DocumentCode
1542165
Title
Design of Small Circularly Polarized Patch Antenna
Author
Tang, Xihui ; Lau, Ka-Leung ; Xue, Quan ; Long, Yunliang
Author_Institution
Shenzhen Res. Inst., City Univ. of Hong Kong, Shenzhen, China
Volume
9
fYear
2010
fDate
7/2/1905 12:00:00 AM
Firstpage
728
Lastpage
731
Abstract
A new method to reduce the lateral size of the circularly polarized (CP) patch antenna is presented. It is implemented by attaching two sets of vertical right-angle bended stubs to the diagonal corners of the slotted square patch. To demonstrate the effectiveness of this method, three antennas with different lengths of bended stubs are designed and tested. The smallest one has a size reduction of 77.7% in comparison to the conventional half-wave circularly polarized patch antenna. It has impedance bandwidth (VSWR ≤ 2) of 7.9%, axial ratio (AR) bandwidth (AR ≤ 3 dB) of 1.53% and peak gain of 4.7 dBic.
Keywords
electromagnetic wave polarisation; microstrip antennas; CP patch antenna; half-wave circularly polarized patch antenna; vertical right-angle bended stubs; Circular polarization; patch antenna;
fLanguage
English
Journal_Title
Antennas and Wireless Propagation Letters, IEEE
Publisher
ieee
ISSN
1536-1225
Type
jour
DOI
10.1109/LAWP.2010.2060182
Filename
5512658
Link To Document