Extracting Permittivity and Permeability using the Position-Insensitive and Calibration-Independent Method on a Rectangular Waveguide

Author

• James Conrad Denemark, Air Force Institute of Technology

Date of Award

12-2024

Document Type

Thesis

Degree Name

Master of Science in Electrical Engineering

Department

Department of Electrical and Computer Engineering

First Advisor

Michael J. Havrilla, PhD

Abstract

Classic methods for extracting material characteristics require known measurements to accurately calibrate the network analyzer. Previous work demonstrated a position-insensitive and calibration-independent (PiCi) transmission/reflection method to extract a material’s permittivity. This thesis proposes a method with the same function, manipulated to use one empty measurement and then two samples of different thicknesses. The PiCi method is first adopted for rectangular waveguide which resulted in inaccurate permittivity data when compared to the calibrated solution. Once detector mismatch corrections were applied, the PiCi method produced accurate results. Using a 2-D numerical root search, permittivity and permeability material characteristics are now successfully extracted from the PiCi two-thickness method.

AFIT Designator

AFIT-ENG-MS-24-D-005

Comments

An embargo was observed for this posting.
Approved for public release, distribution unlimited. PA case number 88ABW-2026-0388.

Recommended Citation

Denemark, James Conrad, "Extracting Permittivity and Permeability using the Position-Insensitive and Calibration-Independent Method on a Rectangular Waveguide" (2024). Theses and Dissertations. 8347.
https://scholar.afit.edu/etd/8347