Patent ID: 6927647

Claim:
An RF switch comprising: a first transformer having an input port for receiving an RF input signal, and an output port for providing said RF input signal; a first output port biasing circuit, electrically coupled to said transformer, for receiving said RF input signal, and responsive to a first output port biasing circuit control signal, for selectively operating said first output port biasing circuit in one of either a biased condition or an unbiased condition, for providing said RF input signal to a first output port in said biased condition, and for providing a high impedance to said output port in said unbiased condition; and a second output port biasing circuit, electrically coupled to said transformer for receiving said RF input signal, and responsive to a second output port biasing circuit control signal, for selectively operating said second output port biasing circuit in one of either a biased condition or an unbiased condition, for providing said RF input signal to a second output port in said biased condition, and for providing a high impedance to said output port in said unbiased condition wherein said each of first and second output port biasing circuits include a variable resistive biasing element through which said RF signal does not flow.