Modeling of Microwave Waveguide Systems of Complex Structure in Nonlinear Media

The second chapter deals with the modeling of complex structural microwave systems in a nonlinear environment. For the first time for a nonlinear medium, a mathematical expression was obtained between the relative dielectric constant and the electric field intensity, and based on this, effective algorithms were developed based on mathematical models of microwave rectangular and circular waveguides and finite differences and finite element numerical methods. As a result, taking into account the nonlinearity of the environment, the electromagnetic field intensities of E-type and H-type waves, H10 mode, microwave rectangular waveguide operating in the frequency range 4.9–7.05 GHz and microwave circular waveguide operating at 9 GHz, H11 mode were determined. Based on the numerical results obtained, the E-type and H-type waveguide, H10 mode, microwave rectangular waveguide operating in the frequency range of 4.9–7.05 GHz and microwave circular waveguide operating in H11 mode at 9 GHz are constructed.