Patent ID: 6937096

Claim:
A switched-mode power amplifier configured for integrally amplifying and combining a plurality of analog phase modulated signals input thereto, said amplifier comprising: (a) an input component for each of said plurality of analog phase modulated input signals wherein each said input component comprises at least one active device configured to be alternately switched by-said by an analog phase modulated input signal to present an amplified signal corresponding to said analog phase modulated input signal, said amplified signal constituting a low output impedance voltage source; (b) an output resonator component; and, (c) an impedance inverter between each said input component and said resonator component, said impedance inverter configured for transforming said low output impedance voltage source to a high output impedance current source, wherein said high output impedance sources are combined in parallel before being passed to said resonator component; wherein said impedance inverter comprises a lumped element equivalent component to a quarter-wavelength transmission line: wherein said lumped element equivalent component comprises two or more of a series inductor, a series negative inductor, a shunt-to-ground inductor, a shunt-to-ground negative inductor, a series capacitor, a series negative capacitor, a shunt-to-ground capacitor, and a shunt-to-ground negative capacitor.