Analysis of Simple Two-Capacitor Low-Pass Filters

Theodore M. Zeeff*, Todd H. Hubing, Thomas P. Van Doren, David Pommerenke

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)595-601
Number of pages7
JournalIEEE Transactions on Electromagnetic Compatibility
Issue number4
Publication statusPublished - 1 Nov 2003
Externally publishedYes


  • I/O filtering
  • Low-pass filters
  • Mutual inductance

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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