Novel design of CPW-fed broadband circularly polarized printed antenna

Author

Jianxin, Jia ; Chunlan, Lu ; Jie, Yang ; Zhanmeng, Li

Author_Institution

Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China

fYear

2011

fDate

9-11 Sept. 2011

Firstpage

2147

Lastpage

2149

Abstract

A novel design of coplanar waveguide (CPW)-fed broadband circularly polarized printed antenna is presented. The antenna ground is slotted in rhombus shape. By adjusting the lengths and widths of two orthogonal stubs of different length embedded on the microstrip feeding-line, the proposed antenna excites two orthogonal resonant modes with equal amplitude and 90⁰ phase difference for circular polarization (CP) radiation. An antenna was fabricated based on simulations and optimizations. The measured results show that the 3 dB axial ratio (AR) bandwidth and the bandwidth with S11<;-10dB are 11.3% (270MHz) and 14.21% (338MHz) respectively.

Keywords

broadband antennas; coplanar waveguides; microstrip antennas; polarisation; CPW-fed broadband circularly polarized printed antenna; axial ratio bandwidth; coplanar waveguide-fed broadband circularly polarized printed antenna; microstrip feeding line; orthogonal resonant mode; phase difference; rhombus shape antenna; Antenna measurements; Bandwidth; Broadband antennas; Frequency measurement; Microstrip; Microstrip antennas; CPW-fed; broadband; circular polarization; printed antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Communications and Control (ICECC), 2011 International Conference on

Conference_Location

Ningbo

Print_ISBN

978-1-4577-0320-1

Type

conf

DOI

10.1109/ICECC.2011.6066564

Filename

6066564