Patent ID: 6998933
Filing Date: 2006-02-14
Classification: H01P,H03K

Abstract:
1. A switch for selectively providing an input signal to an output terminal, comprising: a first input terminal receiving a first input signal at a first frequency; a second input terminal receiving a second input signal at a second frequency; a switching element coupling said first input terminal and said output terminal to provide said first input signal to said output terminal in a first state and isolating said first input terminal from said output terminal in a second state; a bias line providing a control signal to said switching element to select between said first state and said second state; and an AC coupled transmission line coupled to said second input terminal and coupled between said switching element and said output terminal, said control signal being provided through said AC coupled transmission line when said switching element is in said first state to isolate said second input terminal from said output terminal and provide said first input signal to said output terminal, said second input signal being provided DC coupled to said output terminal through said AC coupled transmission line when said switching element is in said second state.