A 2.4 GHz fully integrated CMOS power amplifier using capacitive cross-coupling

The paper presented a 2.4GHz fully integrated CMOS power amplifier using capacitive cross-coupling, fabricated in 0.18µm CMOS. With a 3.3-V supply voltage, PAE
max
and PAE at 1dB compression point are 34.3% and 26.8%. P
1dB
, P
sat
, and PG are 25.2dBm, 27.7dBm and 26.5dB, respectively. The advantages of the proposed capacitive-cross-coupled PA are the improvement of reverse isolation and the area saving.