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Broadband circuit models for electric machines are effective means to understand, predict, and control the phenomenon of conducted Electromagnetic Interference (EMI) from immunity/susceptibility perspective. These models should cover the capacitive and inductive coupling behavior of the component along the frequency range of interest. Circuit models used under generic SPICE simulation softwares are...
By advance of miniaturization of electronic devices, a ground plane of a printed circuit board is tend to be small and complicated and the ground plane may have some defects, such as connectors or clearance halls of vias. In this paper, we analyzed the coupling between a microstrip line and a slot in a ground on a PCB using the MTL method to examine an effect of the signal integrity for the slot in...
At a differential transmission line bend, a differential mode propagated in a differential transmission line is converted to a common mode due to asymmetry of the transmission line. The common mode conversion leads to problems with signal integrity. We propose a method to improve electric symmetry of the transmission line bend and thus reduce the common mode conversion. The self-capacitance and inductance...
In this paper, a novel power plane is proposed using the novel S-shaped bridge electromagnetic bandgap (EBG) structure to isolate the ground bounce noise (GBN) and ultrawideband suppression of simultaneous switching noise (SSN) in high-speed circuit. The S-shaped bridge effectively increases the inductance between two adjacent unit cells. And the ripples are held down by open stub to get higher attenuation...
Planar spiral inductors made of a single-wall carbon nanotube (SWCNT) bundle are investigated in order to achieve higher values of the quality factor for high frequency automotive applications. The inductor is modeled as an equivalent circuit whose frequency dependent parameters are obtained by an analytical/numerical procedure. A sensitivity analysis to some design parameters is carried out for frequencies...
The equivalent-circuit expression of bend discontinuity in differential transmission lines, which is derived from the view of the mode-decomposition technique, is proposed in this paper. We investigated the relationship between the amount of mode conversion in the bend region and two components in the modal equivalent circuit: the mode-conversion sources and the modal reactances (modal inductances...
This paper proposes an inductance extraction method for a compact meander line structure. The Green House algorithm is introduced to solve the complicated inductive coupling effects and make it possible to calculate a meander line with any shape. Three different cases with a meander line or a straight line as a return path are discussed. Self and mutual inductances are demonstrated based on partial...
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