{"title":"一种新型交叉环滤波器结构的双极化滤波偶极子天线","authors":"Rong Ting Jin;Yao Zhang","doi":"10.1109/LAWP.2025.3578678","DOIUrl":null,"url":null,"abstract":"This letter presents a different dual-polarized filtering antenna design method by inserting a novel crossover ring filter into a conventional balun-feed dipole antenna structure. The performance of the crossover ring filter structure is first analyzed, revealing that different port selections yield distinct stopband effects. Specifically, exciting the horizontal ports of the crossover structure introduces a stopband at upper frequencies while selecting vertical ports generates a stopband at lower frequencies. Leveraging this phenomenon, two third-order crossover ring structures are orthogonally positioned beneath the radiating arms for dual-polarization operation realization. The integration of this structure enables the antenna to achieve the desired bandpass radiation response. For verification, the proposed antenna was fabricated and tested. The results indicate that the antenna achieves an impedance bandwidth of 1.88 GHz to 2.41 GHz, two controllable radiation nulls, and an out-of-band radiation suppression level exceeding 19 dB. These advantages make it an excellent candidate for base station antenna systems.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"2984-2988"},"PeriodicalIF":4.8000,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dual-Polarized Filtering Dipole Antenna Using a Novel Crossover Ring Filter Structure\",\"authors\":\"Rong Ting Jin;Yao Zhang\",\"doi\":\"10.1109/LAWP.2025.3578678\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This letter presents a different dual-polarized filtering antenna design method by inserting a novel crossover ring filter into a conventional balun-feed dipole antenna structure. The performance of the crossover ring filter structure is first analyzed, revealing that different port selections yield distinct stopband effects. Specifically, exciting the horizontal ports of the crossover structure introduces a stopband at upper frequencies while selecting vertical ports generates a stopband at lower frequencies. Leveraging this phenomenon, two third-order crossover ring structures are orthogonally positioned beneath the radiating arms for dual-polarization operation realization. The integration of this structure enables the antenna to achieve the desired bandpass radiation response. For verification, the proposed antenna was fabricated and tested. The results indicate that the antenna achieves an impedance bandwidth of 1.88 GHz to 2.41 GHz, two controllable radiation nulls, and an out-of-band radiation suppression level exceeding 19 dB. These advantages make it an excellent candidate for base station antenna systems.\",\"PeriodicalId\":51059,\"journal\":{\"name\":\"IEEE Antennas and Wireless Propagation Letters\",\"volume\":\"24 9\",\"pages\":\"2984-2988\"},\"PeriodicalIF\":4.8000,\"publicationDate\":\"2025-06-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Antennas and Wireless Propagation Letters\",\"FirstCategoryId\":\"94\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/11030239/\",\"RegionNum\":2,\"RegionCategory\":\"计算机科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Antennas and Wireless Propagation Letters","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/11030239/","RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
Dual-Polarized Filtering Dipole Antenna Using a Novel Crossover Ring Filter Structure
This letter presents a different dual-polarized filtering antenna design method by inserting a novel crossover ring filter into a conventional balun-feed dipole antenna structure. The performance of the crossover ring filter structure is first analyzed, revealing that different port selections yield distinct stopband effects. Specifically, exciting the horizontal ports of the crossover structure introduces a stopband at upper frequencies while selecting vertical ports generates a stopband at lower frequencies. Leveraging this phenomenon, two third-order crossover ring structures are orthogonally positioned beneath the radiating arms for dual-polarization operation realization. The integration of this structure enables the antenna to achieve the desired bandpass radiation response. For verification, the proposed antenna was fabricated and tested. The results indicate that the antenna achieves an impedance bandwidth of 1.88 GHz to 2.41 GHz, two controllable radiation nulls, and an out-of-band radiation suppression level exceeding 19 dB. These advantages make it an excellent candidate for base station antenna systems.
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.