Abstract:

Using microstrip lines as application background, and by employing inverse Laplace transform, multiplications appearing in BLT equation in frequency domain are changed into temporal convolution, and together with series operations, the BLT equation in frequency domain is expanded to time domain. By making use of this BLT equation in time domain, the terminal transient response voltage of an uniform lossy microstrip line is calculated. The numerical simulation results show that the computed results derived from the BLT equation in time domain have a good agreement with those ones in frequency domain, consequently, the validity of the expansion is proved. The numerical simulation results also supply references to the study of lump source excitation effects on microstrip lines.