Reference-plane-invariant waveguide method for electromagnetic characterization of bi-axial bianisotropic metamaterials

Date

2018-11-01

Author

HASAR, UĞUR CEM
Yildiz, Gul
BUTE, MUSA
Muratoğlu, Abdurrahim

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

264
views

0
downloads

In this paper, we investigate a reference-plane invariant (RPI) method for electromagnetic property extraction of bi-axial bianisotropic metamaterial (MM) slabs. In order to obtain unique properties, we applied the frequency varying technique in order to determine the location of the slab within its cell. For validation of the proposed method, we first simulated and then measured scattering parameters of a MM slab constructed by split-ring-resonators, next extracted its electromagnetic properties, and finally compared extracted properties by those retrieved by another method which requires reference-plane information. From the comparison, we noted that whereas our proposed method correctly retrieved electromagnetic properties without knowing the value of reference plane transformation factors, the accuracy of the tested method was seriously influenced by any inaccurate reference plane information.

Subject Keywords

Metamaterials, Reference-plane invariant, Bi-axial bianisotropic, The frequency varying technique

URI

https://hdl.handle.net/11511/30253

Journal

SENSORS AND ACTUATORS A-PHYSICAL

DOI

https://doi.org/10.1016/j.sna.2018.09.005

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Design and performance analysis of a pump-turbine system using computational fluid dynamics Yıldız, Mehmet; Albayrak, Kahraman; Çelebioğlu, Kutay; Department of Mechanical Engineering (2011) In this thesis, a parametric methodology is investigated to design a Pump-Turbine system using Computational Fluid Dynamics ( CFD ). The parts of Pump-Turbine are created parametrically according to the experience curves and theoretical design methods. Then, these parts are modified to obtain 500 kW turbine working as a pump with 28.15 meters head. The final design of Pump-Turbine parts are obtained by adjusting parameters according to the results of the CFD simulations. The designed parts of the Pump-Turbi...
Collaborative Direction of Arrival estimation by using Alternating Direction Method of Multipliers in distributed sensor array networks employing Sparse Bayesian Learning framework Nurbas, Ekin; Onat, Emrah; Tuncer, Temel Engin (2022-10-01) In this paper, we present a new method for Direction of Arrival (DoA) estimation in distributed sensor array networks by using Alternating Direction Method of Multipliers (ADMM) in Sparse Bayesian Learning (SBL) framework. Our proposed method, CDoAE, has certain advantages compared to previous distributed DoA estimation methods. It does not require any special array geometry and there is no need for inter -array frequency and phase matching. CDoAE uses the distributed ADMM to update the parameter set extrac...
Fine resolution frequency estimation from three DFT samples: Case of windowed data Candan, Çağatay (2015-09-01) An efficient and low complexity frequency estimation method based on the discrete Fourier transform (DFT) samples is described. The suggested method can operate with an arbitrary window function in the absence or presence of zero-padding. The frequency estimation performance of the suggested method is shown to follow the Cramer-Rao bound closely without any error floor due to estimator bias, even at exceptionally high signal-to-noise-ratio (SNR) values.
Realization of multiband microwave metamaterials fabricated via low-cost inkjet printing İbili, Hande; Keles, Selen; Eris, Ozgur; Ergül, Özgür Salih (2019-05-01) We present design and computational analysis of multiband metamaterial structures that are fabricated via low-cost inkjet printing. In particular, three-dimensional arrangements of split-ring resonators with different sizes are considered to achieve bandstop characteristics at multiple frequencies. A fast and accurate solver is employed to analyze alternative arrangements, while considering different parameters to obtain strong resonances at desired frequencies. The obtained designs are fabricated in a low-...
ACOUSTIC CROSSTALK REDUCTION METHOD FOR CMUT ARRAYS Bayram, Barış; Kupnik, Mario; Khuri-Yakub, Butrus T. (2006-01-01) This paper reports on the finite element analysis (FEA) of crosstalk in capacitive micromachined ultrasonic transducer (CMUT) arrays. Finite element calculations using a commercial package (LS-DYNA) were performed for an immersed I-D CMUT array operating in the conventional and collapsed modes. LS-DYNA was used to model the crosstalk in CMUT arrays under specific voltage bias and excitation conditions, and such a modeling is well worth the effort for special-purpose CMUT arrays for ultrasound applications s...

Citation Formats

U. C. HASAR, G. Yildiz, M. BUTE, and A. Muratoğlu, “Reference-plane-invariant waveguide method for electromagnetic characterization of bi-axial bianisotropic metamaterials,” SENSORS AND ACTUATORS A-PHYSICAL, pp. 141–150, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30253.