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Type: Conference paper
Title: On the tuning range of a reconfigurable half-mode substrate-integrated cavity antenna
Author: Nguyen-Trong, N.
Hall, L.
Fumeaux, C.
Citation: Proceedings of the 2015 International Symposium on Antennas and Propagation, 2015, pp.1-4
Publisher: IEEE
Issue Date: 2015
ISBN: 9784885523038
Conference Name: 2015 International Symposium on Antennas and Propagation (ISAP 2015) (9 Nov 2015 - 12 Nov 2015 : Hobart, TAS, AUSTRALIA)
Statement of
Nghia Nguyen-Trong, Leonard Hall, and Christophe Fumeaux
Abstract: In this paper the theoretical maximum tuning range of a frequency-reconfigurable antenna based on a half-mode substrate-integrated cavity is investigated and discussed. The antenna, which has recently been proposed by the authors, demonstrated a measured frequency tuning range of about 42% based on the capacitance range offered by practically available varactors. In the present investigation, the capacitance range is assumed to be unlimited, i.e. varying from 0 to infinity; then the tuning range is analytically calculated for different structure dimensions. It is shown that theoretical upper limit for the tuning range of this antenna is about 80% when the loading stubs' length is equal to the half guided-wavelength at the maximum frequency of operation. This investigation provides guidelines on the stub sized to be used in the design of stub-loaded reconfigurable antennas to achieve a maximum continuous tuning range.
Keywords: Half-Mode Substrate-Integrated Waveguide (HMSIW), waveguide cavity, reconfigurable antennas, periodic structures, turning range
Rights: Copyright © 2015 by IEICE
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Electrical and Electronic Engineering publications

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