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 IEEE 10th Topical Meeting on Electrical Performance of Electronic Packaging (2001, Cambridge, MA), pp. 39-42, Institute of Electrical and Electronics Engineers (IEEE), Oct 2001.
The definitive version is available at http://dx.doi.org/10.1109/EPEP.2001.967606
IEEE 10th Topical Meeting on Electrical Performance of Electronic Packaging (2001: Oct. 22-31, Cambridge, MA)
Electrical and Computer Engineering
Electromagnetic Compatibility (EMC) Laboratory
Keywords and Phrases
S-Parameters; Finite Difference Time-Domain Analysis; High-Frequency Transmission Lines; Signals; Transmission Line Theory; Computational Methods; Electric Impedance; Electromagnetic Wave Propagation; Electromagnetic Wave Reflection; Finite Difference Method; Frequencies; Microstrip Lines; Permittivity; Scattering Parameters; Substrates; Time Domain Analysis; Transmission Line Theory; Differential Signal; Differential Transmission Line; Finite-Difference Time-Domain Method; Electromagnetic Field Effects
International Standard Book Number (ISBN)
Article - Conference proceedings
© 2001 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.