Title :
The effects of via transitions on differential signals
Author :
Wang, Chen ; Fan, Jun ; Knighten, James L. ; Smith, Norman W. ; Alexander, Ray ; Drewniak, James L.
Author_Institution :
Electromagn. Compatibility Lab., Missouri Univ., Rolla, MO, USA
Abstract :
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
Keywords :
S-parameters; finite difference time-domain analysis; high-frequency transmission lines; signals; transmission line theory; 10 to 50 GHz; FDTD model; S-parameters; differential signal; power loss; propagation velocity; transmission line; via transition; Capacitance; Finite difference methods; Frequency; Geometry; Impedance; Microstrip; Power transmission lines; Reflection; Time domain analysis; Voltage;
Conference_Titel :
Electrical Performance of Electronic Packaging, 2001
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-7024-4
DOI :
10.1109/EPEP.2001.967606
