Singular Integral Equations in Scattering of Planar Dielectric Waveguide Eigenwaves by the System of Graphene Strips at THz

We consider the scattering of H-polarized eigenwaves a planar dielectric waveguide by coplanar system graphene strips in THz range. The are placed along centreline waveguide. Our treatment is based on singular integral equations with Nystrom-type discretization algorithm. Dependences characteristics, near and far fields, studied. Frequency scanning radiation patterns presented. Maximum radiated power observed plasmon resonances. resonant frequency main lobe level can be controlled variation chemical potential. Applied optimization procedure allows to obtain pattern side-lobe less than − 20 dB. presented results used designing leaky-wave antennas.