Wenhao Tan;Yijing He;Hao Luo;Guoqiang Zhao;Houjun Sun
{"title":"A Wideband High-Efficiency Side-Connected Magnetoelectric Dipole Antenna Array Using Novel Feeding Technology for W-Band","authors":"Wenhao Tan;Yijing He;Hao Luo;Guoqiang Zhao;Houjun Sun","doi":"10.1109/TAP.2024.3435567","DOIUrl":null,"url":null,"abstract":"In this communication, a wideband and high-efficiency \n<inline-formula> <tex-math>$8\\times 8$ </tex-math></inline-formula>\n antenna array is proposed for W-band. This antenna array is composed of three parts: the magnetoelectric (ME) dipole radiating elements, the feeding structure for \n<inline-formula> <tex-math>$2\\times 2$ </tex-math></inline-formula>\n subarray, and the feeding network. The proposed high-performance ME-dipole element has side connections on both sides of the two radiating patches, forming a dumbbell-shaped slot in the middle. This novel structure contributes to wide bandwidth (BW), high efficiency, and manufacturing suitability in high frequencies around 100 GHz. Moreover, each \n<inline-formula> <tex-math>$2\\times 2$ </tex-math></inline-formula>\n ME-dipole subarray is excited through four aperture-coupled slots right below the ME dipoles. The main part of the proposed feeding structure is a resonant cavity with a metal bar arranged in the middle to divide the waves, significantly improving the impedance BW of the subarray. The proposed feeding network exploits novel U-shaped T-junctions with improved low-frequency performance for widened BW. Finally, a cooperate ridge gap waveguide (RGW) feeding network is employed to feed the whole \n<inline-formula> <tex-math>$8\\times 8$ </tex-math></inline-formula>\n antenna array through coupling slots right below the cavities. To verify the design, a prototype of the proposed antenna array is fabricated and measured. A measured BW of 28.5% from 81.5 to 108.6 GHz with a maximum gain and a radiation efficiency of 26.6 dB and 86.8% are achieved. The proposed antenna array has significant potential in W-band applications, such as high data-rate communication, high-gain detection, and high-resolution imaging systems.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":4.6000,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Antennas and Propagation","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/10623375/","RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
In this communication, a wideband and high-efficiency
$8\times 8$
antenna array is proposed for W-band. This antenna array is composed of three parts: the magnetoelectric (ME) dipole radiating elements, the feeding structure for
$2\times 2$
subarray, and the feeding network. The proposed high-performance ME-dipole element has side connections on both sides of the two radiating patches, forming a dumbbell-shaped slot in the middle. This novel structure contributes to wide bandwidth (BW), high efficiency, and manufacturing suitability in high frequencies around 100 GHz. Moreover, each
$2\times 2$
ME-dipole subarray is excited through four aperture-coupled slots right below the ME dipoles. The main part of the proposed feeding structure is a resonant cavity with a metal bar arranged in the middle to divide the waves, significantly improving the impedance BW of the subarray. The proposed feeding network exploits novel U-shaped T-junctions with improved low-frequency performance for widened BW. Finally, a cooperate ridge gap waveguide (RGW) feeding network is employed to feed the whole
$8\times 8$
antenna array through coupling slots right below the cavities. To verify the design, a prototype of the proposed antenna array is fabricated and measured. A measured BW of 28.5% from 81.5 to 108.6 GHz with a maximum gain and a radiation efficiency of 26.6 dB and 86.8% are achieved. The proposed antenna array has significant potential in W-band applications, such as high data-rate communication, high-gain detection, and high-resolution imaging systems.
期刊介绍:
IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas, including design and development, and in the propagation of electromagnetic waves, including scattering, diffraction, and interaction with continuous media; and applications pertaining to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques