A Transmission Line-Based Notch Structure With a Wide Range of Variation Notch Bandwidth

IF 3.4 0 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE microwave and wireless technology letters Pub Date : 2025-04-28 DOI:10.1109/LMWT.2025.3560659

Song-Zhao Zhou;Zhi-Yuan Zong;Wen Wu;Da-Gang Fang

{"title":"A Transmission Line-Based Notch Structure With a Wide Range of Variation Notch Bandwidth","authors":"Song-Zhao Zhou;Zhi-Yuan Zong;Wen Wu;Da-Gang Fang","doi":"10.1109/LMWT.2025.3560659","DOIUrl":null,"url":null,"abstract":"In this letter, a novel method is proposed to realize a wide range of variation notch bandwidth in a notch structure by changing the height of the mushroom-like resonator that is embedded in the dielectric layer of the transmission line (TL). The resonator consists of narrow strips and rectangular patches and is connected to the ground through metal vias, and a detailed analysis of its working mechanism and key parameters is provided based on the equivalent circuit. The <italic>Q</i> value of the resonant circuit shows that the notch bandwidth is relevant to the equivalent capacitance ratio, which explains that the notch bandwidth can be flexibly adjusted by adjusting the height of the resonator. Its applicability to other TLs is also discussed. Furthermore, the notch structure can be applied to various antennas without affecting their radiation characteristics. Three validation structures are fabricated: narrowband and broadband notched microstrip lines, and a dual-band notched antenna with low cross-polarization, all the measured results show effects consistent with simulation predictions.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"35 7","pages":"981-984"},"PeriodicalIF":3.4000,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE microwave and wireless technology letters","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10978875/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"0","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

In this letter, a novel method is proposed to realize a wide range of variation notch bandwidth in a notch structure by changing the height of the mushroom-like resonator that is embedded in the dielectric layer of the transmission line (TL). The resonator consists of narrow strips and rectangular patches and is connected to the ground through metal vias, and a detailed analysis of its working mechanism and key parameters is provided based on the equivalent circuit. The Q value of the resonant circuit shows that the notch bandwidth is relevant to the equivalent capacitance ratio, which explains that the notch bandwidth can be flexibly adjusted by adjusting the height of the resonator. Its applicability to other TLs is also discussed. Furthermore, the notch structure can be applied to various antennas without affecting their radiation characteristics. Three validation structures are fabricated: narrowband and broadband notched microstrip lines, and a dual-band notched antenna with low cross-polarization, all the measured results show effects consistent with simulation predictions.

查看原文本刊更多论文

一种基于传输线的宽变化陷波带宽的陷波结构

本文提出了一种新颖的方法，通过改变嵌入在传输线（TL）介电层中的蘑菇状谐振器的高度，来实现在陷波结构中广泛变化的陷波带宽。该谐振器由窄条和矩形片组成，通过金属过孔与地连接，并基于等效电路对其工作机理和关键参数进行了详细分析。谐振电路的Q值表明，陷波带宽与等效电容比有关，这说明可以通过调节谐振腔的高度来灵活调节陷波带宽。本文还讨论了其对其他TLs的适用性。此外，该陷波结构可应用于各种天线而不影响其辐射特性。制作了窄带、宽带陷波微带线和低交叉极化双带陷波天线三种验证结构，测量结果与仿真预测一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

IEEE microwave and wireless technology letters

CiteScore

6.00

自引率

0.00%

发文量