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|1. (WO2017033563) ANTENNA TUNER CONTROL CIRCUIT, FRONT-END CIRCUIT AND COMMUNICATION DEVICE|
|Applicants:||MURATA MANUFACTURING CO., LTD.
|Title:||ANTENNA TUNER CONTROL CIRCUIT, FRONT-END CIRCUIT AND COMMUNICATION DEVICE|
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.