Title :
Study of meander line delay in circuit boards
Author :
Rubin, Barry J. ; Singh, Bhupindra
Author_Institution :
IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA
fDate :
9/1/2000 12:00:00 AM
Abstract :
A moment technique is used to determine the propagation delay in meander (serpentine) delay lines located in printed circuit boards of computer systems. The full three-dimensional effects of the meander structure including signal line thickness, right-angle bends, and skin-effect are included. A set of delay lines having different pitches are considered, and results are calculated and compared to those from two-dimensional simulations, other commercial codes, analytic formulas in the literature, and experimental measurements. Based on the consistency of the results and sensitivity analyses involving numerical gridding and frequency content, the delays calculated for meander lines situated in a homogeneous medium are accurate to better than a few tenths of a percent
Keywords :
circuit layout CAD; delay lines; method of moments; printed circuit layout; sensitivity analysis; skin effect; frequency content; homogeneous medium; meander line delay; moment technique; numerical gridding; printed circuit boards; propagation delay; right-angle bends; sensitivity analyses; serpentine delay lines; signal line thickness; skin-effect; three-dimensional effects; Circuit simulation; Clocks; Delay effects; Delay lines; Frequency; Logic gates; Printed circuits; Propagation delay; Shape; Signal analysis;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
