{"title":"Reconfigurable transmission-type beamformer","authors":"J. Mazotta, L.Y. Chen, J. Chiao","doi":"10.1109/MWSYM.2000.861133","DOIUrl":null,"url":null,"abstract":"Beam forming, including focusing, power splitting and steering, has been demonstrated using a two-dimensional reconfigurable aperture to alter the transmission of propagating waves. The array consists of 5/spl times/5 unit blocks and each unit block contains 6/spl times/6 unit cells. Multiple beams, power splitting, beam steering angles of /spl plusmn/30/spl deg/, focusing to 3-dB beamwidths of 10/spl deg/, and defocusing to divergence angles of /spl plusmn/20/spl deg/ are demonstrated. Optimization of beamwidth and focal length with varying array configuration for the focusing architecture shows a focal length of 12.7/spl lambda/ and a minimum beamwidth of 10/spl deg/ at 5 GHz.","PeriodicalId":149404,"journal":{"name":"2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2000-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSYM.2000.861133","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
Beam forming, including focusing, power splitting and steering, has been demonstrated using a two-dimensional reconfigurable aperture to alter the transmission of propagating waves. The array consists of 5/spl times/5 unit blocks and each unit block contains 6/spl times/6 unit cells. Multiple beams, power splitting, beam steering angles of /spl plusmn/30/spl deg/, focusing to 3-dB beamwidths of 10/spl deg/, and defocusing to divergence angles of /spl plusmn/20/spl deg/ are demonstrated. Optimization of beamwidth and focal length with varying array configuration for the focusing architecture shows a focal length of 12.7/spl lambda/ and a minimum beamwidth of 10/spl deg/ at 5 GHz.