Rb. Wu et Fl. Chao, FLAT SPIRAL DELAY-LINE DESIGN WITH MINIMUM CROSSTALK PENALTY, IEEE transactions on components, packaging, and manufacturing technology. Part B, Advanced packaging, 19(2), 1996, pp. 397-402
A novel routing scheme for the planar delay line is proposed to minimi
ze the signal distortion and delay time penalty incurred by the backwa
rd propagating crosstalk among the sections of delay line, In contrast
to the commonly employed serpentine delay line in which the crosstalk
noise accumulates synchronously to drastically deteriorate the receiv
ing waveform, the new flat spiral delay line design spreads the crosst
alk noise uniformly in time and avoids the crosstalk penalty. A simple
wave tracing model is employed to describe qualitatively the spreadin
g mechanism of the new design, Furthermore, quantitative analysis, sim
ulation, and TDT/TDR measurement are performed to validate the advanta
ge and utility of this design.