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60 GHz 90nm CMOS wideband neutralized PA with 23dB gain and 20% PAE

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3 Author(s)
Cohen, E. ; Mobile Wireless Group, Intel Haifa, Haifa, Israel ; Degani, O. ; Ritter, D.

This paper presents a 60GHz PA based on differential cross coupled (CC) transformer design. The 3-stage PA, fabricated in 90nm CMOS, achieves a 23dB gain with integrated baluns, maximum power added efficiency (PAE) of 19.5%, Psat of 9.5dBm with a 12GHz BW and 0.05mm2 chip size. The paper shows the advantages of transformers and MOScap neutralization feedback for creating a state-of-the-art wideband efficient PA. An analysis of PA linearity is presented to reach record measured efficiency value of 7% at 4dB power backoff from P1dB.

Published in:

Microwaves, Communications, Antennas and Electronics Systems (COMCAS), 2011 IEEE International Conference on

Date of Conference:

7-9 Nov. 2011