مشخصات پژوهش

عنوان	Extended Method of Lines to Model Cylindrical Graphene-Based Multilayer Structures
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Cylindrical coordinates , graphene , method of lines (MoL) , multilayer
چکیده	In this article, the method of lines (MoL) is extended to analyze 2-D multilayer structures loaded with graphene plates in cylindrical coordinates. Accordingly, the admittance transformation matrices through a 2-D interface are derived taking into account the tensor-form conductivity of the magnetized graphene plate. The transformations determine the admittance matrices on all the planes of the multilayer structure. Furthermore, a technique to obtain the characteristic equation and hence the propagation constant of the structure is proposed by matching the fields at the interfaces loaded with graphene. As a result, the proposed method is able to analyze a generic graphene-loaded multilayer structure in cylindrical coordinates. As a proof of concept, the MoL is exploited to analyze 2-D cylindrical graphene microstrip and stripline transmission lines. The proposed method is validated by comparing the results with COMSOL simulations exhibiting a good agreement. Tuning the chemical potential of the graphene plate has potential applications in tunable microwave attenuators and phase shifters.
پژوهشگران	سید کیهان حسینی (نفر سوم)، کیوان فرورقی (نفر دوم)، علی مهردادیان (نفر اول)