{"title":"一种平面超材料共向耦合器,反向耦合功率","authors":"R. Islam, G. Eleftheriades","doi":"10.1109/MWSYM.2003.1210943","DOIUrl":null,"url":null,"abstract":"A metamaterial coupler made of a regular microstrip line and a negative-refractive-index (NRI) line is examined. Peculiar coupling effects are observed in which co-directional traveling waves result in contra-directional Poynting vectors on the lines thus leading to power being coupled backwards. This coupler demonstrates better performance in terms of coupled power and port isolation, but at a slightly reduced bandwidth, when compared to a commensurate regular microstrip coupled-line coupler.","PeriodicalId":252251,"journal":{"name":"IEEE MTT-S International Microwave Symposium Digest, 2003","volume":"59 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2003-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"61","resultStr":"{\"title\":\"A planar metamaterial co-directional coupler that couples power backwards\",\"authors\":\"R. Islam, G. Eleftheriades\",\"doi\":\"10.1109/MWSYM.2003.1210943\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A metamaterial coupler made of a regular microstrip line and a negative-refractive-index (NRI) line is examined. Peculiar coupling effects are observed in which co-directional traveling waves result in contra-directional Poynting vectors on the lines thus leading to power being coupled backwards. This coupler demonstrates better performance in terms of coupled power and port isolation, but at a slightly reduced bandwidth, when compared to a commensurate regular microstrip coupled-line coupler.\",\"PeriodicalId\":252251,\"journal\":{\"name\":\"IEEE MTT-S International Microwave Symposium Digest, 2003\",\"volume\":\"59 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2003-06-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"61\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE MTT-S International Microwave Symposium Digest, 2003\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MWSYM.2003.1210943\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE MTT-S International Microwave Symposium Digest, 2003","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSYM.2003.1210943","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A planar metamaterial co-directional coupler that couples power backwards
A metamaterial coupler made of a regular microstrip line and a negative-refractive-index (NRI) line is examined. Peculiar coupling effects are observed in which co-directional traveling waves result in contra-directional Poynting vectors on the lines thus leading to power being coupled backwards. This coupler demonstrates better performance in terms of coupled power and port isolation, but at a slightly reduced bandwidth, when compared to a commensurate regular microstrip coupled-line coupler.