{"title":"用于太赫兹光电混合天线指向性增强的频率选择表面","authors":"T. Nguyen, Haewook Han, I. Park","doi":"10.1109/IWAT.2013.6518308","DOIUrl":null,"url":null,"abstract":"An antenna design to increase the directivity of a terahertz (THz) photomixer used as a THz source is presented. The antenna is consisted of a full-wavelength dipole on a GaAs membrane substrate and covered by a frequency-selective surface (FSS). The perfect mirror of ground plane and the partially reflective mirror of FSS form a resonator which produces good transmission characteristics and thus significantly improving the antenna directivity. The cavity in the GaAs membrane substrate has been found to be an important parameter to achieve expected high directivity characteristic when having sufficient large size. We show the antenna geometry, optimization process and the final simulated results of the proposed antenna.","PeriodicalId":247542,"journal":{"name":"2013 International Workshop on Antenna Technology (iWAT)","volume":"35 11 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Frequency selective surface for directivity enhancement of a terahertz photomixer antenna\",\"authors\":\"T. Nguyen, Haewook Han, I. Park\",\"doi\":\"10.1109/IWAT.2013.6518308\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An antenna design to increase the directivity of a terahertz (THz) photomixer used as a THz source is presented. The antenna is consisted of a full-wavelength dipole on a GaAs membrane substrate and covered by a frequency-selective surface (FSS). The perfect mirror of ground plane and the partially reflective mirror of FSS form a resonator which produces good transmission characteristics and thus significantly improving the antenna directivity. The cavity in the GaAs membrane substrate has been found to be an important parameter to achieve expected high directivity characteristic when having sufficient large size. We show the antenna geometry, optimization process and the final simulated results of the proposed antenna.\",\"PeriodicalId\":247542,\"journal\":{\"name\":\"2013 International Workshop on Antenna Technology (iWAT)\",\"volume\":\"35 11 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2013-03-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2013 International Workshop on Antenna Technology (iWAT)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IWAT.2013.6518308\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 International Workshop on Antenna Technology (iWAT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IWAT.2013.6518308","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Frequency selective surface for directivity enhancement of a terahertz photomixer antenna
An antenna design to increase the directivity of a terahertz (THz) photomixer used as a THz source is presented. The antenna is consisted of a full-wavelength dipole on a GaAs membrane substrate and covered by a frequency-selective surface (FSS). The perfect mirror of ground plane and the partially reflective mirror of FSS form a resonator which produces good transmission characteristics and thus significantly improving the antenna directivity. The cavity in the GaAs membrane substrate has been found to be an important parameter to achieve expected high directivity characteristic when having sufficient large size. We show the antenna geometry, optimization process and the final simulated results of the proposed antenna.
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