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Impedance Bandwidth Improvement of a Planar Antenna Based on Metamaterial-Inspired T-Matching Network

Alibakhshikenari, M.
; 
Virdee, B.S.
; 
Shukla, P.
; 
Wang, Y.
; 
Azpilicueta, L.
; 
Naser-Moghadasi, M.
; 
See, Chan H.
; 
Elfergani, Issa T.
; 
Zebiri, C.
; ... show 5 more
Publication Date
2021-05-03
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Keywords
T-matching circuit, Microstrip antenna, Metamaterial, Transmission-line, Impedance matching
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© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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Yes
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openAccess
Accepted for publication
2021-04-08
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Engineering and Digital Technology Publications
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Abstract
In this paper a metamaterial-inspired T-matching network is directly imbedded inside the feedline of a microstrip antenna to realize optimum power transfer between the front-end of an RF wireless transceiver and the antenna. The proposed T-matching network, which is composed of an arrangement of series capacitor, shunt inductor, series capacitor, exhibits left-handed metamaterial characteristics. The matching network is first theoretically modelled to gain insight of its limitations. It was then implemented directly in the 50-Ω feedline to a standard circular patch antenna, which is an unconventional methodology. The antenna’s performance was verified through measurements. With the proposed technique there is 2.7 dBi improvement in the antenna’s radiation gain and 12% increase in the efficiency at the center frequency, and this is achieved over a significantly wider frequency range by a factor of approximately twenty. Moreover, there is good correlation between the theoretical model, method of moments simulation, and the measurement results.
URI
http://hdl.handle.net/10454/18486
Version
Accepted manuscript
Citation
Alibakhshikenari M, Virdee BS, Shukla P et al (2021) Impedance Bandwidth Improvement of a Planar Antenna Based on Metamaterial-Inspired T-Matching Network. IEEE Access. 9: 67916-67927.
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Link to Version of Record
https://doi.org/10.1109/ACCESS.2021.3076975
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Article
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