Dual-band Circularly Polarized Hexagonal-Slot Antenna

被引：0
|
作者：
Jeevanandham, Nijee [1 ]
Nasimuddin [2 ]
Agarwal, Kush [1 ]
Alphones, A. [1 ]
机构：
[1] Nanyang Technol Univ, Sch EEE, Singapore 639798, Singapore
[2] Inst Infocomm Res, Dept RF & Opt, Singapore, Singapore
来源：
2012 42ND EUROPEAN MICROWAVE CONFERENCE (EUMC) | 2012年
关键词：
Circular polarization; dual band; microstrip feed; slot antenna; wideband; FEED;
D O I：
暂无
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 dual-band, circularly polarized, hexagonal-shaped slot antenna is proposed and studied using microstrip feed with L-shaped stub. The antenna consists of a hexagonal-shaped slot with a microstrip feed and L-shaped stub. An impedance transformer is used to improve the impedance matching of the slot antenna. The slot and feeding structure are fabricated on a low cost FR4 substrate. The measured results of the antenna prototype are 15.7% (3.2-3.75 GHz)\15.5% (4.42-5.1 GHz) for 3-dB axial ratio bandwidths and 8.6% (3.41-3.70 GHz)\15.5% (4.47-5.20 GHz) for VSWR<2 impedance bandwidths, respectively, for the 3.5 GHz and 4.5 GHz operating frequency bands. The measured gain is around 4.3 dBic for 3.5 GHz band and 3.0 dBic for 4.5 GHz band at the boresight.
引用
收藏
页码：834 / 837
页数：4
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