Patent ID: 7398103
Filing Date: 2008-07-08
Classification: H03H,H04B,H04W,Y02D

Abstract:
1. A switching module for switching between a plurality of communication systems comprising: a laminated body having a plurality of layers, including a top layer and a bottom layer; a ground electrode located on, or near, the bottom layer; at least one SAW filter disposed on the top layer; a plurality of switches for the plurality of communication systems; a plurality of receiving terminals for the plurality of communication systems, each of the plurality of receiving terminals is connected to one of the plurality of switches; a plurality of transmitting terminals for the plurality of communication systems, each of the plurality of transmitting terminals is connected to one of the plurality of switches; and a diplexer connected between an antenna and each of the plurality of switches; wherein the at least one SAW filter is directly connected to one end of a viahole and the ground electrode is directly connected to the other end of the viahole.