Title :
Analysis of simple two-capacitor low-pass filters
Author :
Zeeff, Theodore M. ; Hubing, Todd H. ; Van Doren, Thomas P. ; Pommerenke, David
Author_Institution :
Hewlett-Packard Co., San Diego, CA, USA
Abstract :
The performance of typical low-pass capacitor filters is limited by the mutual inductance between the input and output sides of the filter. This paper describes how two appropriately spaced capacitors can be used to construct a low-pass filter with significantly better high-frequency performance than a one-capacitor filter. Laboratory measurements and numerical simulations are used to quantify the mutual inductance and compare the performance of one- and two-capacitor low-pass filters.
Keywords :
Bode diagrams; capacitors; circuit simulation; electromagnetic compatibility; equivalent circuits; inductance; low-pass filters; lumped parameter networks; Bode plot; I/O filtering; equivalent circuit; high-frequency performance; lumped-element model; mutual inductance; numerical simulations; parasitic inductances; performance analysis; spaced capacitors; two-capacitor low-pass filters; voltage transfer coefficient; Capacitors; Electromagnetic measurements; Frequency; Immune system; Inductance; Laboratories; Low pass filters; Magnetic flux; Magnetic separation; Voltage;
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
DOI :
10.1109/TEMC.2003.819059
