Abstract
This paper describes the design of a push‐pull power amplifier (PA) with a center‐tapped transformer for transmitter applications on the 5.2‐GHz band using 0.18μm CMOS technology. The type of the proposed PA is based on a double‐ended push–pull (DEPP) configuration. DEPP has a simple construction with only transistors and transformers. The PA has reverse‐phased cascode‐connected transistors. The proposed transformer has a multilayer structure and was designed using electromagnetic field simulation. To achieve high power added efficiency (PAE), we assumed the optimized output impedance technique with a tunable impedance antenna. The PA has 13.2 dB linearity gain, 14.9 dBm 1‐dB compression point (P1dB), and 27.4% maximum PAE. © 2016 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.
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