A review on through-wall communications: Wall characterization, applications, technologies, and prospects

H Jamshidi-Zarmehri, A Akbari, M Labadlia… - IEEE …, 2023 - ieeexplore.ieee.org
This paper underscores the paramount significance of through-wall communications by
providing a comprehensive exploration of pivotal aspects like wall characterization, relevant …

An effective metasurface-based linear and circular polarization converter for C-and X-band applications

F Tutar, G Ozturk - Optical Materials, 2022 - Elsevier
In this study, a reflection-mode metasurface-based linear and circular polarization converter
is designed for common microwave frequencies (C-band (5.85–8.20 GHz) and X-band (8.20 …

Feasible extraction method for electromagnetic properties of multilayer metamaterials with short-circuit termination

UC Hasar, G Ozturk, Y Kaya, M Bute… - … on Antennas and …, 2022 - ieeexplore.ieee.org
An extraction technique is proposed for electromagnetic characterization of metal-backed
multilayer metamaterial (MM) structures demonstrating reflection-asymmetric property. It …

A conformal ultrathin and ultra-wideband metamaterial-based absorber dedicated for applications in C and X bands

N Rani, AK Bohre, A Bhattacharya - SN Computer Science, 2023 - Springer
The paper presents an extremely thin, ultra-wide band polarization-independent
metasurface absorber for both kind of surfaces, ie, flat and curved. The proposed unit cell is …

Determination of propagation constant and impedance of non-reciprocal networks/lines using a generalized line-line method

UC Hasar, H Ozturk, H Korkmaz, MA Ozkaya… - Measurement, 2023 - Elsevier
Abstract A novel “line-line”(LL) method is generalized to determine forward and backward
propagation constants (γ+ and γ−) and wave impedances (Z+ and Z−) of non-reciprocal …

[HTML][HTML] Metasurface characterization based on eigenmode analysis and averaging of electromagnetic fields

M Nitas, M Kafesaki, S Arslanagic - Journal of Applied Physics, 2023 - pubs.aip.org
A fully numerical homogenization technique for the retrieval of the effective surface
susceptibilities of a periodic composite metasurface is developed in this work. We utilize the …

Determination of constitutive parameters of strong-coupled bianisotropic metamaterials using oblique incidence scattering parameters

G Ozturk, UC Hasar, M Bute… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
An attractive extraction method has been proposed to determine all constitutive parameters
of diagonal permittivity and permeability tensors in addition to the coupling term (a total of …

Electromagnetic parameter retrieval technique utilizing eigenvalue analysis and field averaging

M Nitas, TV Yioultsis - Journal of Applied Physics, 2022 - pubs.aip.org
In this paper, a fully numerical homogenization technique is presented for the retrieval of the
effective constitutive parameters of a periodic composite medium. Based on the …

General line-line method for propagation constant measurement of non-reciprocal networks

UC Hasar, H Ozturk, H Korkmaz, M Izginli, M Karaaslan… - Measurement, 2022 - Elsevier
Abstract A general “line-line”(LL) method is proposed for propagation constant
determination (γ+ and γ−) of nonreciprocal networks using multiple reference networks. The …

Artificial neural network model for evaluating parameters of reflection-asymmetric samples from reference-plane-invariant measurements

UC Hasar, H Ozturk, M Ertugrul… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
A technique based on artificial neural network (ANN) is proposed to extract the
electromagnetic properties of reflection-asymmetric samples from reference-plane-invariant …