Assessment of the Antenna-Equivalence Approach to Common-Mode Input Impedance Modeling

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

21 Downloads (Pure)

Abstract

Analytical modeling of the common-mode input impedance of a motor along with its cable for various installation characteristics would allow designers to assess EMI levels and to evaluate in an early stage if adaptations are needed in their cable installation. Earlier work has shown that the input impedance over frequency of such a system is mostly dominated by the cable. A common assumption is that a cable can be approximated as a monopole antenna above a ground plane, which has an input impedance equivalent to that of a dipole with a correction factor. We compare the Hallén and King & Middleton dipole models to a measurement setup which is designed to reproduce parastic effects from the installation, to assess the validity of the analytical model. We analyze these results for various distances between the cable and the groundplane. We show that large discrepancies occur due to paristics of the installation and the presence of the groundplane, but that for some applications such closed-form analytical models may suffice in assessing frequencies at which radiated emissions occur.
Original languageEnglish
Title of host publication2021 Joint IEEE International Symposium on Electromagnetic Compatibility Signal and Power Integrity, and EMC Europe, EMC/SI/PI/EMC Europe 2021
PublisherInstitute of Electrical and Electronics Engineers
Pages457-461
Number of pages5
ISBN (Electronic)978-1-6654-4888-8
DOIs
Publication statusPublished - 19 Oct 2021
Event2021 Joint IEEE International Symposium on Electromagnetic Compatibility Signal and Power Integrity, and EMC Europe, EMC/SI/PI/EMC Europe 2021 - Raleigh, United States
Duration: 26 Jul 202113 Aug 2021

Conference

Conference2021 Joint IEEE International Symposium on Electromagnetic Compatibility Signal and Power Integrity, and EMC Europe, EMC/SI/PI/EMC Europe 2021
Country/TerritoryUnited States
CityRaleigh
Period26/07/2113/08/21

Keywords

  • Antenna
  • Common-mode
  • EMC
  • EMI
  • Hallén
  • Impedance
  • King and Middleton
  • Model
  • Thin-wire theory

Fingerprint

Dive into the research topics of 'Assessment of the Antenna-Equivalence Approach to Common-Mode Input Impedance Modeling'. Together they form a unique fingerprint.

Cite this