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Type: Conference paper
Title: A reconfigurable quarter-wave patch antenna employing a folded loading stub
Author: Nguyen-Trong, N.
Hall, L.
Fumeaux, C.
Citation: AP-S International Symposium (Digest) (IEEE Antennas and Propagation Society), 2016, pp.831-832
Publisher: IEEE
Issue Date: 2016
Series/Report no.: IEEE Antennas and Propagation Society International Symposium
ISBN: 9781509028863
ISSN: 1522-3965
Conference Name: 2016 IEEE international Symposium on Antennas and Propagation (APSURSI 2016) (26 Jun 2016 - 1 Jul 2016 : Fajardo, Puerto Rico)
Statement of
Nghia Nguyen-Trong, Leonard Hally and Christophe Fumeaux
Abstract: In this paper, a concept of a compact reconfigurable quarter-wave patch antenna employing a folded loading stub and a tuning varactor is presented. The structure consists of two substrate layers separated by a ground plane. The antenna is placed on the top metal layer whilst the entire feeding structure and the bias circuit are located on the bottom layer. The central result of the paper is the folded stub configuration for this type of reconfigurable antennas, which contributes to antenna miniaturization and also avoids complex bias network on the antenna layer. Simulations predict that, using a single varactor with capacitance range of [0.149, 1.304] pF, the antenna can have a continuous frequency tuning range of about 28% with a radiation efficiency ranging from to 23% to 90%. The antenna size is only 0:13λο x 0:15λο where λο is the free-space wavelength at the minimum frequency of the tuning range.
Keywords: Reconfigurable antennas, quarter-wave patch, bias circuit, antenna miniaturization
Rights: © 2016 IEEE
DOI: 10.1109/APS.2016.7696124
Appears in Collections:Aurora harvest 8
Electrical and Electronic Engineering publications

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