Improvement on Phase-Delay Time Characteristics of Broadside-Coupled Strip Meander Lines with Shielding Conductors Connected to Ground through Vias

Abstract

In high-speed digital processing circuits of these days, in order to match the timing between two or more signals, many meander lines have come to be used. Increasing the length of the hairpin conductor causes to increase the coupling between the parallel conductors of the hairpin, and it leads to deteriorate the frequency characteristics of phase-delay time. In this paper, a broadside-coupled meander strip line with shielding conductors connected to the ground through the vias is proposed, and the improvement on the phase-delay time characteristics is investigated by means of numerical analysis.