Patent ID: 6064868
Filing Date: 2000-05-16
Classification: H03H,H04B

Abstract:
An antenna tuning controller comprising:an antenna for receiving a radio signal and outputting the received signal;a radio section for amplifying the received signal;an antenna tuner connected to the antenna and to the radio section and for matching the antenna side impedance with the radio section side impedance by varying the antenna tuner impedance according to an electric field intensity signal;an electric field intensity detector for detecting the electric field intensity of the amplified received signal from the radio section and outputting the electric field intensity signal representing the detected electric field intensity; anda controller for evaluating the electric field intensity represented by the electric field intensity signal and, in response to a particular evaluation result, determining whether the amplified signal received from the radio section is intended to be received by a particular receiver, and for controlling the matching of the antenna side impedance with the radio section side impedance upon a determination that the amplified received signal is not intended to be received.