RADIO COMMUNICATION DEVICE AND CIRCUIT FOR RADIO COMMUNICATION

摘要

PROBLEM TO BE SOLVED: To provide a radio communication device capable of transmitting and receiving high-quality voice/data by preventing mixing of noise generated from a power amplifier into a power-supply line in a transmission circuit.SOLUTION: A radio communication device includes: a PA 31 (first amplifier) amplifying a transmission signal; a transmission circuit 37 having circuit elements including an inductor and a capacitor, and processing the transmission signal amplified by the PA 31; an antenna 13 transmitting the transmission signal processed by the transmission circuit 37; and a power supply 45 supplying power to the PA 31. The power supply 45 is connected between an output of the transmission circuit 37 and the antenna 13, and power is supplied to the PA 31 via the circuit elements.