{"title":"高阻抗开路存根超紧凑平面微带支路耦合器的实现","authors":"Ching‐Wen Tang, Mingguang Chen, Janne-Wha Wu","doi":"10.1109/MWSYM.2007.380223","DOIUrl":null,"url":null,"abstract":"The ultra-compact microstrip branch-line couplers are proposed in this paper. Using the provided criteria to shorten the lengths of four quarter-wavelength transmission lines, the sizes of branch-line couplers can be greatly miniaturized. In this study, the reduction rate of the proposed couplers' sizes are over 88.9% and 76.8% using approaches with the pi-model and the T-model, respectively. Moreover, the measured frequency and phase responses show good agreement with the electromagnetic simulated results.","PeriodicalId":213749,"journal":{"name":"2007 IEEE/MTT-S International Microwave Symposium","volume":"32 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":"{\"title\":\"Realization of Ultra-Compact Planar Microstrip Branch-Line Couplers With High-Impedance Open Stubs\",\"authors\":\"Ching‐Wen Tang, Mingguang Chen, Janne-Wha Wu\",\"doi\":\"10.1109/MWSYM.2007.380223\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The ultra-compact microstrip branch-line couplers are proposed in this paper. Using the provided criteria to shorten the lengths of four quarter-wavelength transmission lines, the sizes of branch-line couplers can be greatly miniaturized. In this study, the reduction rate of the proposed couplers' sizes are over 88.9% and 76.8% using approaches with the pi-model and the T-model, respectively. Moreover, the measured frequency and phase responses show good agreement with the electromagnetic simulated results.\",\"PeriodicalId\":213749,\"journal\":{\"name\":\"2007 IEEE/MTT-S International Microwave Symposium\",\"volume\":\"32 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-06-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"11\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2007 IEEE/MTT-S International Microwave Symposium\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MWSYM.2007.380223\",\"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 IEEE/MTT-S International Microwave Symposium","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSYM.2007.380223","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Realization of Ultra-Compact Planar Microstrip Branch-Line Couplers With High-Impedance Open Stubs
The ultra-compact microstrip branch-line couplers are proposed in this paper. Using the provided criteria to shorten the lengths of four quarter-wavelength transmission lines, the sizes of branch-line couplers can be greatly miniaturized. In this study, the reduction rate of the proposed couplers' sizes are over 88.9% and 76.8% using approaches with the pi-model and the T-model, respectively. Moreover, the measured frequency and phase responses show good agreement with the electromagnetic simulated results.
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