A monopole antenna with circular polarization

Author

Meng-Hong Shih ; Kai-Lung Hsiao ; Chien-Jen Wang

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Tainan, Tainan, Taiwan

fYear

2014

fDate

2-5 Dec. 2014

Firstpage

609

Lastpage

610

Abstract

A monopole antenna with coplanar-waveguide (CPW) feeding structure is developed for multiple wireless communication system integration. By tuning one of the CPW ground-plane widths can increase the impedance bandwidth. The circular polarization at 1.57 GHz is excited without adding extra design circuits. A parasitic inverted-L radiating strip is shorted to the ground plane in order to cover the required bandwidth of the wireless local area network (WLAN) system. The measured impedance bandwidth of a S₁₁<;-10 dB ranges from 1.37 to 2.82 GHz, and the 3-dB axial-ratio bandwidth is about 3.8 % with respect to 1.56 GHz.

Keywords

coplanar waveguides; electromagnetic wave polarisation; impedance matching; monopole antennas; radiocommunication; CPW feeding structure; CPW ground-plane widths; WLAN system; bandwidth 1.37 GHz to 2.82 GHz; circular polarization; coplanar-waveguide feeding structure; frequency 1.57 GHz; impedance bandwidth; monopole antenna; parasitic inverted-L radiating strip; wireless communication system; wireless local area network; Antenna measurements; Bandwidth; Coplanar waveguides; Impedance; Microstrip antennas; Polarization; Coplanar waveguide; ground plane; impedance bandwidth;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (ISAP), 2014 International Symposium on

Conference_Location

Kaohsiung

Type

conf

DOI

10.1109/ISANP.2014.7026798

Filename

7026798