Thumbnail Image
Publication

Ultra-Compact mm-Wave Monolithic IC Doherty Power Amplifier for Mobile Handsets

Sajedin, M.
; 
Elfergani, Issa T.
; 
Rodriguez, Jonathan
; ; 
Fernandez-Barciela, M.
; 
Violas, M.
Publication Date
2021-09
End of Embargo
Supervisor
Keywords
MMIC, 5G, Doherty power amplifier, GaAs pHEMT, Mobile handset
Rights
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).
cb
Peer-Reviewed
Yes
Open Access status
openAccess
Accepted for publication
2021-08-26
Institution
Department
Awarded
Embargo end date
Collections
Engineering and Digital Technology Publications
Show all metadata
Files
Thumbnail Image
Published version
Adobe PDF, 4.9 MB
Thumbnail Image
AuthorAcceptedVersiontoElectronicsJournalAugust2021.pdf
Adobe PDF, 1.7 MB
Additional title
Abstract
This work develops a novel dynamic load modulation Power Amplifier (PA) circuity that can provide an optimum compromise between linearity and efficiency while covering multiple cellular frequency bands. Exploiting monolithic microwave integrated circuits (MMIC) technology, a fully integrated 1W Doherty PA architecture is proposed based on 0.1 µm AlGaAs/InGaAs Depletion- Mode (D-Mode) technology provided by the WIN Semiconductors foundry. The proposed wideband DPA incorporates the harmonic tuning Class-J mode of operation, which aims to engineer the voltage waveform via second harmonic capacitive load termination. Moreover, the applied post-matching technique not only reduces the impedance transformation ratio of the conventional DPA, but also restores its proper load modulation. The simulation results indicate that the monolithic drive load modulation PA at 4 V operation voltage delivers 44% PAE at the maximum output power of 30 dBm at the 1 dB compression point, and 34% power-added efficiency (PAE) at 6 dB power back-off (PBO). A power gain flatness of around 14 ± 0.5 dB was achieved over the frequency band of 23 GHz to 27 GHz. The compact MMIC load modulation technique developed for the 5G mobile handset occupies the die area of 3.2.
URI
http://hdl.handle.net/10454/18600
Version
Published version
Citation
Sajedin M, Elfergani I, Rodriguez J et al (2021) Ultra-Compact mm-Wave Monolithic IC Doherty Power Amplifier for Mobile Handsets. Electronics. 10(17): 2131.
Link to publisher’s version
Link to published version
Link to Version of Record
https://doi.org/10.3390/electronics10172131
Type
Article
Qualification name
Notes