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1. (WO2017033563) ANTENNA TUNER CONTROL CIRCUIT, FRONT-END CIRCUIT AND COMMUNICATION DEVICE

Pub. No.:    WO/2017/033563    International Application No.:    PCT/JP2016/069219
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Thu Jun 30 01:59:59 CEST 2016
IPC: H04B 1/18
H04B 1/04
H04B 1/40
Applicants: MURATA MANUFACTURING CO., LTD.
株式会社村田製作所
Inventors: ONAKA, Kengo
尾仲健吾
OBIYA, Hidenori
帯屋秀典
KURODA, Katsuhito
黒田克人
Title: ANTENNA TUNER CONTROL CIRCUIT, FRONT-END CIRCUIT AND COMMUNICATION DEVICE
Abstract:
An antenna tuner control circuit is provided with an antenna (31), and an antenna tuner (101) for adjusting the frequency characteristic of the antenna (31), and provided with a control circuit for switching the frequency characteristic of the antenna tuner (101) during a boundary time that is one unit time of communication. For example, a consistency index based on VSWR or a reception signal intensity index based on RSSI is found over multiple times of communication space time, and thereafter the antenna tuner is set to an optimum mode. Consequently, a reduction in communication throughput due to the adjustment of the antenna tuner is suppressed, and interruption of communication during the adjustment of the antenna tuner is suppressed.