A Dual-Band Dual-Circularly Polarized Folded Transmitarray Antenna With Compact Aperture

IF 4.8 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-23 DOI:10.1109/LAWP.2025.3581942

Jin Wang;Jinbo Liu;Qingxin Guo;Hui Zhang;Zengrui Li;Jiming Song

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引用次数: 0

Abstract

A dual-band dual-circular polarization (CP) folded transmitarray (FTA) antenna is presented, radiating left- and right-hand CP waves at 10.4 GHz and 13.4 GHz, respectively. This innovative FTA incorporates receiver-transmitter metasurface (RTMS), polarization rotating metasurface, and a dual-band linear polarization (LP) patch antenna. The RTMS effectively reflects and transmits distinct LP waves in two bands while providing phase compensation. A phase compensation method that considers the phase center of the feed is proposed, by which the axial ratio characteristic is enhanced. Measurement results demonstrate that the proposed FTA achieves high performance with the following characteristics: In the lower band, it achieves a 3 dB gain bandwidth (BW) of 10.2% (10.1 GHz to 11.2 GHz) and a 3 dB axial ratio BW of 14.3% (10.2 GHz to 11.7 GHz), with peak radiation efficiency reaching 23.5%. The higher band exhibits a 3 dB gain BW of 7.0% (12.9 GHz to 13.9 GHz) and a 3 dB axial ratio BW of 11.9% (12.7 GHz to 14.3 GHz), accompanied by a peak efficiency of 8.9%.

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小口径双频双圆极化折叠发射阵列天线

提出了一种双频双圆极化（CP）折叠发射阵列（FTA）天线，该天线分别辐射10.4 GHz和13.4 GHz的左、右CP波。这种创新的FTA包含了接收-发射超表面（RTMS）、极化旋转超表面和双频线性极化（LP）贴片天线。RTMS在提供相位补偿的同时，有效地反射和传输两个波段的不同LP波。提出了一种考虑进给相位中心的相位补偿方法，增强了轴比特性。测试结果表明，本文提出的FTA具有以下特点：下频段3db增益带宽（BW）为10.2% (10.1 GHz ~ 11.2 GHz)， 3db轴比BW为14.3% (10.2 GHz ~ 11.7 GHz)，峰值辐射效率达到23.5%。高频段的3db增益BW为7.0% (12.9 GHz至13.9 GHz)， 3db轴比BW为11.9% (12.7 GHz至14.3 GHz)，峰值效率为8.9%。

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来源期刊

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.