{"title":"认知无线电可重构天线的设计与仿真","authors":"B. Manimegalai, A. Bhuvaneshwari, S. Supraja","doi":"10.1145/2185216.2185338","DOIUrl":null,"url":null,"abstract":"Cognitive Radio (CR) is a new paradigm which aims to make more efficient use of the frequency spectrum whilst guarding against interference and generally providing a better quality of service for the user. In order to work alongside existing users the CR must monitor the available frequency spectrum, and reconfigure to transmit on a different frequency when necessary. There are good technical arguments for using an ultra-wideband (UWB) antenna to perform the sensing function, whilst communicating via a narrowband antenna. This paper presents two different antennas which have been developed to address the specific demands of portable CR handsets. Each antenna combines UWB and narrowband functionality within a small space.","PeriodicalId":180836,"journal":{"name":"International Conference on Wireless Technologies for Humanitarian Relief","volume":"6 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Design and simulation of reconfigurable antenna for cognitive radio\",\"authors\":\"B. Manimegalai, A. Bhuvaneshwari, S. Supraja\",\"doi\":\"10.1145/2185216.2185338\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Cognitive Radio (CR) is a new paradigm which aims to make more efficient use of the frequency spectrum whilst guarding against interference and generally providing a better quality of service for the user. In order to work alongside existing users the CR must monitor the available frequency spectrum, and reconfigure to transmit on a different frequency when necessary. There are good technical arguments for using an ultra-wideband (UWB) antenna to perform the sensing function, whilst communicating via a narrowband antenna. This paper presents two different antennas which have been developed to address the specific demands of portable CR handsets. Each antenna combines UWB and narrowband functionality within a small space.\",\"PeriodicalId\":180836,\"journal\":{\"name\":\"International Conference on Wireless Technologies for Humanitarian Relief\",\"volume\":\"6 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-12-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Conference on Wireless Technologies for Humanitarian Relief\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1145/2185216.2185338\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Conference on Wireless Technologies for Humanitarian Relief","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/2185216.2185338","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Design and simulation of reconfigurable antenna for cognitive radio
Cognitive Radio (CR) is a new paradigm which aims to make more efficient use of the frequency spectrum whilst guarding against interference and generally providing a better quality of service for the user. In order to work alongside existing users the CR must monitor the available frequency spectrum, and reconfigure to transmit on a different frequency when necessary. There are good technical arguments for using an ultra-wideband (UWB) antenna to perform the sensing function, whilst communicating via a narrowband antenna. This paper presents two different antennas which have been developed to address the specific demands of portable CR handsets. Each antenna combines UWB and narrowband functionality within a small space.
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