一种基于两种不同辐射体类型的毫米波前向扫描周期漏波天线

IF 6.7 1区计算机科学 Q1 Physics and Astronomy

Progress in Electromagnetics Research-Pier Pub Date : 2020-01-01 DOI:10.2528/pier20072202

Zhang Yiming, Hui Liu, Chenyang Meng, Yuxin Lin, Y. Zhang, E. Forsberg, Sailing He

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引用次数: 7

摘要

提出了一种周期毫米波漏波天线(LWA)，它具有两种不同类型的辐射单元，可以实现向后和正向辐射。LWA的单元单元由两条四分之一波长微带线和两个带有s形四分之一波长开路桩的波纹基板集成波导单元组成。除了两个平行的边缘辐射器外，还有一个具有倾斜角度的单个蚀刻横向槽作为辅助辐射器，保证了大频率范围内的阻抗匹配，实现了从后向到前向扫描。我们通过仿真分析了所提出的设计，并对制作的原型进行了表征，发现它具有良好的辐射性能，包括宽的阻抗带宽。测量结果表明，在k波段工作频率范围内，峰值增益为11至15.8 dBi，扫描角度范围为−34◦至+22◦。

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A NOVEL MILLIMETER-WAVE BACKWARD TO FORWARD SCANNING PERIODIC LEAKY-WAVE ANTENNA BASED ON TWO DIFFERENT RADIATOR TYPES

A periodic millimeter wave leaky-wave antenna (LWA), which has two different types of radiator elements that enable backward to forward radiation, is proposed. The unit-cell of the LWA consists of two quarter-wavelength microstrip lines and two corrugated substrate integrated waveguide (CSIW) cells with S-shaped quarter-wavelength open-circuit stubs. In addition to two parallel edge radiators, a single etched transverse slot with a tilt angle acts as an ancillary radiator, which ensures impedance matching in a large frequency range and achieves the backward to forward scanning. We analyze the proposed design through simulations, characterize a fabricated prototype, and find it to have good radiation properties including broad impedance bandwidth. The measurement results show a high peak gain from 11 to 15.8 dBi with a large scanning angle range from −34◦ to +22◦ in the K-band operating frequency range.

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来源期刊

Progress in Electromagnetics Research-Pier 物理-电信学

CiteScore

7.20

自引率

3.00%

发文量

审稿时长

1.3 months

期刊介绍： Progress In Electromagnetics Research (PIER) publishes peer-reviewed original and comprehensive articles on all aspects of electromagnetic theory and applications. This is an open access, on-line journal PIER (E-ISSN 1559-8985). It has been first published as a monograph series on Electromagnetic Waves (ISSN 1070-4698) in 1989. It is freely available to all readers via the Internet.