Affiliations: [a] College of Electronics and Information Engineering,
Taiyuan University of Science and Technology, Taiyuan, Shanxi, China | [b] China Mobile Taiyuan Branch of Shanxi Province,
Taiyuan, Shanxi, China | [c] Department of Microsystems Product, Southwest China
Research Institute of Electronic Equipment, Chengdu, Sichuan, China
Correspondence:
[*]
Corresponding author: Wen-Yan Tian, College of Electronics and
Information Engineering, Taiyuan University of Science and Technology, Taiyuan
030024, Shanxi, China. E-mail: tianwy503@163.com
Abstract: A hybrid S-matrix is proposed based on artificial
neural network (ANN) and Baum-Liu-Tesche (BLT) equations to analyze the
electromagnetic interference (EMI) effects on PCB with active and passive
circuit components. Transmission line equations and Finite difference time
domain (FDTD) method are employed to compute the excited fields and extract the
port parameters for passive printed circuits. ANN method is used to predict the
S-parameters for some active components. Then, the trained
ANN model is combined with other S-parameters to compose a
hybrid S-matrix for the characterization of the PCB. The
resulting hybrid S-matrix and excited fields are
subsequently exported to BLT equations to evaluate the responses. Examples are
studied and the numerical results are compared with those obtained by
experiment. The agreement is generally good that validates this method.
