The Facts about the Input Impedance of Power and Ground Planes

October 19, 2018 Cadence PCB Solutions

Power and ground planes in a printed circuit board may connect to the power supply at several locations. Moreover, a number of decoupling capacitors may be connected to the power and ground planes. As one can expect, it is not an easy task to estimate the input inductance of the power and ground plane structure at the low frequency limit, not to say the input impedance in a wide frequency range. Therefore, software tools are essential for accurate modeling of power and ground plane structures. T

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