Calibration-Free Time-Domain Free-Space Permittivity Extraction Technique

A time-domain free-space technique has been proposed to extract relative permittivity (epsilon(r)) and effective conductivity (sigma(e)) of low-loss dielectric samples using their metal- and air-backed calibration-free reflected powers. Numerical computations and 3-D electromagnetic simulations were performed to validate the method. A sensitivity analysis was carried out to examine its accuracy. Calibration-free time-domain free-space measurements over 1-12 GHz were conducted by VNA to extract epsilon(r) and sigma(e) of polyethylene and polypropylene low-loss samples.

Journal

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION

Year

2022

Volume

70

Issue

2

Pages

1565-1568

ISSN

0018-926X

eISSN

1558-2221

DOI

10.1109/TAP.2021.3121133

WoS UID

WOS:000751857700081