Design of broad circularly polarized square slot antenna with aCPW-Fed

Author

Jiang, Wei ; Gong, Shu-Xi ; Fu, G. ; Li, Y.-P. ; Yang, Lei ; Zhang, Ye

Author_Institution

Nat. Lab. of Sci. & Technol. on Antennas & Microwaves, Xidian Univ., Xi´an, China

fYear

2014

fDate

4-6 March 2014

Firstpage

325

Lastpage

327

Abstract

The paper presents a novel design for a circularly polarized square slot antenna (CPSSA). The antenna is fed by a coplanar waveguide. An asymmetric slot on the ground is applied to create the circularly polarized wave. By adding two orthogonal stubs embedded on the microstrip feeding-line, both the impedance bandwidth and the axial ratio bandwidth of antenna are increased. The results show that 3dB axial ratio (AR) bandwidth and the impedance bandwidth with S11<;-10dB are 59.2% (1.63 GHz) and 84% (2.1 GHz), respectively.

Keywords

antenna feeds; coplanar waveguides; polarisation; slot antennas; AR bandwidth; CPSSA; CPW-fed antenna; asymmetric slot; axial ratio bandwidth; broad circularly polarized square slot antenna; circularly polarized wave; coplanar waveguide; impedance bandwidth; microstrip feeding-line; orthogonal stub; Antenna measurements; Bandwidth; Broadband antennas; Impedance; Slot antennas; antennas; circular polarization; coplanar waveguide;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology: "Small Antennas, Novel EM Structures and Materials, and Applications" (iWAT), 2014 International Workshop on

Conference_Location

Sydney, NSW

Print_ISBN

978-1-4799-2331-1

Type

conf

DOI

10.1109/IWAT.2014.6958677

Filename

6958677