Open AccessSystem‐level SPICE model for predicting the effects of external incident EMI on a shielded communication system with an antenna
Author(s) -
Li Xuelian,
Du Zhengwei
Publication year - 2017
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2016.0410
Subject(s) - spice , electromagnetic interference , equivalent circuit , emi , shielded cable , electronic engineering , time domain , electronic circuit simulation , antenna (radio) , electromagnetic compatibility , frequency domain , engineering , transmitter , computer science , electrical engineering , electronic circuit , channel (broadcasting) , voltage , computer vision
A system‐level SPICE model is proposed to predict the effects of external incident electromagnetic interference (EMI) on a shielded communication system with an antenna in this study. First, hybrid techniques are incorporated to develop a frequency‐domain equivalent circuit model for the electromagnetic (EM) coupling of the system. The system is divided into an external subsystem and an internal subsystem. A receiving equivalent circuit model is established using the Lorentz reciprocity theorem for the EM coupling of the external subsystem. A transmission equivalent circuit model is established using the segmentation method for the signal transmission in the internal subsystem. Then, in order to handle the non‐linear or time‐varying circuit devices in the system, the macromodelling technique is employed to convert the frequency‐domain equivalent circuit model into a time‐domain system‐level SPICE model. Both numerical simulation and experimental verification are carried out to validate the proposed model. Based on the system‐level SPICE model, bit error rate is calculated to evaluate the performance of the communication system under external incident EMI in the ADS simulator.