Wideband High Gain and Low RCS Fabry–Perot Antenna Using the Single Layer Partially Reflective Surface

IF 1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Microwave and Optical Technology Letters Pub Date : 2024-12-15 DOI:10.1002/mop.70045

Haoyong Ding, Ning Liu, Tao Jiang, Xianjun Sheng, Xiangyan Liu

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Abstract

This letter presents a novel wideband high gain and low radar cross section reduction (RCS) Fabry–Perot (FP) antenna using a single layer partially reflective surface (PRS). Different from the traditional PRS unit, the proposed PRS unit can broaden the gain bandwidth and reduce the in-band RCS. The designed PRS distributes the radiated waves in-phase through the positive phase gradient compensation and weakens the reflection of the incident waves through the phase cancellation. Compared to the previous wideband low RCS FP antennas, we first achieved the 3 dB gain bandwidth covering the 10 dB impedance bandwidth. Both the simulation and measured results verify the performance of the proposed FP antenna. The results show that the proposed FP antenna has a 10 dB impedance bandwidth of 8.6–11.8 GHz (31.4%) and an RCS reduction bandwidth of 7.9–14.0 GHz (55.7%) under the normal incidence. The 3 dB gain bandwidth and the maximum realized gain are 8.3–12.0 GHz (36.5%) and 16.3 dBi.

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基于单层部分反射表面的宽带高增益低RCS法布里-珀罗天线

本文介绍了一种采用单层部分反射表面（PRS）的新型宽带高增益和低雷达截面减小（RCS）法布里-珀罗（FP）天线。与传统的PRS单元不同，所提出的PRS单元可以拓宽增益带宽，降低带内RCS。设计的PRS通过正相位梯度补偿使辐射波同相分布，通过相位抵消使入射波的反射减弱。与以往的宽带低RCS FP天线相比，我们首次实现了覆盖10db阻抗带宽的3db增益带宽。仿真和实测结果验证了该天线的性能。结果表明：在正常入射下，FP天线的10 dB阻抗带宽为8.6 ~ 11.8 GHz (31.4%)， RCS降频带宽为7.9 ~ 14.0 GHz（55.7%）。3db增益带宽为8.3 ~ 12.0 GHz(36.5%)，最大实现增益为16.3 dBi。

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来源期刊

Microwave and Optical Technology Letters 工程技术-工程：电子与电气

CiteScore

3.40

自引率

20.00%

发文量

371

审稿时长

4.3 months

期刊介绍： Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication