In an antenna matching circuit including a parallel resonant section connected to a radiation element constituting an antenna, the parallel resonant section includes a series resonant portion composed of an inductance component and a capacitance component. The series resonant portion realizes antenna...http://www.google.de/patents/US7088307?utm_source=gb-gplus-sharePatent US7088307 - Antenna matching circuit, mobile communication device including antenna matching circuit, and dielectric antenna including antenna matching circuit
