Microstrip-Fed Wideband Circularly Polarized Printed Antenna

被引：43
|
作者：
Bao, Xiu Long [1 ]
Ammann, Max J. [1 ,2 ]
McEvoy, Patrick [1 ,2 ]
机构：
[1] Dublin Inst Technol, Antenna & High Frequency Res Ctr, Dublin 8, Ireland
[2] Ctr Telecommun Res, Dublin 8, Ireland
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2010年 / 58卷 / 10期
基金：
爱尔兰科学基金会;
关键词：
Asymmetrical dipole; circular polarization; printed dipole antenna; slot antenna; WIRELESS COMMUNICATION APPLICATIONS; SQUARE SLOT ANTENNA; BROAD-BAND; DIPOLE ANTENNA; PATCH ANTENNA; DESIGN; SERIES;
D O I：
10.1109/TAP.2010.2055776
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A wideband circularly-polarized printed antenna is proposed, which employs an asymmetrical dipole and a slit in the ground plane which are fed by an L-shaped microstrip feedline using a via. The proposed antenna geometry is arranged so that the orthogonal surface currents, which are generated in the dipole, feedline and ground plane, have the appropriate phase to provide circular polarization. A parametric study of the key parameters is made and the mechanism for circular polarization is described. The measured results show that the impedance bandwidth is approximately 1.34 GHz (2.45 GHz to 3.79 GHz) and the 3 dB axial ratio bandwidth is approximately 770 MHz (2.88 GHz to 3.65 GHz) which represent fractional bandwidths of approximately 41% and 23%, respectively, with respect to a centre frequency of 3.3 GHz.
引用
收藏
页码：3150 / 3156
页数：7
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