Radiation From A Hertz Dipole Antenna On A Single Laver And Bilayer Graphene-medium Composite Structure

Since graphene was successfully made, it has aroused global attention for its outstanding properties. Numerous graphene based nanoelectronic and nanophotonic devices emerged, showing great potential of graphene for applications. This paper analyzed radiation characteristics of an hertz dipole on a single layer and bilayer graphene-medium composite structure, using generalized spectral domain-exponential matrix technique, mainly far field patterns. And on the basis, we tried to introduce such composite structure into antenna design.The main academic contributions of this dissertation include:1. A brief introduction of the band structure of graphene and an explanation of microscopic theory of its outstanding properties. Then, we introduced two graphene conductivity models Kubo and Drude with effect of electric and magnetic bias. Next, we explained the equivalent circuit model of graphene and generalized spectral domain-exponential matrix technique, in order to pave the way for the following calculation.2. We selected generalized spectral domain-exponential matrix technique as a computing method in this paper. We added graphene boundary conditions, and analyzed radiation characteristics of an hertz dipole on a single layer graphene-bianisotropic slab between two isotropic half-spaces and on a grounded bianistropic slab. Using green’s function of the structure of a general bianistropic slab, choose the ferrite, we obtained the results of far-field patterns. Moreover we find the pattern shapes of antenna can be changed by adjusting the intensity of the electric and magnetic biasing field.3. On the basis of previous research, we try to extended the solution of a single layer graphene-bianistropic structure into a bilayer graphene-mulilayer bianictropic structure. We carefully discussed the radiation characteristics of a hertz dipole antenna on the more complicated structure.4. This paper aims to provide a new way for a particular antenna to obtain a variety of pattern shapes without modifying the hardware configuration. At the same time, providing a theoretical reference and control the radiation characteristics for the antenna design and the industrial design of nanoelectronic and nanophotonic devices through simulation.