RADIO COMMUNICATION APPARATUS

摘要

PROBLEM TO BE SOLVED: To obtain a radio communication apparatus reducing the deterioration in communication function when an HF band coil and a UHF band antenna are brought close to each other.

SOLUTION: The radio communication apparatus communicates in response to respective signals in at least two high and low frequency bands (UHF band and HF band). In this case, the radio communication apparatus is provided with: an antenna operating by a radiated electromagnetic field in the higher frequency band; a power supplying circuit which is connected between power supplying terminals in the antenna; a coil operating by induction electromagnetic field in the lower frequency band; a driving circuit which is connected between driving terminals of the coil; and an LC parallel resonance circuit which resonates at the used frequency in the higher frequency band which is inserted and connected serially in one or more position(s) in the coil.

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