Patent ID: 7653360
Filing Date: 2010-01-26
Classification: H03H,H04B

Abstract:
1. A high-frequency composite component comprising: a switch for selectively switching a signal path between an antenna terminal and a transmission-side input terminal and a signal path between the antenna and a reception-side balanced output terminal; an LC filter including an inductor and capacitors disposed between the antenna terminal and the transmission-side input terminal; a surface acoustic wave filter disposed between the switch and the reception-side balanced output terminal; and a matching element including an inductor and capacitors disposed between the surface acoustic wave filter and the reception-side balanced output terminal; wherein the switch, the LC filter, the surface acoustic wave filter, and the matching element are integrated in a laminated block including a plurality of laminated dielectric layers; and the surface acoustic wave filter is a balanced-type surface acoustic wave filter having balanced output ports, the inductor of the matching element is connected in parallel between the balanced output ports, and the capacitors of the matching element are connected in series to the balanced output ports.