Novel CPW-Fed Planar Monopole Antenna for WiMAX/WLAN Applications

Author

Liu, Hsien-Wen ; Ku, Chia-Hao ; Yang, Chang-Fa

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan

Volume

9

fYear

2010

fDate

7/2/1905 12:00:00 AM

Firstpage

240

Lastpage

243

Abstract

A coplanar waveguide (CPW)-fed planar monopole antenna with triple-band operation for WiMAX and WLAN applications is presented. The antenna, which occupies a small size of 25(L) ?? 25(W) ?? 0.8(H) mm³, is simply composed of a pentagonal radiating patch with two bent slots. By carefully selecting the positions and lengths of these slots, good dual stopband rejection characteristic of the antenna can be obtained so that three operating bands covering 2.14-2.85, 3.29-4.08, and 5.02-6.09 GHz can be achieved. The measured results also demonstrate that the proposed antenna has good omnidirectional radiation patterns with appreciable gain across the operating bands and is thus suitable to be integrated within the portable devices for WiMAX/WLAN applications.

Keywords

UHF antennas; WiMax; antenna feeds; antenna radiation patterns; coplanar waveguides; microwave antennas; monopole antennas; multifrequency antennas; planar antennas; wireless LAN; UHF antennas; WiMAX; coplanar waveguides; dual stopband rejection; frequency 2.14 GHz to 2.85 GHz; frequency 3.29 GHz to 4.08 GHz; frequency 5.02 GHz to 6.09 GHz; microwave antennas; omnidirectional radiation patterns; pentagonal radiating patch; planar monopole antenna; triple-band operation; wireless LAN; Band-notched; WLAN; WiMAX; monopole antenna; triple-band;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2010.2044860

Filename

5427136