S. Sushanth Kumar, R. Jaiswal, Kahani Kumari, K. V. Srivastava
{"title":"Four Port Frequency Reconfigurable Antenna for Cognitive Radio Applications","authors":"S. Sushanth Kumar, R. Jaiswal, Kahani Kumari, K. V. Srivastava","doi":"10.1109/imarc49196.2021.9714663","DOIUrl":null,"url":null,"abstract":"In this paper, three reconfigurable narrow-band communicating antennas are integrated with ultra wide-band sensing antenna with good isolation and a wide tuning range is presented for cognitive radio (CR) applications. A patch antenna and two circular slot antennas are used as a narrow-band communicating antenna, and by using varactor diodes, frequency reconfigurability is achieved. A narrow-band patch antenna and two circular slot antennas are used to tune the frequency range 3.1 GHz - 8.2 GHz. The proposed antenna is fabricated, and antenna parameters are measured. The measured parameters are well-matched with simulated results and the measured isolation between the ports is better than 20 dB.","PeriodicalId":226787,"journal":{"name":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/imarc49196.2021.9714663","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
In this paper, three reconfigurable narrow-band communicating antennas are integrated with ultra wide-band sensing antenna with good isolation and a wide tuning range is presented for cognitive radio (CR) applications. A patch antenna and two circular slot antennas are used as a narrow-band communicating antenna, and by using varactor diodes, frequency reconfigurability is achieved. A narrow-band patch antenna and two circular slot antennas are used to tune the frequency range 3.1 GHz - 8.2 GHz. The proposed antenna is fabricated, and antenna parameters are measured. The measured parameters are well-matched with simulated results and the measured isolation between the ports is better than 20 dB.
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