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Type: Journal article
Title: A compact wideband circular polarized Fabry-Perot antenna using resonance Structure of thin dielectric slabs
Author: Nghia, N.-T.
Huy, H.T.
Truong, K.N.
Abbosh, A.M.
Citation: IEEE Access, 2018; 6:56333-56339
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Issue Date: 2018
ISSN: 2169-3536
Statement of
Nghia Nguyen-Trong, Huy Hung Tran, Truong Khang Nguyen, Amin M. Abbosh
Abstract: A wideband small-footprint circularly polarized Fabry-Perot resonator antenna is presented in this paper. The design employs a partial reflecting surface (PRS) consisting of thin homogeneous dielectric slabs separated by a small air gap. The PRS is analyzed using transmission line theory, which gives more insightful into the theoretical concept and provides a simple tool for design and optimization. An antenna prototype with overall size of 1.2λ fmin × 1.2λ fmin × 0.6λ fmin has been fabricated and experimentally validated (λ fmin being the free-space wavelength at the minimum operating frequency). The measured impedance matching and axial ratio bandwidths are approximately 55.7% and 47.7%, respectively. In addition, the antenna achieved 3-dB gain bandwidth of 50.9% with a peak gain of 15 dBi. Compared to previous designs targeting similar applications, the antenna proposed here possesses a simple geometry with light weight, ease of optimization and fabrication, as well as enhanced axial ratio bandwidth and 3-dB gain bandwidth.
Keywords: Substrates; impedance; power transmission lines; dielectrics; antennas; slabs; bandwidth
Rights: © 2018 IEEE.
DOI: 10.1109/ACCESS.2018.2872571
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Electrical and Electronic Engineering publications

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