Computational Techniques for Design and Analysis of Time-Varying
Capacitor loaded Transmission Lines using FDTD and Simulink
Abstract
In this paper, MATLAB based computational approaches for the design and
analysis of time-varying capacitors using the finite-difference
time-domain (FDTD) technique and the Simulink design environment are
presented. The FDTD formulation for multiple lumped capacitors loaded in
series on a transmission line is discussed and extended to include time
variation of capacitance. The design methodology for the same is also
discussed using MATLAB’s Simulink using the RF Blockset Library. The
developed FDTD formulation and the Simulink method are then used to
design a mixer with time-varying capacitors loaded transmission line.