{"title":"磁介电材料电磁带隙结构的低轮廓宽带天线","authors":"L. Yousefi, B. Mohajer-Iravani, O. Ramahi","doi":"10.1109/IWAT.2007.370166","DOIUrl":null,"url":null,"abstract":"In this paper, a novel application for magneto-dielectric materials is introduced. Using magneto-dielectric materials, a compact wide band electromagnetic bandgap (EBG) structure is designed. The numerical results show that this EBG has an in-phase reflection bandwidth of 70% which is several times greater than a conventional EBG resonating at the same frequency while its cell size is smaller. Using this EBG as the ground plane, a low profile unidirectional spiral antenna is designed to operate over the 8 to 18 GHz. The VSWR and gain of the designed low profile antenna is shown to be comparable to the PEC backed spiral antenna (backing at lambda/4), while achieving a 72% reduction in profile.","PeriodicalId":446281,"journal":{"name":"2007 International workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications","volume":"43 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":"{\"title\":\"Low Profile Wide Band Antennas using Electromagnetic Bandgap Structures with Magneto-Dielectric Materials\",\"authors\":\"L. Yousefi, B. Mohajer-Iravani, O. Ramahi\",\"doi\":\"10.1109/IWAT.2007.370166\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, a novel application for magneto-dielectric materials is introduced. Using magneto-dielectric materials, a compact wide band electromagnetic bandgap (EBG) structure is designed. The numerical results show that this EBG has an in-phase reflection bandwidth of 70% which is several times greater than a conventional EBG resonating at the same frequency while its cell size is smaller. Using this EBG as the ground plane, a low profile unidirectional spiral antenna is designed to operate over the 8 to 18 GHz. The VSWR and gain of the designed low profile antenna is shown to be comparable to the PEC backed spiral antenna (backing at lambda/4), while achieving a 72% reduction in profile.\",\"PeriodicalId\":446281,\"journal\":{\"name\":\"2007 International workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications\",\"volume\":\"43 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-03-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2007 International workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IWAT.2007.370166\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2007 International workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IWAT.2007.370166","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Low Profile Wide Band Antennas using Electromagnetic Bandgap Structures with Magneto-Dielectric Materials
In this paper, a novel application for magneto-dielectric materials is introduced. Using magneto-dielectric materials, a compact wide band electromagnetic bandgap (EBG) structure is designed. The numerical results show that this EBG has an in-phase reflection bandwidth of 70% which is several times greater than a conventional EBG resonating at the same frequency while its cell size is smaller. Using this EBG as the ground plane, a low profile unidirectional spiral antenna is designed to operate over the 8 to 18 GHz. The VSWR and gain of the designed low profile antenna is shown to be comparable to the PEC backed spiral antenna (backing at lambda/4), while achieving a 72% reduction in profile.
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