Xueli Liu, Shun Yao, Pablo J. González, S. Georgakopoulos
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引用次数: 13
摘要
本文提出了一种新颖的超宽带折纸准锥形天线设计，该天线可以在1.28 GHz至4.12 GHz 3种不同的高度状态下重新配置，工作带宽分别为1.28 GHz-1.64 GHz(25%)、1.64 GHz-3.56 GHz(74%)和3.56 GHz-4.12 GHz(14.6%)。因此，该天线可用于单向辐射的L波段和S波段的各种无线通信。天线高度3种状态下在其工作频段内的模拟实现增益分别大于6 dB (H=271 mm)、8.5 dB (H=147 mm)和5 dB (H=57 mm)。在2.04 GHz ~ 3.56 GHz范围内，右旋圆极化发生在状态2(分数圆极化带宽=54%)，CP带宽优于标准单丝天线和先前提出的折纸锥形螺旋天线，而其他2种状态的极化在其工作频带内为线性或椭圆极化。
A novel ultra-wideband origami reconfigurable quasi-taper helical antenna
This paper presents a novel design of ultrawideband origami quasi-taper antenna that can be reconfigured to operate from 1.28 GHz to 4.12 GHz at 3 different states of height, and the operating bandwidths at the 3 states are respectively 1.28 GHz-1.64 GHz (25%), 1.64 GHz-3.56 GHz (74%) and 3.56 GHz-4.12 GHz (14.6%). Therefore, this antenna can be applied for kinds of wireless communications in L band and S band with unidirectional radiations. Simulated realized gain at the 3 states of antenna height in their operating frequency bands are respectively greater than 6 dB (H=271 mm), 8.5 dB (H=147 mm) and 5 dB (H=57 mm). Right-hand circular polarization happens at state 2 from 2.04 GHz to 3.56 GHz (fractional circular polarization bandwidth=54%), and the CP bandwidth is better than the standard monofilar and previously proposed origami conical spiral antenna, while polarizations at the other 2 states are either linear or elliptical in their operating frequency bands.
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