{"title":"线性锥形缝隙天线的辐射特性","authors":"D. Schaubert","doi":"10.1109/APS.1989.134956","DOIUrl":null,"url":null,"abstract":"The linearly tapered slot antenna (LTSA) is an endfire radiator formed by a tapered slotline that is usually supported on a thin, low- epsilon /sub r/ substrate. K.S. Yngvesson et al. (1985) have studied the radiation characteristics of LTSAs that are optimized for use in the focal plane of imaging/multiple-beam systems having f/D in the range of 1 to 2. In the present work, the author presents the results of an experimental investigation of the radiation properties of antennas with wider beamwidths. Some data on narrow-beamwidth antennas are included. Particular emphasis is placed on polarization in the intercardinal planes, where high levels of cross-polarization are observed. The study was conducted by fabricating four antennas on 30-mil Duroid ( epsilon /sub r/=2.2). In addition, two antennas were fabricated from 3-mil shim stock and supported by a styrofoam bridge to create antennas with air dielectric. It is concluded that the LTSA has many advantageous characteristics, and it is compatible with printed-circuit feed networks. However, designers should be aware of its polarization properties, which could adversely affect system performance.<<ETX>>","PeriodicalId":11330,"journal":{"name":"Digest on Antennas and Propagation Society International Symposium","volume":"30 1","pages":"1324-1327 vol.3"},"PeriodicalIF":0.0000,"publicationDate":"1989-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"Radiation characteristics of linearly tapered slot antennas\",\"authors\":\"D. Schaubert\",\"doi\":\"10.1109/APS.1989.134956\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The linearly tapered slot antenna (LTSA) is an endfire radiator formed by a tapered slotline that is usually supported on a thin, low- epsilon /sub r/ substrate. K.S. Yngvesson et al. (1985) have studied the radiation characteristics of LTSAs that are optimized for use in the focal plane of imaging/multiple-beam systems having f/D in the range of 1 to 2. In the present work, the author presents the results of an experimental investigation of the radiation properties of antennas with wider beamwidths. Some data on narrow-beamwidth antennas are included. Particular emphasis is placed on polarization in the intercardinal planes, where high levels of cross-polarization are observed. The study was conducted by fabricating four antennas on 30-mil Duroid ( epsilon /sub r/=2.2). In addition, two antennas were fabricated from 3-mil shim stock and supported by a styrofoam bridge to create antennas with air dielectric. It is concluded that the LTSA has many advantageous characteristics, and it is compatible with printed-circuit feed networks. However, designers should be aware of its polarization properties, which could adversely affect system performance.<<ETX>>\",\"PeriodicalId\":11330,\"journal\":{\"name\":\"Digest on Antennas and Propagation Society International Symposium\",\"volume\":\"30 1\",\"pages\":\"1324-1327 vol.3\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1989-06-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Digest on Antennas and Propagation Society International Symposium\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/APS.1989.134956\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Digest on Antennas and Propagation Society International Symposium","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APS.1989.134956","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Radiation characteristics of linearly tapered slot antennas
The linearly tapered slot antenna (LTSA) is an endfire radiator formed by a tapered slotline that is usually supported on a thin, low- epsilon /sub r/ substrate. K.S. Yngvesson et al. (1985) have studied the radiation characteristics of LTSAs that are optimized for use in the focal plane of imaging/multiple-beam systems having f/D in the range of 1 to 2. In the present work, the author presents the results of an experimental investigation of the radiation properties of antennas with wider beamwidths. Some data on narrow-beamwidth antennas are included. Particular emphasis is placed on polarization in the intercardinal planes, where high levels of cross-polarization are observed. The study was conducted by fabricating four antennas on 30-mil Duroid ( epsilon /sub r/=2.2). In addition, two antennas were fabricated from 3-mil shim stock and supported by a styrofoam bridge to create antennas with air dielectric. It is concluded that the LTSA has many advantageous characteristics, and it is compatible with printed-circuit feed networks. However, designers should be aware of its polarization properties, which could adversely affect system performance.<>
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