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High gain low profile wideband dual-layered substrate microstrip antenna based on multiple parasitic elements

Published online by Cambridge University Press:  20 December 2017

Haixiong Li ,
Bozhang Lan ,
Jun Ding  and
Chenjiang Guo
Haixiong Li*
Affiliation:
School of Electronics and Information, Northwestern Polytechnical University, Youyi Road (West), Beilin, Xi'an City, China
Bozhang Lan
Affiliation:
School of Electronics and Information, Northwestern Polytechnical University, Youyi Road (West), Beilin, Xi'an City, China
Jun Ding
Affiliation:
School of Electronics and Information, Northwestern Polytechnical University, Youyi Road (West), Beilin, Xi'an City, China
Chenjiang Guo
Affiliation:
School of Electronics and Information, Northwestern Polytechnical University, Youyi Road (West), Beilin, Xi'an City, China
*
Corresponding author: H. Li Email: [email protected]
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Abstract

In this paper, a high gain broadband low profile microstrip antenna with the dual-layered substrate and four parasitic metal elements is presented. The proposed microstrip antenna is mainly composed of four parts: four circular parasitic metal patches with dual arced breaches, a rectangular metal patch sandwiched between substrates, a square ground plane, and two-square substrates. The circular parasitic elements are the main radiation structure and determine the characteristics of the proposed antenna are closely related to the parasitic elements. The proposed antenna has been fabricated for experimental measurement. The reflection coefficient, radiation pattern, radiation efficiency, and gain have been studied in detail. The simulated and measured impedance bandwidth is 27.0% (3.30–4.33 GHz), the maximum realized peak gain reaches up to 6.52 dBi at the frequency of 3.65 GHz. The radiation pattern has a single peak which is perpendicular to the surface of the substrate. The proposed antenna is suitable to be applied in the 5G mobile or WiMAX wireless communication. Dual antenna with a pair of parasitic elements has been investigated numerically to explain the principle of the proposed antenna.

Keywords

Antenna designModeling and measurementsPassive components and circuits
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 10 , Issue 4 , May 2018 , pp. 453 - 459
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2017 

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