Wideband reference-plane invariant method for measuring electromagnetic parameters of materials

K Chalapat, K Sarvala, J Li… - IEEE Transactions on …, 2009 - ieeexplore.ieee.org
This paper presents a simple and effective wideband method for the determination of
material properties, such as the complex index of refraction and the complex permittivity and …

Improved method for permittivity determination of dielectric samples by free-space measurements

UC Hasar, Y Kaya, H Ozturk, M Izginli… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
A new deembedding technique is proposed for relative complex permittivity determination of
dielectric materials using gated free-space measurements. Its three main features are 1) it …

De-embedding method for a sensing area characterization of planar microstrip sensors without evaluating error networks

UC Hasar, H Ozturk, H Korkmaz, V Nayyeri… - Scientific Reports, 2024 - nature.com
A de-embedding method for determining all scattering (S-) parameters (eg, characterization)
of a sensing area of planar microstrip sensors (two-port network or line) is proposed using …

Coaxial/cylindrical transition line for broadband permittivity measurement of civil engineering materials

M Adous, P Queffelec, L Laguerre - Measurement Science and …, 2006 - iopscience.iop.org
A one-port coaxial/cylindrical transition line is considered for the broadband complex
permittivity measurement of civil engineering materials. Cylindrical samples of …

Permittivity extraction of soil samples using coaxial-line measurements by a simple calibration

H Hasar, UC Hasar, H Ozturk, M Izginli… - … on Geoscience and …, 2023 - ieeexplore.ieee.org
A new microwave method is proposed for accurate determination of complex permittivity of
soil samples inserted over a holder within the Electronic Industries Association (EIA) 1-5/8” …

Accurate determination of the complex permittivity of materials with transmission reflection measurements in partially filled rectangular waveguides

JM Catala-Civera, AJ Canos… - IEEE Transactions …, 2003 - ieeexplore.ieee.org
An enhanced transmission reflection technique for the precise determination of the complex
permittivity of dielectric materials partially filling the cross section of a rectangular waveguide …

Calibration-independent and position-insensitive transmission/reflection method for permittivity measurement with one sample in coaxial line

Z Caijun, J Quanxing, J Shenhui - IEEE transactions on …, 2011 - ieeexplore.ieee.org
In recent decades, the calibration-independent methods have successfully been employed
to determine the complex permittivity of dielectric materials without the need of calibration …

Boundary effects on the determination of metamaterial parameters from normal incidence reflection and transmission measurements

S Kim, EF Kuester, CL Holloway… - … on Antennas and …, 2011 - ieeexplore.ieee.org
A method is described for the determination of the effective electromagnetic parameters of a
metamaterial based only on external measurements or simulations, taking boundary effects …

A new calibration-independent method for complex permittivity extraction of solid dielectric materials

UC Hasar - IEEE microwave and wireless components letters, 2008 - ieeexplore.ieee.org
Microwave nonresonant methods generally require some sort of calibration before
conducting the measurements. Calibration-independent nonresonant methods are very …

Self-calibrating transmission-reflection technique for constitutive parameters retrieval of materials

UC Hasar - IEEE Transactions on Microwave Theory and …, 2017 - ieeexplore.ieee.org
A self-calibrating transmission-reflection method for extraction of electromagnetic properties
of materials from waveguide measurements is proposed. It relies on three measurement …