Millimeter-Wave Wideband, High-Gain, Dual-Polarized Filtering Patch Antenna With Y-Shaped Probe and Shorted C-Shaped Strip

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

IEEE Transactions on Antennas and Propagation Pub Date : 2024-09-27 DOI:10.1109/TAP.2024.3457168

Yiqing Sun;Hao-Tao Hu;Chi Hou Chan

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Abstract

This communication presents a wideband high-gain dual-polarized filtering patch antenna working in the millimeter-wave band. A Y-shaped feeding probe is proposed to excite the square patches. This novel feeding scheme provides a high-pass filtering response with a wide bandwidth. Four center-shorted C-shaped strips are loaded to increase the lower stopband’s suppression level and the passband’s radiation gain. While the suppression in the higher stopband is attributed to a stepped impedance substrate-integrated waveguide (SIW) feeding structure. Subsequently, a partially reflecting surface structure is designed for gain enhancement, forming a dual-polarized Fabry-Pérot Cavity (FPC) filtering antenna. When the two ports are respectively excited, the −10 dB impedance bandwidths are 21.9% and 18.5%, the measured peak gains reach 15.9 and 15.5 dBi, and the 3 dB gain bandwidths are 17.2% and 18.3%. Excellent rejection levels of better than 24 dB are achieved in the stopbands for both polarization states.

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毫米波宽带、高增益、双偏振滤波贴片天线，带 Y 型探头和短 C 型带

本文介绍了一种工作在毫米波频段的宽带高增益双极化滤波贴片天线。文中提出了一种 Y 形馈电探针来激励方形贴片。这种新颖的馈电方案可提供具有宽带宽的高通滤波响应。加载了四个中心短路的 C 形条，以提高低阻带的抑制水平和通带的辐射增益。而高阻带的抑制则归功于阶跃阻抗基底集成波导（SIW）馈电结构。随后，为了提高增益，设计了一个部分反射表面结构，形成了一个双极化法布里-佩罗腔（FPC）滤波天线。当两个端口分别激励时，-10 dB 阻抗带宽分别为 21.9% 和 18.5%，测量峰值增益分别达到 15.9 和 15.5 dBi，3 dB 增益带宽分别为 17.2% 和 18.3%。在两种极化状态下，止带的抑制水平都达到了优于 24 dB 的出色水平。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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