A 10W broadband power amplifier for base station

This paper presents the design of a broadband power amplifier with high-efficiency using silicon LDMOSFETs. With comparing frequency response of single LC matching network and two-stage one, a multiple LC matching networks composed of micro-strip lines and capacitors were adopted to enhance the bandwidth. A broadband power amplifier was implemented based on a packaged Si-LDMOS power transistor, and a saturated output power of 15 W and power gain of 14.5 dB at 1-dB compression point with maximum power-added efficiency (PAE) of 50% are demonstrated from 1.8GHz to 2.0GHz in this work.