基于双空间谐波辐射的蝶形槽抑制阻带双波束SIW漏波天线

IF 4.6 1区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Antennas and Propagation Pub Date : 2025-01-27 DOI:10.1109/TAP.2025.3531140

Wei Zheng;Junhong Wang;Yunjie Geng;Zheng Li

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引用次数: 0

摘要

在这种通信中，提出了一种基于- 1和- 2空间谐波（SHs）辐射的阻带抑制双波束基片集成波导（SIW）漏波天线（LWA），并对其进行了分析和测量。首先，介绍了双波束LWA在两个SHs共存下的产生机理。然后，采用一种新型的蝴蝶形槽来抑制阻带（$\beta _{-1}P = \pi $），以提高辐射性能。通过微调狭缝的水平尺寸，可以抑制阻带，实现宽双波束连续扫描范围和宽阻抗带宽的LWA。此外，天线的带宽和辐射效率可以在一定范围内通过垂直尺寸灵活控制。为了验证设计，制作了一个原型并进行了测量。测量结果表明，该天线的峰值增益为14.5 dBi， - 1和- 2 SHs共存的双波束辐射带宽为14.5 ～ 17.5 GHz （18.75 GHz）%). The proposed antenna possesses the advantages of low cost, single layer, and dual-beam continuous frequency-scanning capability without stopband, thereby providing a promising candidate for mobile communication.

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A Dual-Beam SIW Leaky Wave Antenna With Butterfly-Shaped Slot and Suppressed Stopband Based on Radiation of Two Spatial Harmonics

In this communication, a dual-beam substrate-integrated waveguide (SIW) leaky wave antenna (LWA) with stopband suppression based on radiation of −1st and −2nd spatial harmonics (SHs) is proposed, analyzed, and measured. First, the generation mechanism of dual-beam LWA operating on the coexistence of two SHs is introduced. Then, a novel butterfly-shaped slot is adopted to suppress the stopband (

$\beta _{-1}P = \pi $

) to improve the radiation performance. By finely tuning the horizontal size of the slot, the stopband can be suppressed, and an LWA with a wide dual-beam continuous scanning range and wide impedance bandwidth can be realized. In addition, the bandwidth and radiation efficiency of the antenna can be flexibly controlled by the vertical size within a certain range. To validate the design, a prototype is fabricated and measured. The measured results show that the peak gain of the proposed antenna is 14.5 dBi and the dual-beam radiation bandwidth for the coexistence of −1st and −2nd SHs is from 14.5 to 17.5 GHz (18.75%). The proposed antenna possesses the advantages of low cost, single layer, and dual-beam continuous frequency-scanning capability without stopband, thereby providing a promising candidate for mobile communication.

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来源期刊

IEEE Transactions on Antennas and Propagation 工程技术-电信学

CiteScore

10.40

自引率

28.10%

发文量

968

审稿时长

4.7 months

期刊介绍： IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas, including design and development, and in the propagation of electromagnetic waves, including scattering, diffraction, and interaction with continuous media; and applications pertaining to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques