Investigation on dual-armed sinuous antenna

2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2012-05-05 DOI:10.1109/ICMMT.2012.6230077

Daotie Li, Junfa Mao

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引用次数: 3

Abstract

A fully parameterized angularly zigzagged planar self-complementary dual-armed sinuous antenna with diameter D = 73.8 mm is optimally designed and simulated with Ansoft HFSS™ v.13. Ultra-wideband (S₁₁ ≤ -10 dB), good transient properties, full polarization, and high gain (5 dBi-7 dBi) are acquired within band 1.5 GHz-15 GHz. Three linearly polarized bands (AR≥30 dB): f₁=3.1 GHz (2.85 GHz-3.78 GHz, 30%), f₃ = 5.5 GHz (5.28 GHz-5.84 GHz, 10%), f₄ = 8.4 GHz, f₅ = 10 GHz (7.87 GHz-10.41 GHz, 25.4%) and two circularly polarized bands (AR≤15 dB): f₂ = 4.6 GHz (4.2 GHz-4.75 GHz, 12%, RHCP), f₆ = 13.4 GHz(11.54 GHz-15 GHz, 25.8%, LHCP) are obtained within this band. Gain patterns of these bands are all bidirectional in broadside (Theta = 0°) and almost azimuth-free in horizontal plane with 26°-140° axial ratio beam width. So it is very attractive to application in ultra-wideband multi-polarization systems, such as electronic warfare, track and guidance radar, radio astronomy and other communication systems.

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双臂弯曲天线的研究

采用Ansoft HFSS™v.13对直径D = 73.8 mm的全参数化角之字形平面自互补双臂弯曲天线进行了优化设计和仿真。在1.5 GHz-15 GHz频段内获得了超宽带(S11≤-10 dB)、良好的瞬态特性、全极化和高增益(5 dBi-7 dBi)。在该频段内得到三个线极化频带(AR≥30 dB): f1=3.1 GHz(2.85 GHz-3.78 GHz, 30%)， f3 = 5.5 GHz(5.28 GHz-5.84 GHz, 10%)， f4 = 8.4 GHz, f5 = 10 GHz(7.87 GHz-10.41 GHz, 25.4%)和两个圆极化频带(AR≤15 dB): f2 = 4.6 GHz(4.2 GHz-4.75 GHz, 12%， RHCP)， f6 = 13.4 GHz(11.54 GHz-15 GHz, 25.8%， LHCP)。这些波段的增益模式在宽方向(θ = 0°)上都是双向的，在26°-140°轴向比波束宽度的水平面上几乎是无方位的。因此，在电子战、跟踪制导雷达、射电天文等通信系统的超宽带多极化系统中具有广泛的应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

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