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

Hasar U. C., ÖZTÜRK G., Kaya Y., ERTUĞRUL M.

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol.70, no.2, pp.1565-1568, 2022 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 70 Issue: 2
  • Publication Date: 2022
  • Doi Number: 10.1109/tap.2021.3121133
  • Journal Name: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Applied Science & Technology Source, Business Source Elite, Business Source Premier, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, zbMATH, Civil Engineering Abstracts
  • Page Numbers: pp.1565-1568
  • Keywords: Free-space, permittivity, reflection, lime-domain, COMPLEX PERMITTIVITY, REFLECTION
  • Ataturk University Affiliated: Yes

Abstract

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.