Title :
High efficiency power amplification for microwave and millimeter frequencies
Author :
Kopp, W.S. ; Pritchett, S.D.
Author_Institution :
Texas Instrum. Inc., Dallas, TX, USA
Abstract :
A novel technique for realizing high-efficiency operation of power amplifiers at microwave frequencies is demonstrated. This approach features third-harmonic-peaking Class-F amplifier operation. A novel third-harmonic-peaking circuit using drain-source capacitance in conjunction with a series LC resonant circuit is used to provide maximum power-added efficiency. Simulation data indicate that this amplifier provides an 8% improvement over the conventional Class-B approach at X-band.<>
Keywords :
microwave amplifiers; power amplifiers; solid-state microwave circuits; X-band; drain-source capacitance; high-efficiency operation; microwave frequencies; millimeter frequencies; power amplifiers; power-added efficiency; series LC resonant circuit; third-harmonic-peaking Class-F amplifier operation; Circuit optimization; Circuit simulation; Equations; FETs; Frequency; MIM capacitors; Power system harmonics; Power transmission lines; RLC circuits; Resonance;
Conference_Titel :
Microwave Symposium Digest, 1989., IEEE MTT-S International
Conference_Location :
Long Beach, CA, USA
DOI :
10.1109/MWSYM.1989.38857
