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Novel oscillator for use in near-field microwave microscopy

Jones, Dafydd, Cripps, Steve ORCID:, Choi, Heungjae ORCID:, Perks, Richard ORCID:, Porch, Adrian ORCID: 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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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

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