Vias in differential transmission lines have been modeled using the finite-difference time-domain (FDTD) method. The velocity that the differential signal propagated through the vias was estimated. Differential S-parameters were calculated up to 50 GHz. Below 10 GHz, the differential signal can propagate through vias without much reflection and distortion. However, as frequency increases, the reflection from the vias and the loss of differential power become significant.
C. Wang et al., "The Effects of Via Transitions on Differential Signals," Proceedings of the Electrical Performance of Electronic Packaging, 2001, Institute of Electrical and Electronics Engineers (IEEE), Oct 2001.
The definitive version is available at http://dx.doi.org/10.1109/EPEP.2001.967606
Electrical Performance of Electronic Packaging, 2001
Electrical and Computer Engineering
Keywords and Phrases
S-Parameters; Finite Difference Time-Domain Analysis; High-Frequency Transmission Lines; Signals; Transmission Line Theory
Article - Conference proceedings
© 2001 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.