Title :
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
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;
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
DOI :
10.1109/IWAT.2014.6958677
