TY - GEN
T1 - Time-domain finite element modeling of nonlinear conductivity using Newton's method
AU - Yan, Su
AU - Jin, Jianming
PY - 2015/10/22
Y1 - 2015/10/22
N2 - Dielectric breakdown during high power operation is hazardous to electric and electronic devices and systems. During the breakdown process, the bound charges break free and are pushed to move under the force of high intensity fields. As a result, the dielectric which was a good insulator becomes a conductor. Such a process can be described as the change of conductivity of the dielectric, which in this case, is a nonlinear function of the electric field. In this paper, the nonlinear conductivity is incorporated into Maxwell's equations, and the resulting nonlinear equation is solved using the time-domain finite element method together with Newton's method. A numerical example is presented to demonstrate the capability of the proposed algorithm and the nonlinear effect caused by the nonlinear conductivity.
AB - Dielectric breakdown during high power operation is hazardous to electric and electronic devices and systems. During the breakdown process, the bound charges break free and are pushed to move under the force of high intensity fields. As a result, the dielectric which was a good insulator becomes a conductor. Such a process can be described as the change of conductivity of the dielectric, which in this case, is a nonlinear function of the electric field. In this paper, the nonlinear conductivity is incorporated into Maxwell's equations, and the resulting nonlinear equation is solved using the time-domain finite element method together with Newton's method. A numerical example is presented to demonstrate the capability of the proposed algorithm and the nonlinear effect caused by the nonlinear conductivity.
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U2 - 10.1109/APS.2015.7305300
DO - 10.1109/APS.2015.7305300
M3 - Conference contribution
AN - SCOPUS:84953751969
T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
SP - 1822
EP - 1823
BT - 2015 IEEE Antennas and Propagation Society International Symposium, APS 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE Antennas and Propagation Society International Symposium, APS 2015
Y2 - 19 July 2015 through 24 July 2015
ER -