Science Daily January 31, 2019
Researchers in Japan developed algorithm for computer simulation of electric circuits in which transmission lines are connected with lumped element models. They introduced the incidence matrix found in circuit theory and time domain impedance to connect partial differential equations and ordinary differential equations which are used to solve transmission line problems. Based on the results of calculations using this algorithm, the researchers demonstrated that EM noise could be reduced by using the symmetric 3-line configuration of the circuit. Their calculation method is for one-dimensional multi-conductor transmission lines, but they have already developed a calculation algorithm in two- and three-dimensional multi-conductor transmission lines. This calculation method can also be developed into a calculation method for the retarding effects of EM noise and signals…read more. Open Access TECHNICAL ARTICLEÂ
A pulse signal induces a series of pulses on the transmission line (left). Improvement of the transmission line arrangement and lumped circuit connection provides “noise-free” signal transmission (right). Credit: Osaka University