Dual-mode E-band mixer for 6G mmWave front-ends: simple structure with reconfigurable PT/resistive operation for optimized gain and linearity

Ali, M., Ball, E.A. orcid.org/0000-0002-6283-5949, Joseph, S.D. et al. (2 more authors) (2026) Dual-mode E-band mixer for 6G mmWave front-ends: simple structure with reconfigurable PT/resistive operation for optimized gain and linearity. In: Proceedings of 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 17-22 Aug 2025, Helsinki, Finland. Institute of Electrical and Electronics Engineers (IEEE). ISBN: 9798350378849. ISSN: 2162-2027. EISSN: 2162-2035.

Abstract

A dual-mode E-band mixer with a novel yet simple FET-based structure is designed and simulated using a 100 nm pHEMT PH10 process. The mixer employs a switchable impedance network and reconfigurable DC biasing to enable two distinct operational modes: a pump transconductance (PT) mode for higher conversion gain and a resistive mode for enhanced linearity. The results show that the mixer achieves a conversion gain of -4.2 dB in PT mode and -15.9 dB in resistive mode. In PT mode, with a 5 dBm LO drive, the input third-order intercept point (IIP3) is 1 dBm, and the input 1-dB compression point (IP1dB) is -4 dBm. In resistive mode, with a 2.6 dBm LO drive, the mixer achieves an IIP3 of 6 dBm and an IP1dB of 4 dBm. These results highlight the potential of the proposed design for 6G mmWave front-ends that require dynamic performance optimisation, such as balancing the trade-off between gain and linearity.

Metadata

Item Type:	Proceedings Paper
Authors/Creators:	Ali, M. Ball, E.A. https://orcid.org/0000-0002-6283-5949 Joseph, S.D. O'Farrell, T. Anbiyaei, M.R.
Copyright, Publisher and Additional Information:	© 2025 The Author(s). Except as otherwise noted, this author-accepted version of a conference paper published in Proceedings of 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) is made available via the University of Sheffield Research Publications and Copyright Policy under the terms of the Creative Commons Attribution 4.0 International License (CC-BY 4.0), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/
Dates:	Accepted: 23 May 2025 Published (online): 14 January 2026 Published: 14 January 2026
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Engineering (Sheffield) > School of Electrical and Electronic Engineering
Funding Information:	Funder Grant number UK Research and Innovation MR/T043164/1 DEPARTMENT FOR DIGITAL, CULTURE, MEDIA AND SPORT TS/X013529/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/R024707/1
Date Deposited:	20 Jun 2025 09:43
Last Modified:	16 Jan 2026 11:48
Status:	Published
Publisher:	Institute of Electrical and Electronics Engineers (IEEE)
Refereed:	Yes
Identification Number:	10.1109/IRMMW-THz61557.2025.11319937
Related URLs:	Conference
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:228087

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Dual-mode E-band mixer for 6G mmWave front-ends: simple structure with reconfigurable PT/resistive operation for optimized gain and linearity

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