{"title":"紧凑型双波段变容可调谐不等长支路混合型","authors":"Amarjit Kumar, N. Pathak","doi":"10.1109/IMARC.2017.8449682","DOIUrl":null,"url":null,"abstract":"We report a concurrent dual-band varactor-tuned branch-line coupler (BLC). It is based on an unequal-length dual-band BLC. A total of two varactors with single dc control voltage are used for tuning the dual-frequency-band. Meandering of both varactor-connected transmission lines pointing inward to the center of hybrid makes our coupler very compact in size. It has an overall dimension of 0.4 g x 0.22 g, where g is the guided wavelength corresponding to the lower band center frequency. Simulation and measurement results along with fabricated prototype of our proposed device are provided. Lower and upper frequency band tunable-bandwidth is 193- and 160- MHz, respectively.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Compact Dual Band Varactor-Tunable Unequal-Length Branch-Line Hybrid\",\"authors\":\"Amarjit Kumar, N. Pathak\",\"doi\":\"10.1109/IMARC.2017.8449682\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We report a concurrent dual-band varactor-tuned branch-line coupler (BLC). It is based on an unequal-length dual-band BLC. A total of two varactors with single dc control voltage are used for tuning the dual-frequency-band. Meandering of both varactor-connected transmission lines pointing inward to the center of hybrid makes our coupler very compact in size. It has an overall dimension of 0.4 g x 0.22 g, where g is the guided wavelength corresponding to the lower band center frequency. Simulation and measurement results along with fabricated prototype of our proposed device are provided. Lower and upper frequency band tunable-bandwidth is 193- and 160- MHz, respectively.\",\"PeriodicalId\":259227,\"journal\":{\"name\":\"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)\",\"volume\":\"65 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2017-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IMARC.2017.8449682\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IMARC.2017.8449682","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
摘要
我们报道了一种并发双频变容调谐分支线耦合器(BLC)。它基于不等长双频BLC。双频带的调谐采用两个直流控制电压单一的变容管。弯曲的两个变容连接的传输线指向内部的混合动力中心,使我们的耦合器非常紧凑的尺寸。它的总尺寸为0.4 g x 0.22 g,其中g是与较低波段中心频率对应的导波波长。给出了该装置的仿真和测量结果,并制作了样机。下、上频段可调带宽分别为193兆赫和160兆赫。
Compact Dual Band Varactor-Tunable Unequal-Length Branch-Line Hybrid
We report a concurrent dual-band varactor-tuned branch-line coupler (BLC). It is based on an unequal-length dual-band BLC. A total of two varactors with single dc control voltage are used for tuning the dual-frequency-band. Meandering of both varactor-connected transmission lines pointing inward to the center of hybrid makes our coupler very compact in size. It has an overall dimension of 0.4 g x 0.22 g, where g is the guided wavelength corresponding to the lower band center frequency. Simulation and measurement results along with fabricated prototype of our proposed device are provided. Lower and upper frequency band tunable-bandwidth is 193- and 160- MHz, respectively.