NDLI: Equivalent circuit model for array of circular loop FSS structures at oblique angles of incidence

Content Provider	IET Digital Library
Author	Varkani, Ali Ramezani Firouzeh, Zaker Hossein Nezhad, Abolghasem Zeidaabadi
Abstract	This study aims to introduce a simple equivalent circuit model of circular loop shaped frequency selective surface (FSS), predicting the plane-wave transmission characteristics for oblique angles of incidence. The equivalent circuit model is based on a series of basic equations in order to calculate the inductance and capacitance of strip gratings. Through provided relations, the values of circuit elements can be calculated as well. The proposed relations are applied to many circular loop FSSs with different dimensions, and the results are compared with the full-wave simulations obtained from computer simulation technology microwave studio. Moreover, some comparison graphs between the simulated and analytical resonant frequency for different values of design parameters have been carried out to show the circuit model follows the trend of the simulated responses. Finally, both the FSS structures have been fabricated and measured in an anechoic chamber. A good agreement between the experimental results and the simulated responses demonstrates the validity of the circuit model.
Starting Page	749
Ending Page	755
Page Count	7
ISSN	17518725
Volume Number	12
e-ISSN	17518733
Issue Number	Issue 5, Apr (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/12/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2017.1004
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2017-11-22
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Analytical Resonant Frequency Anechoic Chamber Anechoic Chambers (electromagnetic) Circular Loop FSS Structure Array Circular Loop Shaped Frequency Selective Surface Equivalent Circuit Model Computer Simulation Technology Microwave Studio Electromagnetic Compatibility Equivalent Circuit Equivalent Circuit Model Frequency Selective Surface Interference Microwave Material Oblique Incidence Angles Plane-wave Transmission Characteristic Strip Grating Capacitance Strip Grating Inductance
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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