S--parameter calibration procedure for multiport microwave imaging systems

descriptionPublicationkeyboard_double_arrow_right Preprint , Article , Conference object 01 Jan 2019Embargo end date: 01 Jan 2019 English Publisher:ZenodoJournal:EuCAP - 13th European Conference on Antennas and PropagationFunded by:EC | EMERALD, EC | MMAMA

Authors: Kasper, Manuel; Ragulskis, Mykolas; Gramse, Georg; Kienberger, Ferry;

doi: 10.5281/zenodo.3132478 , 10.48550/arxiv.1905.00963 , 10.5281/zenodo.3132479

arXiv: 1905.00963

S--parameter calibration procedure for multiport microwave imaging systems

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Abstract

Multitude of antennas are typically used in microwave imaging systems. Here we outline a simple and effective calibration method for multiport imaging systems. By using only one additional component, an electronic calibration module (ECal), one port is calibrated and the calibration plane is thereby moved to the antenna connector. Assuming all antennas interact with the test phantom in the same way, the one-port calibration is transferred to all other antennas. For full calibration including the transmission path between antennas, the unknown thru technique is used. This calibration procedure is simple and it can be fully automated, and no RF components are perturbed.

Funding by H2020 GA No. 764479 (Emerald) and GA No. 761036 (MMAMA)

Related Organizations

Johannes Kepler University
Johannes Kepler University
Austria
Johannes Kepler University of Linz
Austria

Keywords

Signal Processing (eess.SP), FOS: Electrical engineering, electronic engineering, information engineering, Electrical Engineering and Systems Science - Signal Processing, microwave imaging, VNA calibration, multiport

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