A dual-band dual-polarized nested vivaldi slot array with multilevel ground plane

被引：31
|
作者：
Loui, H [1 ]
Peeters, J [1 ]
Popovic, Z [1 ]
机构：
[1] Univ Colorado, Dept Elect & Comp Engn, Boulder, CO 80309 USA
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2003年 / 51卷 / 09期
关键词：
broad-band array; coupling;
D O I：
10.1109/TAP.2003.816336
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 paper, we present a systematic approach to the design, optimization and characterization of a broadband 5:1 bandwidth (0.8 to 4.0 GHz) antenna subarray. The array element is an optimized-taper antipodal Vivaldi slot with a bandwidth of 2.5:1. Two such elements of different sizes and with 0.4 GHz (10% of the highest frequency) overlapping bandwidths are arrayed in a nested lattice above a multilevel ground plane that shields the feeds and electronics. Return loss, radiation patterns, cross-polarization and mutual coupling are measured from 0.5-5.0 GHz. This array demonstrates E plane patterns with 50degrees and 45degrees 3-dB beamwidths in the lower and upper frequency bands, respectively. The coupling between the elements is characterized for different relative antenna positions in all three dimensions.
引用
收藏
页码：2168 / 2175
页数：8
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