NDLI: Tunable Terahertz Filter-Integrated Quasi-Yagi Antenna Based on Graphene

Content Provider	Springer Nature Link
Author	Wu, Yongle Qu, Meijun Jiao, Lingxiao Liu, Yuanan
Copyright Year	2016
Abstract	In this paper, a filter-integrated quasi-Yagi antenna (FIQYA) with quasi-independently tunable passband and front-to-back ratio is proposed by using graphene. The graphene at two ends of the coupled-line ring resonator mainly affects the impedance bandwidth while the front-to-back ratio of radiation patterns is attributed to the graphene-implanted open-circuited director. The bandwidth and front-to-back ratio tunability is accomplished by altering the complex conductivity of graphene controlled by chemical potential. For verification, a 2-THz FIQYA using both perfect electric conductor (PEC) and graphene with two different controllable chemical potentials (μ $_{c1}$ and μ $_{c2}$) is simulated. The simulated results show that the maximum tunable impedance bandwidth of the FIQYA is varied from 186 to 235 GHz without affecting the radiation patterns when μ $_{c1}$ changes from 0 to 0.2 eV. The maximum tunable front-to-back ratio is changed from 11.7 to 15.4 dB while μ $_{c2}$ is altering from 0 to 0.6 eV, maintaining an acceptable matching bandwidth in all cases.
Starting Page	811
Ending Page	817
Page Count	7
File Format	PDF
ISSN	15571955
Journal	Plasmonics
Volume Number	12
Issue Number	3
e-ISSN	15571963
Language	English
Publisher	Springer US
Publisher Date	2016-07-11
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Filter-integrated Quasi-Yagi antenna Tunable Bandwidth Front-to-back ratio Graphene Biotechnology Nanotechnology Biological and Medical Physics, Biophysics Biochemistry
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Biochemistry Biophysics Biotechnology

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