A Wideband Two-Way Digital Doherty Transmitter in 40nm CMOS
Beikmirza, M.R. (TU Delft Electronics)
Shen, Y. (TU Delft Electronics)
de Vreede, L.C.N. (TU Delft Electronics)
Alavi, S.M. (TU Delft Electronics)
A 40nm CMOS wideband digital Cartesian push-pull inverted Doherty operating in class-E is presented. Wideband Doherty operation is achieved over a 1.9-to-3GHz frequency band, using an off-chip power combining network. The fully digital transmitter (DTX) provides 25.3dBm peak power with a drain/DTX line-up efficiency (DE/SE) of 58.7%/44.9%, respectively, at 2.4GHz. When operated with a 160MHz 256-QAM OFDM signal, it achieves 46.1%/32.7% average DE/SE, with an ACLR and EVM better than −40.6dBc and −33.9dB, respectively, using a simple memory-less digital pre-distortion (DPD).
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digital power amplifier
Proceedings of the 2022 IEEE/MTT-S International Microwave Symposium - IMS 2022
International Microwave Symposium, 2022-06-19 → 2022-06-24, Denver, United States
IEEE MTT-S International Microwave Symposium Digest, 0149-645X, 2022-June
Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
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© 2022 M.R. Beikmirza, Y. Shen, L.C.N. de Vreede, S.M. Alavi