{"title":"基于磁偶极子定向器的宽带高增益低轮廓毫米波圆极化端射天线","authors":"Sha Xu, Ju Yang, Shaowei Liao, Guiping Jin","doi":"10.1002/mop.70330","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>This letter proposes a wideband, high-gain, low-profile circularly polarized end-fire antenna for 5G millimeter-wave applications. The antenna consists of a substrate integrated waveguide (SIW) circularly polarized feeder, dual-polarized directors, and coplanar waveguide (CPW)-SIW transitions, with a low-profile height of 0.14 <i>λ</i><sub>0</sub>. The circularly polarized feeder exhibits wide bandwidth and reliable end-fire radiation, while the dual-polarized magnetic dipole directors enhance the end-fire gain. Based on the feeder and magnetic dipole directors, a circularly polarized antenna is designed and fabricated. The −10 dB impedance bandwidth reaches 29.48%, with a peak gain of 11.14 dBic, demonstrating good impedance matching and high gain within the 5G millimeter-wave band. Furthermore, the entire structure of the proposed antenna can be conveniently implemented using a single-layer PCB substrate, achieving the desired low-profile height.</p>\n </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"67 9","pages":""},"PeriodicalIF":1.2000,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Wideband High-Gain Low-Profile Millimeter-Wave Circularly Polarized End-Fire Antenna Based on Magnetic Dipole Directors\",\"authors\":\"Sha Xu, Ju Yang, Shaowei Liao, Guiping Jin\",\"doi\":\"10.1002/mop.70330\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n <p>This letter proposes a wideband, high-gain, low-profile circularly polarized end-fire antenna for 5G millimeter-wave applications. The antenna consists of a substrate integrated waveguide (SIW) circularly polarized feeder, dual-polarized directors, and coplanar waveguide (CPW)-SIW transitions, with a low-profile height of 0.14 <i>λ</i><sub>0</sub>. The circularly polarized feeder exhibits wide bandwidth and reliable end-fire radiation, while the dual-polarized magnetic dipole directors enhance the end-fire gain. Based on the feeder and magnetic dipole directors, a circularly polarized antenna is designed and fabricated. The −10 dB impedance bandwidth reaches 29.48%, with a peak gain of 11.14 dBic, demonstrating good impedance matching and high gain within the 5G millimeter-wave band. Furthermore, the entire structure of the proposed antenna can be conveniently implemented using a single-layer PCB substrate, achieving the desired low-profile height.</p>\\n </div>\",\"PeriodicalId\":18562,\"journal\":{\"name\":\"Microwave and Optical Technology Letters\",\"volume\":\"67 9\",\"pages\":\"\"},\"PeriodicalIF\":1.2000,\"publicationDate\":\"2025-08-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Microwave and Optical Technology Letters\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/mop.70330\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microwave and Optical Technology Letters","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/mop.70330","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
Wideband High-Gain Low-Profile Millimeter-Wave Circularly Polarized End-Fire Antenna Based on Magnetic Dipole Directors
This letter proposes a wideband, high-gain, low-profile circularly polarized end-fire antenna for 5G millimeter-wave applications. The antenna consists of a substrate integrated waveguide (SIW) circularly polarized feeder, dual-polarized directors, and coplanar waveguide (CPW)-SIW transitions, with a low-profile height of 0.14 λ0. The circularly polarized feeder exhibits wide bandwidth and reliable end-fire radiation, while the dual-polarized magnetic dipole directors enhance the end-fire gain. Based on the feeder and magnetic dipole directors, a circularly polarized antenna is designed and fabricated. The −10 dB impedance bandwidth reaches 29.48%, with a peak gain of 11.14 dBic, demonstrating good impedance matching and high gain within the 5G millimeter-wave band. Furthermore, the entire structure of the proposed antenna can be conveniently implemented using a single-layer PCB substrate, achieving the desired low-profile height.
期刊介绍：
Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas.
- RF, Microwave, and Millimeter Waves
- Antennas and Propagation
- Submillimeter-Wave and Infrared Technology
- Optical Engineering
All papers are subject to peer review before publication
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