Dual-Polarization Cylindrical Long-Slot Array (CLSA) Antenna Integrated With Compact Broadband Baluns and Slot Impedance Transformers

被引:9
|
作者
Rayno, Jennifer [1 ]
Celik, Nuri [1 ]
Iskander, Magdy F. [1 ]
机构
[1] Univ Hawaii Manoa, Hawaii Ctr Adv Commun, Honolulu, HI 96822 USA
来源
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2013年 / 12卷
关键词
Broadband antenna; connected array; long-slot array; lumped-element balun;
D O I
10.1109/LAWP.2013.2284595
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
In this letter, a realistic method for feeding the dual-polarized cylindrical long-slot array (CLSA) antenna is presented. A compact lumped-element balun with 2.5:1 bandwidth is designed, fabricated, measured, and used for feeding the dipole-mode, while a compact microstrip coupled-line impedance transformer is used for feeding the slot mode of the antenna. Simulation results of these feeds are compared to experimental measurements, and the overall performance of the dual-polarized CLSA antenna with these feeds is also simulated. Simulation results agree with measured data, and it is shown that this antenna has the capability of achieving four polarization modes [vertical, horizontal, left-handed circular polarization (LHCP), right-handed circular polarization (RHCP)]. The gain over 225-450 MHz ranges from -1.42 to -3.15 dBi for the dipole mode, -0.44 to -2.24 dBi for the slot mode, -1.76 to -2.70 dBic for the LHCP mode, and -1.80 to -2.68 dBic for the RHCP mode.
引用
收藏
页码:1384 / 1387
页数:4
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