Equivalent Circuit Model for Square Ring Slot Frequency Selective Surface
Authors
Abstract:
An equivalent circuit model for predicting the frequency response of a square ring slot frequency selective surface (SRS-FSS) for normal incidence is described. The proposed FSS consists of an array of square patches centered within a wire grid. The presented circuit model is formed by the impedance of the wire grid that is parallel with the impedance of the patch array, also the mutual coupling between the wire grid and the patch array is taken into account in the patch impedance. Through using the provided relations, the values of circuit elements can be calculated. The proposed relations are applied to many SRS-FSSs with different dimensions and the results are compared to those of the simulations obtained from two well-known software packages, Ansoft HFSS and CST Microwave Studio. The results show that the proposed model well approximates the frequency behavior of the SRS-FSS.
similar resources
Equivalent Circuit Model for Double Split Ring Resonators
This article focuses on the electric modeling of split ring resonators with a new approach based on an equivalent circuit. The elements of circuit are determined from geometric parameters forming the three dimensional model of this type of resonators. In the first part, an analytic study is proposed about the determination of the components of the circuit according to a function of physical par...
full textEquivalent Circuit Model of Square Patch FSS Using Vector Fitting
The analysis and equivalent circuit modeling of square patch FSS adopting an efficient vector-fitting is proposed. The simulations of microstructure are performed with CST Microwave Studio on single-substrate for different physical parameters, angle of incidences and polarizations. Then circuit model is extracted and developed using vector-fitting tool and implemented in SPICE (Simulation Progr...
full textDesign and Analysis of New Compact UWB Frequency Selective Surface and Its Equivalent Circuit
A compact, low profile, dual polarized, ultra wideband, frequency selective surface is proposed. It is designed by using two similar metallic array structures separated by dielectric material FR4. The simulated reflection bandwidth (with transmission < −20 dB) for TE incident wave is 8 GHz from 2.87GHz to 10.87 GHz corresponds to 116%. The unit cell dimension and periodicity are of the order of...
full textFrequency-Independent Equivalent-Circuit Model for On-Chip Spiral Inductors
A wide-band physical and scalable 2equivalent circuit model for on-chip spiral inductors is developed. Based on physical derivation and circuit theory, closed-form formulas are generated to calculate the RLC circuit elements directly from the inductor layout. The 2model accurately captures ( ) and ( ) characteristics beyond the self-resonant frequency. Using frequency-independent RLC elements, ...
full textParametric performance analysis of the square loop frequency selective surface
In this paper the effects of parameters of a square loop frequency selective surface to the resonance frequency is studied. Side length of the square loop, width of the conducting patch, thickness and the substrate are varied and their effects on resonance frequency evaluated via a Finite Integration Technique (FIT) based simulator. The absorption and reflected characteristics and the transmiss...
full textEquivalent circuit of a reconfigurable triple-slot reflectarray cell
Abstract : This paper presents an equivalent model for a multiple-resonance reflectarray cell. It allows predicting the different phase-states of the cell from only a very few full-wave simulations. Demonstrations are first given for a passive cell where different geometrical parameters are varied. Then, the approach is generalized to a reconfigurable cell. Finally, a canonical reflectarray wit...
full textMy Resources
Journal title
volume 3 issue 1
pages 23- 32
publication date 2016-03-09
By following a journal you will be notified via email when a new issue of this journal is published.
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023