Abstract
This letter presents a novel compact distributed power amplifier (DPA) implemented in a 0.18-μm CMOS technology. Two three-stage DAs are combined with their input artificial transmission lines (ATLs) shared to work as a preamplifier for broadband impedance matching and gain improvement, while two four-stage DAs are combined with their output ATLs shared to work as a medium-power amplifier for high output power in a wide frequency band. Measurement results show that the DPA provides 11.9-dB average associated gain from 1 to 23.8 GHz. The output power at 1-dB output compression point (OP 1 dB ) is more than 8.9 dBm over the frequency of 2-22 GHz, and the peak power-added efficiency is 10% with the OP 1 dB of 14.5 dBm.
Published Version
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