Quasi-Frequency-Independent Combined Antenna with Dual-Circularly Polarized Capability

被引：0
|
作者：
Sammeta, Rohit [1 ]
Filipovic, Dejan S. [1 ]
机构：
[1] Univ Colorado, Dept Elect Comp & Energy Engn, Boulder, CO 80309 USA
来源：
2013 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM (APSURSI) | 2013年
关键词：
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
A novel antenna composite with greatly extended bandwidth of a baseline 4-arm log-periodic (LP) antenna is introduced. The antenna combines LP, turnstile bowtie, and circular ring into a single configuration. Wide bandwidth and miniaturization factor > 2 are achieved by coupling the currents from the bow-tie (boom) of the LP to a ring, thereby providing an efficient well-matched radiator at frequencies below the cut-off frequency of the LP. A 160 mm diameter antenna is designed and fabricated to demonstrate the proposed concept. Measured VSWR and radiation patterns verify multi-octave dual CP operation and demonstrate a size reduction factor of 2.25.
引用
收藏
页码：678 / 679
页数：2
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