Novel oscillator for use in near-field microwave microscopy

Jones, Dafydd, Cripps, Steve ORCID: https://orcid.org/0000-0002-2258-951X, Choi, Heungjae ORCID: https://orcid.org/0000-0003-1108-293X, Perks, Richard ORCID: https://orcid.org/0000-0003-0873-0537, Porch, Adrian ORCID: https://orcid.org/0000-0001-5293-8883 and Brown, Phill 2024. Novel oscillator for use in near-field microwave microscopy. Presented at: Asia-Pacific Microwave Conference (APMC), 05-08 December 2023. Proceedings 2023 Asia-Pacific Microwave Conference (APMC). IEEE, pp. 829-831. 10.1109/APMC57107.2023.10439775

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Abstract

This paper presents a near-field scanning microscope hardware embodiment using a high-speed, low-cost oscillator circuit, comprising of an RF amplifier with positive feedback. This is compared to a conventional configuration of a vector network analyser with both the measured frequency and constant frequency modes for height measurement of a metal surface. The constant frequency mode achieved similar results but with half the sampling time.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Published Online
Status:	Published
Schools:	Engineering
Publisher:	IEEE
ISBN:	978-1-6654-9418-2
Last Modified:	19 Mar 2024 10:15
URI:	https://orca.cardiff.ac.uk/id/eprint/166846

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