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CPW slot antenna with Y-shaped central monopole and matching arms

Published online by Cambridge University Press:  26 June 2018

Daniele Inserra*
Affiliation:
School of Information and Communication Engineering, University of Electronic Science and Technology of China, Qingshuihe Campus, No. 2006, Xiyuan Avenue, West Hi-Tech Zone, Zip code 611731, Chengdu, Sichuan, People's Republic of China
Xiaochuan Fang
Affiliation:
School of Information and Communication Engineering, University of Electronic Science and Technology of China, Qingshuihe Campus, No. 2006, Xiyuan Avenue, West Hi-Tech Zone, Zip code 611731, Chengdu, Sichuan, People's Republic of China
Yongjun Huang
Affiliation:
School of Information and Communication Engineering, University of Electronic Science and Technology of China, Qingshuihe Campus, No. 2006, Xiyuan Avenue, West Hi-Tech Zone, Zip code 611731, Chengdu, Sichuan, People's Republic of China
Guangjun Wen
Affiliation:
School of Information and Communication Engineering, University of Electronic Science and Technology of China, Qingshuihe Campus, No. 2006, Xiyuan Avenue, West Hi-Tech Zone, Zip code 611731, Chengdu, Sichuan, People's Republic of China
*
Author for correspondence: Daniele Inserra, E-mail: inserradaniele@uestc.edu.cn

Abstract

A coplanar waveguide slot antenna is herein presented. A rectangular slot is excited by a Y-shaped monopole etched on a single FR4 substrate. This structure exhibits two resonances due to the presence of the slot and the central monopole which can be used to design a dual-band or a wideband antenna. A parametric analysis is presented to describe the impedance matching mechanism for the two impedance bandwidths (BWs), as well as for the wideband antenna. The latter is fabricated and provides a measured impedance BW from 2.28 to 3.6 GHz, and gain larger than 2 dBi, yielding an outstanding BW/size trade-off. Finally, a 60 mm × 60 mm back metallic reflector is used to achieve a directive antenna with 6 dBi of measured gain, and an impedance BW from 2.16 to 3.59 GHz.

Type
Research Papers
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2018 

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