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Type: Journal article
Title: Planar array of electric-LC resonators with broadband tunability
Author: Withayachumnankul, W.
Fumeaux, C.
Abbott, D.
Citation: IEEE Antennas and Wireless Propagation Letters, 2011; 10:577-580
Publisher: IEEE
Issue Date: 2011
ISSN: 1536-1225
Statement of
Withayachumnankul W., Fumeaux C. and Abbott, D.
Abstract: A planar array of microwave electric- LC (ELC) resonators with broadband tunability of the resonance frequency is presented in this letter. An ELC resonator is typically composed of inductive loops and a capacitive gap, resonant at a wavelength much larger than its physical dimension. Here, the original resonator is modified to accommodate a varactor and its accompanying dc bias enabling resonance tunability. The wideband operation can be achieved through strategic placement of the varactor. The robustness of the response for a large array containing hundreds of the varactor-loaded resonators is considered via a sensitivity analysis. The numerical and experimental results show that the fabricated array possesses a wide tuning range of nearly 32% with no significant resonance broadening, despite the tolerance in varactor characteristics.
Rights: © Copyright 2011 IEEE – All Rights Reserved
DOI: 10.1109/LAWP.2011.2158794
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Appears in Collections:Aurora harvest
Electrical and Electronic Engineering publications

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