Compact and Wideband Millimeter-Wave 3-D Printing Filtering Antenna With High Selectivity Based on Half-Mode Groove Gap Waveguide

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

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-01 DOI:10.1109/LAWP.2025.3584789

Gang Zhang;Hongtao Gu;Jinxuan Ni;Hao Yu;Yanqun Liu;Xin Zhou;Jiquan Yang;Jiasheng Hong

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引用次数: 0

Abstract

This letter presents a compact and wideband millimeter-wave 3-D printing filtering antenna with high selectivity based on half-mode groove gap waveguide (HM-GGW). To begin with, a fifth-order bandpass filter (BPF) is developed using two HM-GGW resonators (HM-GGWRs) and three iris resonators. Four flexible transmission zeros (TZs) are generated by cross-coupling and bypass coupling. The number and positions of the TZs can be elaborately adjusted by a disturbed pin on the metal cover plate. Then, based on the reflection coefficient matching principle, the second port of the original BPF is replaced with a stepped open-ended waveguide, and finally, a filtering antenna is realized, inheriting all the favorable performance characteristics of the BPF. For verification, a fifth-order filtering antenna prototype working in the Ka band is fabricated by 3-D printing technology. The prototype achieves a −10 dB IBW of 24.2% (ranging from 24.8 GHz to 31.62 GHz), features four adjustable radiation nulls (RNs), and exhibits a peak gain of 10.1 dBi along with a peak total efficiency of 97% across the entire operating band.

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基于半模槽隙波导的紧凑宽带高选择性毫米波3d打印滤波天线

本文提出了一种基于半模沟槽间隙波导（HM-GGW）的紧凑、宽带、高选择性的毫米波3d打印滤波天线。首先，利用两个HM-GGW谐振器（hm - ggws）和三个虹膜谐振器开发了一个五阶带通滤波器（BPF）。通过交叉耦合和旁路耦合产生4个柔性传输零点。TZs的数量和位置可以通过金属盖板上的扰动销精心调整。然后，根据反射系数匹配原理，将原BPF的第二端口替换为阶梯式开放式波导，最后实现滤波天线，继承了BPF的所有优良性能特征。为了验证，利用3d打印技术制作了工作在Ka波段的五阶滤波天线原型。该原型实现了24.2% （24.8 GHz至31.62 GHz）的- 10 dB IBW，具有四个可调辐射零点（RNs），整个工作频段的峰值增益为10.1 dBi，峰值总效率为97%。

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 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.