{"title":"使用非均匀圆形金属贴片的宽带频率选择性表面吸收器","authors":"M. Karami, R. Sadeghzadeh, M. Sharifi","doi":"10.1109/LAPC.2015.7365995","DOIUrl":null,"url":null,"abstract":"In this paper, a new broadband Frequency Selective Surface (FSS) electromagnetic absorber (EMA) is proposed. The absorber consists of circular metallic patches with different dimensions backed by a foam spacer and metallic ground. The patches provide different resonances resulting in improvement of the absorption characteristics of the proposed EMA. The reflection coefficient of the proposed EMA with a thickness of 3.4 mm is less than -10 dB from 8 to 12 GHz frequency spectrum. For both TE and TM-polarized waves, the reflection coefficient of the presented EMA is almost independent of the incidence angle from 0° to 30°.","PeriodicalId":339610,"journal":{"name":"2015 Loughborough Antennas & Propagation Conference (LAPC)","volume":"94 1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A broadband frequency selective surface absorber using nonuniform circular metallic patches\",\"authors\":\"M. Karami, R. Sadeghzadeh, M. Sharifi\",\"doi\":\"10.1109/LAPC.2015.7365995\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, a new broadband Frequency Selective Surface (FSS) electromagnetic absorber (EMA) is proposed. The absorber consists of circular metallic patches with different dimensions backed by a foam spacer and metallic ground. The patches provide different resonances resulting in improvement of the absorption characteristics of the proposed EMA. The reflection coefficient of the proposed EMA with a thickness of 3.4 mm is less than -10 dB from 8 to 12 GHz frequency spectrum. For both TE and TM-polarized waves, the reflection coefficient of the presented EMA is almost independent of the incidence angle from 0° to 30°.\",\"PeriodicalId\":339610,\"journal\":{\"name\":\"2015 Loughborough Antennas & Propagation Conference (LAPC)\",\"volume\":\"94 1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 Loughborough Antennas & Propagation Conference (LAPC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/LAPC.2015.7365995\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 Loughborough Antennas & Propagation Conference (LAPC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/LAPC.2015.7365995","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A broadband frequency selective surface absorber using nonuniform circular metallic patches
In this paper, a new broadband Frequency Selective Surface (FSS) electromagnetic absorber (EMA) is proposed. The absorber consists of circular metallic patches with different dimensions backed by a foam spacer and metallic ground. The patches provide different resonances resulting in improvement of the absorption characteristics of the proposed EMA. The reflection coefficient of the proposed EMA with a thickness of 3.4 mm is less than -10 dB from 8 to 12 GHz frequency spectrum. For both TE and TM-polarized waves, the reflection coefficient of the presented EMA is almost independent of the incidence angle from 0° to 30°.
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