Kazim, J R; Ali, M Z; Al-Moathin, A; Nikbakhtnasrabadi, F; Khatri, P; Powell, M; Stanley, M; Ridler, N M; Rossi, A; Weides, M; Heidari, H; Imran, M A; Abbasi, Q H; Li, C (2023) Wireless Microwave Signal Transmission for Cryogenic Applications. In: 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI), 23-28 July 2023, Portland, OR USA.

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Abstract

Microwave wireless signal propagation in cryogenic environments has applications in radio astronomy and quantum computing. This paper demonstrates for the first time a cryogenic wireless setup which investigates the antenna-to-antenna signal transmission in Liquid Nitrogen (LN) and inside the dilution fridge. The antenna under investigation consist of a wideband antenna operating at X-band (8-12 GHz). The antenna was modelled and designed in CST MWS 2019 and fabricated on the Rogers RT/duroid 5880 substrate. The antenna performance, such as transmission response (S21) was measured at temperatures of 77K dipped in LN. The transmission coefficient results demonstrate that the signal transmission was less affected in LN and inside the dilution fridge. The results indicate that the proposed Over-The-Air (OTA) system is suitable for cryogenic applications.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	Electromagnetics > RF and Microwave
Divisions:	Electromagnetic & Electrochemical Technologies
Identification number/DOI:	10.1109/USNC-URSI52151.2023.10237549
Last Modified:	20 Nov 2023 09:48
URI:	https://eprintspublications.npl.co.uk/id/eprint/9870