{"title":"Bandwidth Enhancement of a Compact Slot Antenna with Frequency Scale Up/down Capability","authors":"Sachin Agrawal, M. Parihar","doi":"10.1080/02564602.2022.2144494","DOIUrl":null,"url":null,"abstract":"In this paper, a printed wideband slot antenna is proposed and investigated. The antenna geometry consists of a 45° rotated square slot and a circular parasitic patch situated at its center. In addition, the slot consists of four rectangular notches at every corner. It brings close the resonances of both slot and circular patches and enhances bandwidth. The antenna achieved the measured impedance bandwidth of 111.7% from 2.24 to 7.91 GHz, with almost stable pattern. Furthermore, a comprehensive parametric study has been carried out to prepare a set of guidelines to scale up or down the antenna for a specified impedance bandwidth (111.7%) between different frequency ranges. The frequency scaling feature has been verified by simulating a set of antennas for different frequency bands. The result demonstrates that all antennas under test yield almost equal impedance bandwidth.","PeriodicalId":13252,"journal":{"name":"IETE Technical Review","volume":"40 1","pages":"632 - 640"},"PeriodicalIF":2.5000,"publicationDate":"2022-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IETE Technical Review","FirstCategoryId":"94","ListUrlMain":"https://doi.org/10.1080/02564602.2022.2144494","RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
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Abstract
In this paper, a printed wideband slot antenna is proposed and investigated. The antenna geometry consists of a 45° rotated square slot and a circular parasitic patch situated at its center. In addition, the slot consists of four rectangular notches at every corner. It brings close the resonances of both slot and circular patches and enhances bandwidth. The antenna achieved the measured impedance bandwidth of 111.7% from 2.24 to 7.91 GHz, with almost stable pattern. Furthermore, a comprehensive parametric study has been carried out to prepare a set of guidelines to scale up or down the antenna for a specified impedance bandwidth (111.7%) between different frequency ranges. The frequency scaling feature has been verified by simulating a set of antennas for different frequency bands. The result demonstrates that all antennas under test yield almost equal impedance bandwidth.
期刊介绍：
IETE Technical Review is a world leading journal which publishes state-of-the-art review papers and in-depth tutorial papers on current and futuristic technologies in the area of electronics and telecommunications engineering. We also publish original research papers which demonstrate significant advances.
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