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A compact CPW-fed monopole antenna for multi-band application

Published online by Cambridge University Press:  17 September 2021

YunYan Zhou*
Affiliation:
College of Mechanical and Electrical Engineering, Huangshan University, 245041 Huangshan, Anhui Province, China Advance Package Technology Research Center of Huangshan University, 245041 Huangshan, Anhui Province, China
NianShun Zhao
Affiliation:
College of Mechanical and Electrical Engineering, Huangshan University, 245041 Huangshan, Anhui Province, China
RenXia Ning
Affiliation:
College of Information Engineering, Huangshan University, 245041 Huangshan, Anhui Province, China
Jie Bao
Affiliation:
College of Mechanical and Electrical Engineering, Huangshan University, 245041 Huangshan, Anhui Province, China Advance Package Technology Research Center of Huangshan University, 245041 Huangshan, Anhui Province, China
*
Author for correspondence: YunYan Zhou, E-mail: yanwork@hsu.edu.cn

Abstract

A compact coplanar waveguide-fed monopole antenna is presented in this paper. The proposed antenna is composed of three monopole branches. In order to achieve the miniaturization, the longest branch was bent. The antenna is printed on an FR4 dielectric substrate, having a compact size of 0.144λ0 × 0.105λ0 × 0.003λ0 at its lowest resonant frequency of 900 MHz. The multiband antenna covers five frequency bands: 820–990 MHz, 1.87–2.08 GHz, 2.37–2.93 GHz, 3.98–4.27 GHz, and 5.47–8.9 GHz, which covers the entire radio frequency identification bands (860–960 MHz, 2.4–2.48 GHz, and 5.725–5.875 GHz), Global System for Mobile Communications (GSM) bands (890–960 MHz and 1.850–1.990 GHz), WLAN bands (2.4–2.484 GHz and 5.725–5.825 GHz), WiMAX band (2.5–2.69 GHz), X-band satellite communication systems (7.25–7.75 GHz and 7.9–8.4 GHz), and sub 6 GHz in 5G mobile communication system (3.3–4.2 GHz and 4.4–5.0 GHz). Also, the antenna has good radiation characteristics in the operating band, which is nearly omnidirectional. Both the simulated and experimental results are presented and compared and a good agreement is established. The proposed antenna operates in five frequency bands with high gain and good radiation characteristics, which make it a suitable candidate in terminal devices with multiple communication standards.

Type
Antenna Design, Modelling and Measurements
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press in association with the European Microwave Association

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