Patent ID: 7610060

Claim:
A mobile wireless communication terminal comprising: a first antenna; a second antenna; a signal-level detector which detects a level of a signal having been transmitted from said second antenna and having been received through said first antenna; a matching unit which matches said first antenna by selecting a matching constant of said first antenna to optimize said signal-level detected by said signal-level detector, said matching unit selects a matching constant ensuring an optimal signal-level, among signal-levels detected by said signal-level detector in accordance with each of a plurality of matching constants; and a memory storing both reference signal-levels detected by said signal-level detector when said matching constant is set equal to each of predetermined reference constants, and matching constants selected by said matching unit immediately before and immediately after said reference signal-levels are detected, each of said reference signal-levels being in correlation with each of said matching constants in said memory, wherein said matching unit selects a matching constant in correlation with a newly detected reference signal-level in accordance with the correlation stored in said memory between said reference signal-levels and said matching constants.