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Modelling of impedance‐loaded wire frequency‐selective surfaces with tunable reflection and transmission characteristics
Author(s) -
Malyuskin O.,
Fusco V. F.,
Schuchinsky A.
Publication year - 2008
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/jnm.681
Subject(s) - electrical impedance , reflection (computer programming) , galerkin method , rlc circuit , cascade , transmission (telecommunications) , resonance (particle physics) , band pass filter , topology (electrical circuits) , transformation (genetics) , integral equation , filter (signal processing) , mathematical analysis , physics , optics , capacitor , mathematics , computer science , engineering , telecommunications , electrical engineering , nonlinear system , voltage , chemistry , particle physics , biochemistry , quantum mechanics , programming language , combinatorics , chemical engineering , gene
Abstract In this paper an efficient means to control the reflection and transmission characteristics of wire‐based frequency‐selective surfaces (FSS) using linear‐lumped impedance loading is presented. We show that by varying the topology of the RLC loading circuits and the component values it is possible to control the resonance frequency of the array as well as its angular characteristics. We discuss several examples, particularly a switchable dual band bandpass filter and enhancement of FSS angle‐of‐arrival properties. The analysis is based on the self‐consistent solution of thin wire Hallen's type integral equation solved by Galerkin's method. The periodic Green's function in the kernel of integral equation has been accelerated using the Ewald transformation, which leads to a highly accurate and efficient numerical procedure. Copyright © 2008 John Wiley & Sons, Ltd.