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Delay lines are widely employed in high-speed circuit for delay time synchronization and timing skew minimization, popular schemes are serpentine and spiral routing. In order to reduce the manufacture cost and routing area, spacing between adjacent unit lines should be smaller, but it increases in electromagnetic coupling and crosstalk from adjacent lines. In conventional serpentine and spiral delay...
In this paper, we proposed a wideband common-mode suppression filter for multi differential signal pairs. The method of the proposed design is utilized by using Defected Ground Structure (DGS) of two quarter-wavelength resonators with the mutual coupling effect to achieve the wideband common-mode suppression. For observing one pair differential signal lines in the frequency domain analysis, the differential-mode...
The ground bounce noise (GBN) in high-integrative and high-complexity circuit designs is discussed in this paper. GBN doesn't only transmit its own power and ground plane but also couple to power and ground plane nearby. Therefore, power integrity (PI) will be affected by GBN. I use the segmentation method to cut off the cavity model of PCB. Here, I embed partial electromagnetic bandgap (EBG) structure...
In this paper, we propose the use of the modified nodal analysis (MNA) method to rederive cavity-mode equation of PCB power-bus structures with discrete capacitors. In some frequency, it shows impedance inaccuracies in the traditional double summation to calculate the transfer impedances for the studied PCB power-bus structures with discrete capacitors. Using our proposed method, we not only achieve...
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