A 24 GHz CMOS power amplifier with successive IM2 feed-forward IMD3 cancellation
Journal
2015 IEEE MTT-S International Microwave Symposium, IMS 2015
Date Issued
2015
Author(s)
Abstract
This paper demonstrates a successive second-order intermodulation feed-forward cancelling path, which can reduce the third-order intermodulation distortion (IMD3) of a 24 GHz cascode power amplifier (PA) effectively. By adopting this technique, the Psat, OP1dB, and associated PAE are 16.6 dBm, 14.6 dBm, and 12.6%, respectively. The sweet-spot locates at 5 dBm output power with 20 dB IMD3 reduction. The Pout with the IMD3 better than -40 dBc is 7.9 dBm which is 3.7 dB improvement compared with the PA with turn-off auxiliary path. © 2015 IEEE.
Event(s)
IEEE MTT-S International Microwave Symposium, IMS 2015
Subjects
feed-forward; IMD; Power amplifiers
Other Subjects
Cascode amplifiers; CMOS integrated circuits; Intermodulation; Cascode; CMOS power amplifiers; Feed forward; Output power; Second order intermodulation; Sweet spot; Third order intermodulation distortion; Turn offs; Power amplifiers
Type
conference paper