{"title":"基于多波束大规模MIMO的64路二维波束切换巴特勒矩阵","authors":"J. Hirokawa, T. Tomura, K. Nishimori, T. Hiraguri","doi":"10.1109/PAST43306.2019.9020759","DOIUrl":null,"url":null,"abstract":"This paper presents a $64\\mathrm{x}64$-way one-body two-dimensional beam-switching Butler matrix for multi-beam massive MIMO transmission that eliminates channel state information estimation with constant modules algorithm in the digital part. The one-body two-dimensional switching matrix is realized by introducing the waveguide 2-plane couplers as hybrid and cross junctions. The 64 beams can cover 39.5% hemisphere by 0.65-wavelength aperture spacing in simulation. The measured beam coverage is almost the same to the simulated one. The effectiveness of the multi-beam massive MIMO using measured 8 by 8 beam patterns with the planar array is also clarified.","PeriodicalId":410526,"journal":{"name":"2019 IEEE International Symposium on Phased Array System & Technology (PAST)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A $64\\\\mathrm{x}64$-way Two-dimensional Beam-switching Butler Matrix for Multi-beam Massive MIMO\",\"authors\":\"J. Hirokawa, T. Tomura, K. Nishimori, T. Hiraguri\",\"doi\":\"10.1109/PAST43306.2019.9020759\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a $64\\\\mathrm{x}64$-way one-body two-dimensional beam-switching Butler matrix for multi-beam massive MIMO transmission that eliminates channel state information estimation with constant modules algorithm in the digital part. The one-body two-dimensional switching matrix is realized by introducing the waveguide 2-plane couplers as hybrid and cross junctions. The 64 beams can cover 39.5% hemisphere by 0.65-wavelength aperture spacing in simulation. The measured beam coverage is almost the same to the simulated one. The effectiveness of the multi-beam massive MIMO using measured 8 by 8 beam patterns with the planar array is also clarified.\",\"PeriodicalId\":410526,\"journal\":{\"name\":\"2019 IEEE International Symposium on Phased Array System & Technology (PAST)\",\"volume\":\"33 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2019 IEEE International Symposium on Phased Array System & Technology (PAST)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/PAST43306.2019.9020759\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 IEEE International Symposium on Phased Array System & Technology (PAST)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PAST43306.2019.9020759","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A $64\mathrm{x}64$-way Two-dimensional Beam-switching Butler Matrix for Multi-beam Massive MIMO
This paper presents a $64\mathrm{x}64$-way one-body two-dimensional beam-switching Butler matrix for multi-beam massive MIMO transmission that eliminates channel state information estimation with constant modules algorithm in the digital part. The one-body two-dimensional switching matrix is realized by introducing the waveguide 2-plane couplers as hybrid and cross junctions. The 64 beams can cover 39.5% hemisphere by 0.65-wavelength aperture spacing in simulation. The measured beam coverage is almost the same to the simulated one. The effectiveness of the multi-beam massive MIMO using measured 8 by 8 beam patterns with the planar array is also clarified.
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