{"title":"基于耦合TL的GSM频率滤波支路耦合器的紧凑设计","authors":"D. Choudhary, R. Chaudhary","doi":"10.1109/imarc49196.2021.9714566","DOIUrl":null,"url":null,"abstract":"This paper presents the design of compact filtering branch line coupler (BLC) with coupled transmission line (TL) for the Global System of Mobile Communications application. The presented BLC provides equal power split among output ports ± 1.0 dB imbalance of amplitude and phase variation from $145^{0}$ to $-125^{0}$ at an operating frequency of 0.83 GHz. It occupies $0.07 \\lambda_{0} \\times 0.06 \\lambda_{0}(26.0 \\mathrm{~mm} \\times 22.5 \\mathrm{~mm})$ at 0.83 GHz, provides 92 % compactness over the conventional design of branch line coupler at the identical operating frequency. It gives 10 dB fractional bandwidth of 38.5 %(0.67-0.99 GHz) with reflection coefficient 37.5 dB and isolation of 43.0 dB at operating frequency.","PeriodicalId":226787,"journal":{"name":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"Compact Design of Filtering Branch Line Coupler for GSM Frequencies Using Coupled TL\",\"authors\":\"D. Choudhary, R. Chaudhary\",\"doi\":\"10.1109/imarc49196.2021.9714566\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents the design of compact filtering branch line coupler (BLC) with coupled transmission line (TL) for the Global System of Mobile Communications application. The presented BLC provides equal power split among output ports ± 1.0 dB imbalance of amplitude and phase variation from $145^{0}$ to $-125^{0}$ at an operating frequency of 0.83 GHz. It occupies $0.07 \\\\lambda_{0} \\\\times 0.06 \\\\lambda_{0}(26.0 \\\\mathrm{~mm} \\\\times 22.5 \\\\mathrm{~mm})$ at 0.83 GHz, provides 92 % compactness over the conventional design of branch line coupler at the identical operating frequency. It gives 10 dB fractional bandwidth of 38.5 %(0.67-0.99 GHz) with reflection coefficient 37.5 dB and isolation of 43.0 dB at operating frequency.\",\"PeriodicalId\":226787,\"journal\":{\"name\":\"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-12-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/imarc49196.2021.9714566\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/imarc49196.2021.9714566","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Compact Design of Filtering Branch Line Coupler for GSM Frequencies Using Coupled TL
This paper presents the design of compact filtering branch line coupler (BLC) with coupled transmission line (TL) for the Global System of Mobile Communications application. The presented BLC provides equal power split among output ports ± 1.0 dB imbalance of amplitude and phase variation from $145^{0}$ to $-125^{0}$ at an operating frequency of 0.83 GHz. It occupies $0.07 \lambda_{0} \times 0.06 \lambda_{0}(26.0 \mathrm{~mm} \times 22.5 \mathrm{~mm})$ at 0.83 GHz, provides 92 % compactness over the conventional design of branch line coupler at the identical operating frequency. It gives 10 dB fractional bandwidth of 38.5 %(0.67-0.99 GHz) with reflection coefficient 37.5 dB and isolation of 43.0 dB at operating frequency.