Radio communication apparatus

A wireless communications apparatus, comprising automatically performs impedance matching between the antenna and the radio section, thereby reducing the loss of impedance may occur, e.g., when the body of the device near the matching loss, and, in fading environment, automatic impedance matching convergence operation during reception quality is stabilized and is maintained during operation of the convergence. The wireless communication apparatus comprising: generating a radio section (3) baseband signal from a received signal; antenna and said radio section to adjust the impedance varying means impedance (2) (3); extracting a pilot signal from the baseband signal pilot signal extracting means (4); using the pilot signal extracting means (4) outputs perform channel compensation of the first channel compensating means (5); an output using a first channel compensating means (5) to determine the impedance control suitability impedance control suitability determination means (7); using impedance control proper of the output control impedance varying means (7) determining (2) the impedance control means (8); a second channel compensation pilot signal to perform channel compensation means (6); and a second channel compensation means (6) performs a demodulation operation of the output demodulation section (9).