A novel broadband circularly polarization microstrip antenna

Author

Xiang Yang ; Qian ZuPing ; Zhao Shoujun ; Bao Junsong

Author_Institution

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

Volume

3

fYear

2008

fDate

21-24 April 2008

Firstpage

1226

Lastpage

1229

Abstract

Based on negative refraction circuit theory, a novel broadband Wilkonson balun which is constructed by conventional transmission line with lumped-element series capacitors and shunt inductors is proposed in this paper. And the realization method of broadening impedance and circular polarization axis ratio bandwidth is analyzed. A novel CP microstripe antenna using the balun is proposed which central frequence is 1.40GHz , and the axis ratio bandwidth achieved 52.37%, The VSWR is always below 2 in the bandwidth.

Keywords

UHF antennas; baluns; broadband antennas; electromagnetic wave polarisation; microstrip antennas; transmission lines; UHF antennas; broadband Wilkonson balun; broadband circular polarization; lumped-element series capacitors; microstrip antenna; negative refraction circuit theory; shunt inductors; transmission line; Bandwidth; Broadband antennas; Capacitors; Circuit theory; Distributed parameter circuits; Impedance matching; Microstrip antennas; Polarization; Shunt (electrical); Transmission line theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology, 2008. ICMMT 2008. International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-1879-4

Electronic_ISBN

978-1-4244-1880-0

Type

conf

DOI

10.1109/ICMMT.2008.4540653

Filename

4540653