Direct analysis of wave digital network of microstrip structure with step discontinuities
Biljana Stošić, M. Gmitrović · International Conference on System Science and Simulation in Engineering · 2008
A microstrip structure, divided into cascade connection of uniform sections, can be efficiently modelled by wave digital network [4]-[7]. Appropriate choice of a section number in digital model of microstrip structures is very important because of direct influence on the sampling frequency of the digital model, and on accuracy of desired response. Also, effects of the identified step discontinuities have to be compensated. In this paper, a choice of minimal number of sections based on given relative error, and one wave digital element for the step discontinuity are presented. Verification of the obtained results is done on one example of lowpass filter.