{"title":"射频自适应阵列天线在MIMO接收机中的集成","authors":"Y. Nakaya, T. Toda, S. Hara, J. Takada, Y. Oishi","doi":"10.1109/WCT.2003.1321530","DOIUrl":null,"url":null,"abstract":"We propose the incorporation of an RF-adaptive array antenna (RF-AAA) into each receive branch on multiple-input multiple output (MIMO) systems. The RF-AAA consists of multiple antenna elements where a variable-gained low-noise amplifier (VG-LNA) and a 360/spl deg/- continuously adjustable phase shifter are inserted in each antenna element and an adder for the array output is connected into the RF front-end of each receive branch. The phase shifters are adaptively controlled to increase the total channel capacity of MIMO systems. Computer simulations showed that the capacity of a 2-element-receive-RF-AAA incorporated 2 /spl times/ 2 MIMO system is higher than that of a conventional 3 /spl times/ 3 MIMO system (without RF-AAA) under average transmit power constraints.","PeriodicalId":6305,"journal":{"name":"2003 IEEE Topical Conference on Wireless Communication Technology","volume":"35 1","pages":"297-298"},"PeriodicalIF":0.0000,"publicationDate":"2003-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"Incorporation of RF-adaptive array antenna into MIMO receivers\",\"authors\":\"Y. Nakaya, T. Toda, S. Hara, J. Takada, Y. Oishi\",\"doi\":\"10.1109/WCT.2003.1321530\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We propose the incorporation of an RF-adaptive array antenna (RF-AAA) into each receive branch on multiple-input multiple output (MIMO) systems. The RF-AAA consists of multiple antenna elements where a variable-gained low-noise amplifier (VG-LNA) and a 360/spl deg/- continuously adjustable phase shifter are inserted in each antenna element and an adder for the array output is connected into the RF front-end of each receive branch. The phase shifters are adaptively controlled to increase the total channel capacity of MIMO systems. Computer simulations showed that the capacity of a 2-element-receive-RF-AAA incorporated 2 /spl times/ 2 MIMO system is higher than that of a conventional 3 /spl times/ 3 MIMO system (without RF-AAA) under average transmit power constraints.\",\"PeriodicalId\":6305,\"journal\":{\"name\":\"2003 IEEE Topical Conference on Wireless Communication Technology\",\"volume\":\"35 1\",\"pages\":\"297-298\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2003-10-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2003 IEEE Topical Conference on Wireless Communication Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/WCT.2003.1321530\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2003 IEEE Topical Conference on Wireless Communication Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/WCT.2003.1321530","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Incorporation of RF-adaptive array antenna into MIMO receivers
We propose the incorporation of an RF-adaptive array antenna (RF-AAA) into each receive branch on multiple-input multiple output (MIMO) systems. The RF-AAA consists of multiple antenna elements where a variable-gained low-noise amplifier (VG-LNA) and a 360/spl deg/- continuously adjustable phase shifter are inserted in each antenna element and an adder for the array output is connected into the RF front-end of each receive branch. The phase shifters are adaptively controlled to increase the total channel capacity of MIMO systems. Computer simulations showed that the capacity of a 2-element-receive-RF-AAA incorporated 2 /spl times/ 2 MIMO system is higher than that of a conventional 3 /spl times/ 3 MIMO system (without RF-AAA) under average transmit power constraints.
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