Nonlinear analysis of a PIN diode Limiter using time domain volume surface integral equation

In this paper, the time domain volume surface integral equation method is used to analyze PIN diode Limiter under high voltage with a field-circuit coupling algorithm. Besides, the mathematical equations of lumped charge model are also combined here. The electromagnetic field-circuit coupled system matrix of microwave nonlinear element loaded circuit problem is established. With Newton iteration method, nonlinear equation is solved in a rigorously synchronous and seamless way. Finally, a modified solution process of time domain nonlinear coupled system matrix is introduced, the results of simulation shows the process of solution can be accelerated obviously.