenna 、 Antenna tuner 、 Electronic circuit 、 Electronic engineering 、 Antenna feed 、 Antenna (radio) 、 Cellular repeater 、 Engineering
摘要: The present invention relates to an antenna circuit that can achieve optimal matching according external environment of without interrupting communication in wireless transmission and reception. a cellular phone is provided with plurality circuits between transmitting unit or receiving the antenna. A control detects operating conditions such as waiting mode, normal voice call mode hands-free Each has impedance optimize respective conditions.
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