Wenqing Liu;Shufang Li;Lijie Chen;Chen Zhang;Meijun Qu;Li Deng
{"title":"双向辐射双频低轮廓混合天线","authors":"Wenqing Liu;Shufang Li;Lijie Chen;Chen Zhang;Meijun Qu;Li Deng","doi":"10.1109/LAWP.2025.3556996","DOIUrl":null,"url":null,"abstract":"This letter presents a novel dual-band, low-profile hybrid folded antenna capable of generating bidirectional independent beams. The proposed design operates as a liked-folded reflectarray antenna at the low band, producing <italic>x</i>-polarized high-gain beams in the lower hemisphere, and as a folded transmitarray antenna at the high band, generating <italic>y</i>-polarized high-gain beams in the upper hemisphere. A prototype of the dual-band hybrid folded antenna was designed, fabricated, and measured. Measurement results show a <italic>y</i>-polarized beam in the upper hemisphere, with a maximum gain of 31.2 dBi at 29 GHz, a peak aperture efficiency of 35.5%, and a 3 dB gain bandwidth of 8.2%. Simultaneously, an <italic>x</i>-polarized beam is generated in the lower hemisphere, exhibiting a maximum gain of 22.9 dBi at 12.7 GHz, a peak aperture efficiency of 28.9%, and a 3 dB gain bandwidth of 26.3%. The proposed antenna retains the low-profile and high-gain advantages of traditional folded antennas, addressing space utilization limitations, effectively extending the conventional unidirectional dual-band folded structure to support bidirectional operation.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 7","pages":"2129-2133"},"PeriodicalIF":4.8000,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dual-Band Low-Profile Hybrid Antenna for Bidirectional Radiation\",\"authors\":\"Wenqing Liu;Shufang Li;Lijie Chen;Chen Zhang;Meijun Qu;Li Deng\",\"doi\":\"10.1109/LAWP.2025.3556996\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This letter presents a novel dual-band, low-profile hybrid folded antenna capable of generating bidirectional independent beams. The proposed design operates as a liked-folded reflectarray antenna at the low band, producing <italic>x</i>-polarized high-gain beams in the lower hemisphere, and as a folded transmitarray antenna at the high band, generating <italic>y</i>-polarized high-gain beams in the upper hemisphere. A prototype of the dual-band hybrid folded antenna was designed, fabricated, and measured. Measurement results show a <italic>y</i>-polarized beam in the upper hemisphere, with a maximum gain of 31.2 dBi at 29 GHz, a peak aperture efficiency of 35.5%, and a 3 dB gain bandwidth of 8.2%. Simultaneously, an <italic>x</i>-polarized beam is generated in the lower hemisphere, exhibiting a maximum gain of 22.9 dBi at 12.7 GHz, a peak aperture efficiency of 28.9%, and a 3 dB gain bandwidth of 26.3%. The proposed antenna retains the low-profile and high-gain advantages of traditional folded antennas, addressing space utilization limitations, effectively extending the conventional unidirectional dual-band folded structure to support bidirectional operation.\",\"PeriodicalId\":51059,\"journal\":{\"name\":\"IEEE Antennas and Wireless Propagation Letters\",\"volume\":\"24 7\",\"pages\":\"2129-2133\"},\"PeriodicalIF\":4.8000,\"publicationDate\":\"2025-04-02\",\"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/10947327/\",\"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/10947327/","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-Band Low-Profile Hybrid Antenna for Bidirectional Radiation
This letter presents a novel dual-band, low-profile hybrid folded antenna capable of generating bidirectional independent beams. The proposed design operates as a liked-folded reflectarray antenna at the low band, producing x-polarized high-gain beams in the lower hemisphere, and as a folded transmitarray antenna at the high band, generating y-polarized high-gain beams in the upper hemisphere. A prototype of the dual-band hybrid folded antenna was designed, fabricated, and measured. Measurement results show a y-polarized beam in the upper hemisphere, with a maximum gain of 31.2 dBi at 29 GHz, a peak aperture efficiency of 35.5%, and a 3 dB gain bandwidth of 8.2%. Simultaneously, an x-polarized beam is generated in the lower hemisphere, exhibiting a maximum gain of 22.9 dBi at 12.7 GHz, a peak aperture efficiency of 28.9%, and a 3 dB gain bandwidth of 26.3%. The proposed antenna retains the low-profile and high-gain advantages of traditional folded antennas, addressing space utilization limitations, effectively extending the conventional unidirectional dual-band folded structure to support bidirectional operation.
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.