{"title":"一种抑制交叉极化的宽带可重构2位发射阵列天线","authors":"Bingjie Xiang;Kwai-Man Luk","doi":"10.1109/LAWP.2025.3587290","DOIUrl":null,"url":null,"abstract":"A wideband 2-bit transmitarray antenna (TA) with two-dimensional (2-D) electronically beam-scanning capability is presented. Using the receive-and-transmit method, the reconfigurable TA (RTA) element is designed by combining two reconfigurable magnetoelectric (ME) dipole antennas. PIN diodes are integrated in the RTA element to control the current path. Hence, the receiving and transmitting layers can independently provide a 90° and 180° phase shift to achieve the 2-bit resolution. Furthermore, a novel prephase distribution is introduced in the TA aperture to suppress the cross-polarization levels. As a demonstration, a wideband electronically RTA with 11 × 11 elements is designed, fabricated and measured. The measured results show the prototype can achieve a 3 dB gain bandwidth of 32%, a peak gain of 21 dBi, and a peak aperture efficiency of 37%. The measured cross-polarization levels are suppressed lower than 20 dB. Moreover, the proposed RTA can support the wide scanning angles from −50° to +50° in both E- and H-planes within the operating bandwidth.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"3238-3242"},"PeriodicalIF":4.8000,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Wideband Reconfigurable 2-Bit Transmitarray Antenna With Cross-Polarization Suppression\",\"authors\":\"Bingjie Xiang;Kwai-Man Luk\",\"doi\":\"10.1109/LAWP.2025.3587290\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A wideband 2-bit transmitarray antenna (TA) with two-dimensional (2-D) electronically beam-scanning capability is presented. Using the receive-and-transmit method, the reconfigurable TA (RTA) element is designed by combining two reconfigurable magnetoelectric (ME) dipole antennas. PIN diodes are integrated in the RTA element to control the current path. Hence, the receiving and transmitting layers can independently provide a 90° and 180° phase shift to achieve the 2-bit resolution. Furthermore, a novel prephase distribution is introduced in the TA aperture to suppress the cross-polarization levels. As a demonstration, a wideband electronically RTA with 11 × 11 elements is designed, fabricated and measured. The measured results show the prototype can achieve a 3 dB gain bandwidth of 32%, a peak gain of 21 dBi, and a peak aperture efficiency of 37%. The measured cross-polarization levels are suppressed lower than 20 dB. Moreover, the proposed RTA can support the wide scanning angles from −50° to +50° in both E- and H-planes within the operating bandwidth.\",\"PeriodicalId\":51059,\"journal\":{\"name\":\"IEEE Antennas and Wireless Propagation Letters\",\"volume\":\"24 9\",\"pages\":\"3238-3242\"},\"PeriodicalIF\":4.8000,\"publicationDate\":\"2025-07-08\",\"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/11074266/\",\"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/11074266/","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}
A Wideband Reconfigurable 2-Bit Transmitarray Antenna With Cross-Polarization Suppression
A wideband 2-bit transmitarray antenna (TA) with two-dimensional (2-D) electronically beam-scanning capability is presented. Using the receive-and-transmit method, the reconfigurable TA (RTA) element is designed by combining two reconfigurable magnetoelectric (ME) dipole antennas. PIN diodes are integrated in the RTA element to control the current path. Hence, the receiving and transmitting layers can independently provide a 90° and 180° phase shift to achieve the 2-bit resolution. Furthermore, a novel prephase distribution is introduced in the TA aperture to suppress the cross-polarization levels. As a demonstration, a wideband electronically RTA with 11 × 11 elements is designed, fabricated and measured. The measured results show the prototype can achieve a 3 dB gain bandwidth of 32%, a peak gain of 21 dBi, and a peak aperture efficiency of 37%. The measured cross-polarization levels are suppressed lower than 20 dB. Moreover, the proposed RTA can support the wide scanning angles from −50° to +50° in both E- and H-planes within the operating bandwidth.
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.