Aritra Roy;Rozenn Allanic;Thierry Le Gouguec;Francois Gallee;Erwan Fourn;Anne-Charlotte Amiaud;Hervé Legay
{"title":"A Compact Dual-Band Single-Feed Slotted Waveguide Array Antenna for Unidirectional Radiation Patterns","authors":"Aritra Roy;Rozenn Allanic;Thierry Le Gouguec;Francois Gallee;Erwan Fourn;Anne-Charlotte Amiaud;Hervé Legay","doi":"10.1109/TAP.2024.3484150","DOIUrl":null,"url":null,"abstract":"A dual-band slotted waveguide array (SWA) antenna is designed using a single waveguide by placing the radiating slots for 18 and 24 GHz on the same antenna aperture. These bands are excited using a single excitation point through a conventional waveguide feeding technique to radiate unidirectional radiation patterns of the same polarization. Theoretical analyses are carried out to study the conductance of the slots to understand their effects on the dual-band performance. Numerical analyses are performed to optimize the antenna by considering mutual coupling. The antenna is fabricated using stereolithography (SLA) and direct metal laser sintering (DMLS) processes to compare its performance in different additive manufacturing techniques. In characterizing the fabricated prototype, an impedance matching of \n<inline-formula> <tex-math>$|S_{11}|\\lt -10$ </tex-math></inline-formula>\n dB and the boresight antenna gains of 14 and 17.4 dBi are measured in these bands with unidirectional and linearly polarized radiation patterns. A quantitative comparison among dual-band SWA antennas is presented at the end of this article to highlight the uniqueness of the proposed approach over the state-of-the-art solutions.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"72 12","pages":"9095-9102"},"PeriodicalIF":4.6000,"publicationDate":"2024-10-25","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/10736399/","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}
A Compact Dual-Band Single-Feed Slotted Waveguide Array Antenna for Unidirectional Radiation Patterns
A dual-band slotted waveguide array (SWA) antenna is designed using a single waveguide by placing the radiating slots for 18 and 24 GHz on the same antenna aperture. These bands are excited using a single excitation point through a conventional waveguide feeding technique to radiate unidirectional radiation patterns of the same polarization. Theoretical analyses are carried out to study the conductance of the slots to understand their effects on the dual-band performance. Numerical analyses are performed to optimize the antenna by considering mutual coupling. The antenna is fabricated using stereolithography (SLA) and direct metal laser sintering (DMLS) processes to compare its performance in different additive manufacturing techniques. In characterizing the fabricated prototype, an impedance matching of
$|S_{11}|\lt -10$
dB and the boresight antenna gains of 14 and 17.4 dBi are measured in these bands with unidirectional and linearly polarized radiation patterns. A quantitative comparison among dual-band SWA antennas is presented at the end of this article to highlight the uniqueness of the proposed approach over the state-of-the-art solutions.
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