SIW Cavity-Fed Millimeter-Wave Circularly Polarized Filtenna Enabled With Custom-Designed Patches

IF 3.7 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-12-30 DOI:10.1109/LAWP.2024.3523920

Zhiyuan Chen;Zi-Hao Bian;Kun-Zhi Hu;Fan Yang;De-Yi Xiong;Dajiang Li;Min Xiang

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Abstract

In this letter, a millimeter-wave circularly polarized filtenna enabled with custom-designed patches is presented. The configuration of the filtenna is simple, which consists of an I-shaped substrate integrated waveguide (SIW) cavity, four square patches etched with cross slots, L-shaped stubs that are connected to the square patches, and regularly arranged shorting vias. The filtering response with controllable radiation nulls is facilitated by the I-shaped SIW cavity. The regularly-arranged shorting vias play a crucial role in the creation of an axial ratio (AR) minimum for the filtenna. Four square patches etched with cross slots contribute to the generation of the other two AR minima in the passband. Thus, a wide AR bandwidth is achieved. The gain value of the filtenna is ultimately enhanced by the introduction of L-shaped stubs, which alters the current distributions of the top patches. A prototype of the developed filtenna is fabricated and measured for validation. The measured results demonstrate an overlapped fractional bandwidth (where |S_l1| ≤ −10 dB and AR ≤ 3 dB) of 11.2% [(24.1 to 26.95) GHz] and a peak realized gain value of 10.4 dBi.

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SIW腔馈毫米波圆极化滤波器启用定制设计的贴片

在这封信中，一个毫米波圆极化滤波器启用了定制设计的贴片。该滤波器的结构很简单，由一个i形衬底集成波导（SIW）腔、四个蚀刻有交叉槽的方形贴片、连接到方形贴片的l形短桩以及规则排列的短通孔组成。i型SIW腔促进了具有可控辐射零点的滤波响应。规则排列的短通孔在为滤波器创造最小轴比（AR）方面起着至关重要的作用。四个带有交叉槽的方形补丁有助于在通带中产生另外两个AR最小值。因此，实现了较宽的AR带宽。该滤波器的增益值最终通过引入l型存根来提高，它改变了顶部贴片的电流分布。制作了所开发滤波器的原型并进行了测量以进行验证。测量结果表明，重叠分数带宽（其中|Sl1|≤- 10 dB和AR≤3 dB）为11.2%[(24.1至26.95)GHz]，峰值实现增益值为10.4 dBi。

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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.