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Compact N-Way Doherty Power Combiners for mm-wave 5G Transmitters

Conference Paper (2022)
Author(s)

Anil Kumaran (TU Delft - Electronics)

Hossein Mashad Nemati (Huawei Technologies)

Leo C.N. de Vreede (TU Delft - Electronics)

Morteza S. Alavi (TU Delft - Electronics)

Research Group
Electronics
DOI related publication
https://doi.org/10.1109/ISCAS48785.2022.9937619 Final published version
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Publication Year
2022
Language
English
Research Group
Electronics
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.
Pages (from-to)
438-442
ISBN (print)
978-1-6654-8486-2
ISBN (electronic)
978-1-6654-8485-5
Event
2022 IEEE International Symposium on Circuits and Systems (ISCAS) (2022-05-27 - 2022-06-01), Austin, United States
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Abstract

This paper presents a design procedure for compact lumped-element 3-/4-/5-way Doherty power combiners suitable for mm-wave 5G transmitters. Among them, the 3-way Doherty power combiner is favored due to its low complexity, compact layout, and average drain efficiency at 12 dB power back-off (PBO) when implemented using lossy lumped elements. Based on the metal stack of a 40nm CMOS process, a 3-way Doherty power combiner can provide a simulated passive efficiency of more than 60% at 12 dB PBO and a 10% drain-efficiency bandwidth $(BW_{\mathrm{D}\mathrm{E}10\%})/3\mathrm{d}\mathrm{B}$ power bandwidth $(BW_{3\mathrm{d}\mathrm{B}})$ of 8/15 GHz at 30 GHz.

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