This work evaluates a sub-calibration method for a multi-port microwave imaging scanner. This decreases the complexity of a conventional full n-port calibration, albeit inserting uncertainties. The approach involves a combined 2-port full standard calibration along with a multi-port extension. It addresses systematic errors and reduces the impact of losses and phase shifts introduced by the multiplexing component of a microwave scanner, normally interfacing the 2-port transceiving stage with the multiple radiating elements. The analysis examines the calibration assumptions and validates them on a microwave scanner utilizing a 2-port vector network analyzer and a 2× 22 solid-state switching matrix. Repeatability and stability tests confirm the calibration's reliability, effectiveness, and permissible effect on the imaging retrieval capabilities.

Assessment of Extending a Two-Port Calibration to a Multi-Port Microwave Scanner / Gugliermino, M.; Rodriguez-Duarte, D. O.; Origlia, C.; Vasquez, J. A. Tobon; Scapaticci, R.; Crocco, L.; Vipiana, F.. - (2025), pp. 1-3. (Intervento presentato al convegno 19th European Conference on Antennas and Propagation, EuCAP 2025 tenutosi a Stockholm (Swe) nel 30 March 2025 - 04 April 2025) [10.23919/eucap63536.2025.10999292].

Assessment of Extending a Two-Port Calibration to a Multi-Port Microwave Scanner

Gugliermino, M.;Rodriguez-Duarte, D. O.;Origlia, C.;Crocco, L.;Vipiana, F.
2025

Abstract

This work evaluates a sub-calibration method for a multi-port microwave imaging scanner. This decreases the complexity of a conventional full n-port calibration, albeit inserting uncertainties. The approach involves a combined 2-port full standard calibration along with a multi-port extension. It addresses systematic errors and reduces the impact of losses and phase shifts introduced by the multiplexing component of a microwave scanner, normally interfacing the 2-port transceiving stage with the multiple radiating elements. The analysis examines the calibration assumptions and validates them on a microwave scanner utilizing a 2-port vector network analyzer and a 2× 22 solid-state switching matrix. Repeatability and stability tests confirm the calibration's reliability, effectiveness, and permissible effect on the imaging retrieval capabilities.
2025
978-88-31299-10-7
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/3002856