DocumentCode
1110717
Title
Circularly Polarized Square Slot Antenna With a Pair of Inverted-L Grounded Strips
Author
Sze, Jia-Yi ; Chang, Chi-Chaan
Author_Institution
Chung Cheng Inst. of Technol., Nat. Defense Univ., Taoyuan
Volume
7
fYear
2008
fDate
6/30/1905 12:00:00 AM
Firstpage
149
Lastpage
151
Abstract
This paper presents a new wideband circularly polarized square slot antenna (CPSSA) with a coplanar waveguide (CPW) feed. The proposed antenna features two inverted-L grounded strips around two opposite corners of the slot and a widened tuning stub protruded into the slot from the signal strip of the CPW. Broadside circular-polarization (CP) radiation can be easily obtained using a simple design procedure. For the optimized antenna prototype, the measured bandwidth with an axial ratio (AR) of less than 3 dB is larger than 25% and the measured VSWR les 2 impedance bandwidth is as large as 52%.
Keywords
antenna feeds; coplanar waveguides; slot antennas; broadside circular-polarization radiation; coplanar waveguide feed; impedance bandwidth; inverted-L grounded strips; wideband circularly polarized square slot antenna; widened tuning stub; CPW feeding; Circular polarization; Circular polarization (CP); coplanar waveguide (CPW) feeding; slot antennas;
fLanguage
English
Journal_Title
Antennas and Wireless Propagation Letters, IEEE
Publisher
ieee
ISSN
1536-1225
Type
jour
DOI
10.1109/LAWP.2008.921341
Filename
4476054
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