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2020-10-28

A Tri-Band Impedance Transformer Based Output Network for Efficient RF Power Amplifiers

By Antra Saxena and Mohammad S. Hashmi
Progress In Electromagnetics Research C, Vol. 106, 177-186, 2020
doi:10.2528/PIERC20072902

Abstract

Design of a harmonically tuned RF Power Amplifier (PA) with enhanced efficiency and gain is presented in this letter. It makes use of a tri-band impedance transformer as a two-port output network for facilitating concurrent optimum fundamental and harmonic impedances at the drain terminal. The design is augmented by analytical formulations and analysis to identify the optimal impedance matching scenario at the fundamental, second harmonic, and third harmonic. A thorough analysis reveals that the proposed PA design scheme is very simple while maintaining the performance obtained from the load-pull. A prototype operating at a frequency of 3.5 GHz is developed on RO5880 using 10W GaN HEMT. An excellent agreement between the measured and the EM simulated results validates the proposed design technique.

Citation


Antra Saxena and Mohammad S. Hashmi, "A Tri-Band Impedance Transformer Based Output Network for Efficient RF Power Amplifiers," Progress In Electromagnetics Research C, Vol. 106, 177-186, 2020.
doi:10.2528/PIERC20072902
http://www.jpier.org/PIERC/pier.php?paper=20072902

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