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Graphene Distributed Amplifiers: Generating Desirable Gain for Graphene Field-Effect Transistors
Lyu, Hongming; Lu, Qi; Huang, Yilin; Ma, Teng; Zhang, Jinyu; Wu, Xiaoming; Yu, Zhiping; Ren, Wencai; Cheng, Hui-Ming; Wu, Huaqiang; Qian, He; holyu@ucsd.edu; wuhq@tsinghua.edu.cn
2015
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume5Pages:-
AbstractEver since its discovery, graphene bears great expectations in high frequency electronics due to its irreplaceably high carrier mobility. However, it has long been blamed for the weakness in generating gains, which seriously limits its pace of development. Distributed amplification, on the other hand, has successfully been used in conventional semiconductors to increase the amplifiers' gain-bandwidth product. In this paper, distributed amplification is first applied to graphene. Transmission lines phase-synchronize paralleled graphene field-effect transistors (GFETs), combining the gain of each stage in an additive manner. Simulations were based on fabricated GFETs whose f(T) ranged from 8.5 GHz to 10.5 GHz and f(max) from 12 GHz to 14 GHz. A simulated four-stage graphene distributed amplifier achieved up to 4 dB gain and 3.5 GHz bandwidth, which could be realized with future IC processes. A PCB level graphene distributed amplifier was fabricated as a proof of circuit concept.
description.department[lyu, hongming ; lu, qi ; huang, yilin ; zhang, jinyu ; wu, xiaoming ; yu, zhiping ; wu, huaqiang ; qian, he] tsinghua univ, inst microelect, beijing 100084, peoples r china ; [wu, huaqiang ; qian, he] tnlist, beijing, peoples r china ; [lyu, hongming] univ calif san diego, dept elect & comp engn, la jolla, ca 92093 usa ; [ma, teng ; ren, wencai ; cheng, hui-ming] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china
Funding OrganizationNational Science and Technology Major Project [2011ZX02707]; National Basic Research Program [2011CBA00600, 2013CBA01604]; National Natural Science Foundation [61474072]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74866
Collection中国科学院金属研究所
Corresponding Authorholyu@ucsd.edu; wuhq@tsinghua.edu.cn
Recommended Citation
GB/T 7714
Lyu, Hongming,Lu, Qi,Huang, Yilin,et al. Graphene Distributed Amplifiers: Generating Desirable Gain for Graphene Field-Effect Transistors[J]. SCIENTIFIC REPORTS,2015,5:-.
APA Lyu, Hongming.,Lu, Qi.,Huang, Yilin.,Ma, Teng.,Zhang, Jinyu.,...&wuhq@tsinghua.edu.cn.(2015).Graphene Distributed Amplifiers: Generating Desirable Gain for Graphene Field-Effect Transistors.SCIENTIFIC REPORTS,5,-.
MLA Lyu, Hongming,et al."Graphene Distributed Amplifiers: Generating Desirable Gain for Graphene Field-Effect Transistors".SCIENTIFIC REPORTS 5(2015):-.
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