Dual Circularly Polarized and Linearly Sweeping Leaky-Wave Antenna

被引：0

作者：

Lei, Siyuan ^{[1
]}

Wei, Gao ^{[1
]}

Han, Kangkang ^{[1
]}

Qiu, Tiancheng ^{[1
]}

Wang, Min ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Sch Elect & Informat, Xian 710129, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2024年 / 23卷 / 01期

关键词：

Linearity; Spirals; Antennas; Transmission line antennas; Antenna measurements; Transmission line measurements; Power transmission lines; Circular polarization (CP); linearity longitudinal asymmetry; periodic leaky-wave antennas (PLWAs); spoof surface plasmon polaritons (SSPPs); FREQUENCY DIVERSE ARRAY; TRANSMIT BEAMPATTERN SYNTHESIS; ALGORITHM; DESIGN; RANGE; RADAR;

D O I：

10.1109/LAWP.2023.3325214

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 dual circularly polarized periodic leaky-wave antenna based on spoof surface plasmon polaritons (SSPPs) with linearly sweeping beams is proposed. The antenna can simultaneously radiate left-handed circular polarization (LHCP) and right-handed circular polarization (RHCP) beams. Single-arm Archimedean spirals serve as radiators and are designed. Based on linearity analysis and curve fitting, SSPPs structure with potentially linear scanning ability are selected. Finally, the axial ratio (AR) and S-parameter for the proposed SSPPs antenna with spiral radiators are optimized around the broadside frequency using longitudinally asymmetric analysis. A prototype is fabricated and measured results show that the proposed antenna achieves a relative 3 dB AR bandwidth of 31.6% (8-11 GHz) with the same LHCP and RHCP scanning range of 65 degrees and linearly sweeping ability.

引用

页码：369 / 373

页数：5

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