A compact tri-band monopole antenna for WLAN and WiMAX applications

Author

Guorong Zou ; Linyan Guo ; Helin Yang

Author_Institution

Coll. of Phys. Sci. & Technol., Central China Normal Univ., Wuhan, China

Volume

01

fYear

2013

fDate

23-25 Oct. 2013

Firstpage

226

Lastpage

228

Abstract

A compact tri-band planar monopole antenna is proposed in this paper that employs reactive loading and a defected ground plane structure. This proposed antenna operates in two modes. The first resonance exhibits a dipolar mode over the lower WiFi band of 2.40- 2.485 GHz and the upper WiFi band of 5.15 -5.70 GHz. The second resonance has a monopolar mode over the WiMAX band at 3.30-3.70 GHz. Full-wave analysis shows that the currents of these two modes are orthogonal to each other, resulting in orthogonal radiation patterns in their far field. The defected ground, formed by appropriately cutting a spiral-shaped slot out of one of the CPW (Coplanar Waveguide) ground planes, leads to the second resonance.

Keywords

WiMax; antenna radiation patterns; coplanar waveguides; defected ground structures; dipole antennas; monopole antennas; multifrequency antennas; wireless LAN; CPW ground planes; WLAN application; Wi-Fi band; WiMAX application; WiMAX band; compact triband planar monopole antenna; coplanar waveguide; defected ground plane structure; dipolar mode; far field; frequency 2.40 GHz to 2.485 GHz; frequency 3.30 GHz to 3.70 GHz; frequency 5.15 GHz to 5.70 GHz; full-wave analysis; monopolar mode; orthogonal radiation patterns; reactive loading; spiral-shaped slot; Antennas; Coplanar waveguides; Copper;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas & Propagation (ISAP), 2013 Proceedings of the International Symposium on

Conference_Location

Nanjing

Print_ISBN

978-7-5641-4279-7

Type

conf

Filename

6717419