Title
A Wideband Two-Way Digital Doherty Transmitter in 40nm CMOS
Author
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) 
Date
2022
Abstract
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).
Subject
Cartesian, class-E
Doherty
efficient
wideband
digital power amplifier
RF-DAC
DPD
DTX
Balun
CMOS
To reference this document use:
http://resolver.tudelft.nl/uuid:60d41ba1-b1f8-4e18-a460-29632ca26ead
DOI
https://doi.org/10.1109/IMS37962.2022.9865506
Publisher
IEEE, Danvers
Embargo date
2023-07-01
ISBN
978-1-6654-9614-8
Source
Proceedings of the 2022 IEEE/MTT-S International Microwave Symposium - IMS 2022
Event
2022 IEEE/MTT-S
International Microwave Symposium, 2022-06-19 → 2022-06-24, Denver, United States
Series
IEEE MTT-S International Microwave Symposium Digest, 0149-645X, 2022-June
Bibliographical note
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.
Part of collection
Institutional Repository
Document type
conference paper
Rights
© 2022 M.R. Beikmirza, Y. Shen, L.C.N. de Vreede, S.M. Alavi