Circularly polarized annular-ring slot antenna for WiMAX 2.3 GHz and WLAN 2.4 GHz applications

Author

Sim, Chow-Yen-Desmond ; Ming-Hsuan Chang ; Horng-Dean Chen ; Tuan-Yung Han ; Jeen-Sheen Row

Author_Institution

Dept. of Electr. Eng., Feng Chia Univ., Taichung, Taiwan

fYear

2014

fDate

6-11 July 2014

Firstpage

1051

Lastpage

1052

Abstract

The design of a novel microstrip-line fed circularly polarized (CP) annular-ring slot antenna (ARSA) is studied. To achieve CP radiation with broad axial ratio (AR) bandwidth that can cover both the WiMAX 2.3 GHz and WLAN 2.4 GHz bands, a simple method of loading an inverted L-shaped slot into the bottom section of the ARSA is proposed. Measured results show that the proposed antenna can exhibit wide 10-dB impedance bandwidth of 48% (1.69-2.76 GHz), and its corresponding 3-dB AR bandwidth was approximately 8% (2.29-2.48 GHz).

Keywords

UHF antennas; antenna feeds; antenna radiation patterns; electromagnetic wave polarisation; loop antennas; microstrip antennas; microstrip lines; slot antennas; AR bandwidth; ARSA; CP radiation; WLAN application; WiMAX application; broad axial ratio bandwidth; circularly polarized annular-ring slot antenna; frequency 1.69 GHz to 2.76 GHz; gain 10 dB; inverted L-shaped slot antenna; microstrip-line fed circularly polarized annular-ring slot antenna; Antenna measurements; Bandwidth; Microstrip; Microstrip antennas; Slot antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE

Conference_Location

Memphis, TN

ISSN

1522-3965

Print_ISBN

978-1-4799-3538-3

Type

conf

DOI

10.1109/APS.2014.6904852

Filename

6904852