Compact broadband patch antenna with high gain for 2.4 GHz WLAN operation

Author

Wang, Shun-Min ; Chang, Fa-Shian ; Su, Saou-Wen ; Chao, Kuo-Chien ; Chen, Wei-Chieh ; Tu, Cheng-Feng

Author_Institution

Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan

fYear

2010

fDate

11-17 July 2010

Firstpage

1

Lastpage

4

Abstract

A patch antenna fed by an inclined probe pin with a step-shaped ground plane has been proposed. The impedance matching for frequencies across the2.4 GHz band is all within VSWR of 1.5 (better than 14dB), which covers WLAN operation. The measured results show that although a shore probe pin and the shape of a fillister ground is in use, large probe inductance is well compensated for additional capacitive coupling arising between the vertical and inclined plates of the ground and the patch bent portion. The proposed patch antenna along with good radiation characteristics and good broadside radiation patterns are obtained. The measured peak antenna gain is in the range of 7-8.5 dBi and radiation efficiency exceeds about 85%.

Keywords

UHF antennas; broadband antennas; impedance matching; microstrip antennas; wireless LAN; WLAN operation; capacitive coupling; compact broadband patch antenna; frequency 2.4 GHz; impedance matching; inclined probe pin; step-shaped ground plane; Antenna measurements; Antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE

Conference_Location

Toronto, ON

ISSN

1522-3965

Print_ISBN

978-1-4244-4967-5

Type

conf

DOI

10.1109/APS.2010.5561081

Filename

5561081