Patent ID: 7839234

Claim:
A switching module comprising: a first harmonic phase tuning filter coupled to a first input of an RF switch; said first harmonic phase tuning filter including an input section comprising a T-type LC filter and an output section; said first harmonic phase tuning filter configured to provide an output impedance that substantially matches an input impedance of said RF switch at approximately a fundamental frequency; wherein said output section is tuned to provide a selected impedance at approximately a harmonic frequency generated by said RF switch; wherein said T-type LC filter comprises first and second series legs and a shunt leg coupled between said first and second series legs in a shunt configuration, said shunt leg comprising a first inductor coupled in series with a first capacitor; wherein said second series leg comprises a first parallel LC circuit and is tuned to provide a high impedance barrier at approximately said harmonic frequency; and wherein said output section includes an output terminal coupled to said first input of said RF switch, and a shunt capacitor directly coupled to said output terminal; wherein said selected impedance causes substantially an open circuit at approximately said harmonic frequency.