OPTIMIZATION OF OUTPUT MATCHING NETWORK FOR CLASS F POWER AMPLIFIER ACCORDING TO ENVELOPE IN THE ENVELOPE ELIMINATION AND RESTORATION TRANSMITTER

초록

This article presents the design and optimization of output matching network according to envelope for class F power amplifier (PA), which is to apply to envelope elimination and restoration (EER) transmitter. In this article, to increase the PAE of class F PA, which applies to EER transmitter, the varactor diode has been used on output matching network. As envelope changes, it optimizes constitution of harmonic trap that is short circuit in second-harmonic and is open circuit in third-harmonic. When drain voltage changes from 25 V to 30 V. some percentage is improved in the PAE. (C) 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1890-1893,2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25335

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