Patent ID: 7151407

Claim:
A power amplifier configured for parallel connection with at least one other amplifier for combining signals output from such parallel connected amplifiers, said amplifier comprising: (a) an active input component configured to be switched by a signal input thereto to present an amplified signal constituting a low output impedance voltage source; (b) an output resonator component; and, (c) a lumped element impedance inverter connected between said input component and said output component, said impedance inverter configured for transforming said, low output impedance voltage source so as to constitute a high output impedance current source, and said high output impedance current source configured for said parallel connection; wherein negative reactive component values theoretically required by said impedance inverter are actually incorporated into pro-selected reactive components of said input and output components, and wherein said output resonator component comprises an inductor and a capacitor coupled in series, at least one of said inductor or said capacitor, or combinations thereof, incorporating a negative reactive component of said lumped element impedance inverter, said series coupled inductor and capacitor being parallel coupled to a ground reference.