Title :
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
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;
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
DOI :
10.1109/ECTICon.2012.6254251
