Abstract

Modern wireless communication systems, especially orthogonal frequency-division multiplexing (OFDM) systems that have high peak-to-average power ratios (PAPR) signals, require high linearity and high power-added efficiency (PAE) in power amplifier (PA) designs. This work applies the parametric amplification method in PA designs to achieve these two goals simultaneously. A baseline Class-AB PA is designed as a reference. It has a PSAT of 11 dBm, small-signal gain of 14 dB, and peak PAE of 29% at 62 GHz. The parametric PA improves the IP 1dB from −5 dBm to −2 dBm. The PAE at −6 dB back-off is increased from 10% to 15.5% (improved by 55%), the PAE at −8 dB back-off is increased from 7% to 11% (improved by 54%), and the peak PAE is increased from 29% to 33%.

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