Microwave subsampler using cascaded cold pHEMTs

Ball, E.A. orcid.org/0000-0002-6283-5949 and Joseph, S.D. (Accepted: 2025) Microwave subsampler using cascaded cold pHEMTs. In: Proceedings of The 50th International Conference on Infrared, Millimeter, and Terahertz Waves. The 50th International Conference on Infrared, Millimeter and Terahertz Waves, 17-22 Aug 2025, Espoo, Finland. Institute of Electrical and Electronics Engineers (IEEE) (In Press)

Abstract

We propose a concept using cascaded cold pHEMTs to implement a microwave sampler for subsampling use. The MMIC concept supports slewed control voltages as well as digital square-wave control signals. As such, the control voltages could be from oscillator sources, or from logic signals that have poor fidelity caused by PCB parasitics, etc. Sampling losses of circa 14 dB have been simulated in subsampling mode with RF input at 10th harmonic of the sampling frequency

Metadata

Item Type:	Proceedings Paper
Authors/Creators:	Ball, E.A. https://orcid.org/0000-0002-6283-5949 Joseph, S.D.
Copyright, Publisher and Additional Information:	© 2025 The Author(s).
Dates:	Accepted: 23 May 2025
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 UKRI1064 APP44570 UK Research and Innovation MR/T043164/1
Depositing User:	Symplectic Sheffield
Date Deposited:	20 Jun 2025 09:36
Last Modified:	20 Jun 2025 09:36
Status:	In Press
Publisher:	Institute of Electrical and Electronics Engineers (IEEE)
Refereed:	Yes
Related URLs:	Conference
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:228086

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Microwave subsampler using cascaded cold pHEMTs

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