A wideband circular polarization antenna with tuning rectangular slot fed by CPW

Author

Gosalvitr, Jeera ; Mahatthanajatuphat, Chatree ; Akkaraekthalin, Prayoot

Author_Institution

Wireless Communication Research Group (WCRG), Electrical and Computer Engineering, Faculty of Engineering, King Mongkut´´s University of Technology North Bangkok, 1518 Pibusongkram Rd., Bangsue, Bangkok 10800, Thailand

fYear

2012

fDate

16-18 May 2012

Firstpage

1

Lastpage

4

Abstract

This paper presents a wideband circular polarization antenna with tuning rectangular slot fed by coplanar waveguide (CPW). The proposed antenna has been designed to enhance widely the impedance bandwidth. Circular polarization is achieved by the slots around two opposite corners of the square slot. A small tuning stub is placed at the end of strip on CPW to obtain a good impedance matching. The proposed antenna attains an over-lapped bandwidth (axial ratio ≤ 3 dB and return loss ≤ 10 dB) of 17.39% (2.31–2.75 GHz) in measurement.

Keywords

Antenna measurements; Antenna radiation patterns; Broadband antennas; Polarization; Slot antennas; Tuning; Circular polarize; coplanar waveguide; slot antenna; wideband antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2012 9th International Conference on

Conference_Location

Phetchaburi, Thailand

Print_ISBN

978-1-4673-2026-9

Type

conf

DOI

10.1109/ECTICon.2012.6254251

Filename

6254251