Millimeter-Wave Endfire Circularly Polarized Phased Array With Wideband Wide-Angle Scanning

IF 5.8 1区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Transactions on Antennas and Propagation Pub Date : 2024-09-04 DOI:10.1109/TAP.2024.3451158

Dinuo Bu;Shi-Wei Qu

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Abstract

An endfire circularly polarized (CP) phased array with wideband wide-angle scanning capability in the millimeter-wave band is proposed. The array elements consist of notched substrate integrated waveguide (SIW) dipole antennas with two metal plates, specifically designed for endfire radiation. The metal plates and two patches are employed to achieve wideband CP radiation. In addition, by incorporating a subtracted section and slotting the metal plates, the CP wide-angle scanning performance of the proposed antenna is significantly improved. To validate the design, a

$1\times 16$

array prototype is simulated, fabricated, and measured. The measured results demonstrate that the proposed antenna can achieve ±45° scanning in 25–32.5 GHz (26.1%) and ±60° scanning in 26.2–30.5 GHz (15.2%) while maintaining active voltage standing wave ratios (VSWRs) below 3 and axial ratios (ARs) below 3 dB. Moreover, the maximum scanning loss is approximately 4 dB. The simulated and measured results show a good agreement.

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毫米波端射圆极化相控阵与宽带广角扫描

本文提出了一种在毫米波频段具有宽带广角扫描能力的端射圆极化（CP）相控阵。阵列元件由带缺口的基底集成波导（SIW）偶极子天线和两块金属板组成，专为端射辐射而设计。金属板和两个贴片用于实现宽带 CP 辐射。此外，通过在金属板上加入减去部分和开槽，拟议天线的 CP 广角扫描性能得到了显著提高。为了验证该设计，我们仿真、制造并测量了一个 $1\times 16$ 阵列原型。测量结果表明，在保持有源电压驻波比（VSWRs）低于 3 和轴向比（ARs）低于 3 dB 的情况下，所提出的天线可以在 25-32.5 GHz 频率范围内实现 ±45° 扫描（26.1%），在 26.2-30.5 GHz 频率范围内实现 ±60° 扫描（15.2%）。此外，最大扫描损耗约为 4 dB。模拟和测量结果显示出良好的一致性。

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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

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