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Appl. Sci. 2012, 2(2), 375-395; doi:10.3390/app2020375
Article

Electrically Small Resonators for Planar Metamaterial, Microwave Circuit and Antenna Design: A Comparative Analysis

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 and *
GEMMA/CIMITEC, Departament d’Enginyeria Electrònica, Universitat Autònoma de Barcelona, 08193 BELLATERRA (Barcelona), Spain
* Author to whom correspondence should be addressed.
Received: 15 March 2012 / Accepted: 10 April 2012 / Published: 20 April 2012
(This article belongs to the Special Issue Feature Papers)

Abstract

Planar metamaterials and many microwave circuits and antennas are designed by means of resonators with dimensions much smaller than the wavelength at their resonance frequency. There are many types of such electrically small resonators, and the main purpose of this paper is to compare them as building blocks for the implementation of microwave components. Aspects such as resonator size, bandwidth, their circuit models when they are coupled to transmission lines (as is usually required), as well as key applications, will be considered.
Keywords: metamaterials; electrically small resonators; split ring resonator (SRR); stepped impedance resonator (SIR); duality metamaterials; electrically small resonators; split ring resonator (SRR); stepped impedance resonator (SIR); duality
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Durán-Sindreu, M.; Naqui, J.; Paredes, F.; Bonache, J.; Martín, F. Electrically Small Resonators for Planar Metamaterial, Microwave Circuit and Antenna Design: A Comparative Analysis. Appl. Sci. 2012, 2, 375-395.

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