Patent ID: 6999786
Filing Date: 2006-02-14
Classification: H04B

Abstract:
1. A switch apparatus for switching between signal paths comprising: a diplexer having a first signal terminal forming a transmission/reception signal terminal shared by signals of at least said first, second and third frequency bands, a second signal terminal for outputting a signal of said first frequency band separated from a received signal, a third signal terminal for outputting a remaining signal after said signal of said first frequency band is separated, wherein said received signal inputted to said first signal terminal is divided between said second and third signal terminals, and transmission signals to be inputted to said second and third signal terminals are combined and outputted to said first signal terminal; a first high-frequency switch connected to said second signal terminal of said diplexer; and a second high-frequency switch connected to said third signal terminal of said diplexer, wherein said first high-frequency switch includes a plurality of switching means respectively configured with diodes for selectively switching between two signal terminals for connection to said second signal terminal of said diplexer, and said second high-frequency switch includes at least three switching means respectively configured with FETs for selectively switching between at least three signal terminals for connection to said third signal terminal of said diplexer.