Heat-sink modeling and design with dipole moments representing IC excitation

Zhenwei Yu*, Jason A. Mix, Soji Sajuyigbe, Kevin P. Slattery, David Pommerenke, Jun Fan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Electromagnetic field coupling and radiation from a heat sink is a challenging issue in the electromagnetic compatibility design of high-speed circuits. In order to accurately predict the fields excited by a heat sink, an approach is proposed in this paper to include the equivalent excitation of the heat sink, which is described by some dipole moments constructed from the near-field scanning of the integrated circuit beneath the heat sink. With both the dipole moments and the passive heat-sink structure incorporated in a full-wave model, near-field coupling and far-field radiation can be estimated, and the heat-sink structure can be optimized for mitigating unintentional interferences. Two examples are used to validate and demonstrate the proposed approach.

Original languageEnglish
Article number6296699
Pages (from-to)168-174
Number of pages7
JournalIEEE Transactions on Electromagnetic Compatibility
Issue number1
Publication statusPublished - 1 Jan 2013
Externally publishedYes


  • Dipole moments
  • electromagnetic coupling and radiation
  • heat-sink excitation
  • near-field scanning

ASJC Scopus subject areas

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


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