Patent ID: 7528674

Claim:
A mobile radio apparatus for a radio communication, comprising an antenna; a signal processing section for processing a signal; a matching circuit for matching an impedance between said antenna and said signal processing section, the matching circuit being connected between said antenna and said signal processing section, and having a variable load value; a control section for controlling the load value of said matching circuit; and a storage section for storing information on the load value of said matching circuit as initial load value information, corresponding to a use situation of said mobile radio apparatus, said control section includes initial control means for evaluating said initial load value information stored in said storage section upon starting control of said matching circuit, and if there is initial load value information for providing impedance matching, for controlling said matching circuit so as to have a load value corresponding to this initial load value information; and if there is no initial load value information for providing the impedance matching, matched load value deriving means for deriving matched load value information which is information on the load value for providing the impedance matching, using said initial load value information stored in said storage section, and controlling said matching circuit so as to have a load value corresponding to said derived matched load value information.