Title :
A class-B push-pull power amplifier based on an extended resonance technique
Author :
Jiang, Xin ; Martin, Adam L. ; Mortazawi, Amir
Author_Institution :
Electr. Eng. & Comput. Sci. Dept., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
A class B push-pull power amplifier based on an extended resonance power combining technique is presented. In this design, advantages of push-pull power amplifier, such as doubling power capability and reduced common lead effects, have been achieved with a simple and compact circuit topology. The measured power combining efficiency (PCE) is 93% with 1-dB bandwidth of 12.6% at 1.75 GHz. The measured output power at 1-dB compression is 30 dBm with power added efficiency (PAE) of 59%.
Keywords :
MESFET integrated circuits; UHF integrated circuits; UHF power amplifiers; differential amplifiers; network topology; power combiners; 1.75 GHz; T-shaped network; class B push-pull power amplifier; doubling power capability; extended resonance power combining; large-signal gain; reduced common lead effects; simple compact circuit topology; transmission line circuit approach; Circuit topology; Delay; Distributed parameter circuits; Impedance matching; Linearity; Power amplifiers; Power measurement; Power transmission lines; Radiofrequency amplifiers; Resonance;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2003.820642
