Maximum radiated emissions evaluation for the Heatsink/IC structure using the measured near electrical field

Guangyao Shen*, Sen Yang, Jingdong Sun, Shuai Xu, David J. Pommerenke, Victor V. Khilkevich

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Creating an equivalent field source is an efficient method for predicting radiated emissions from IC structures. In this paper, the maximum radiated emissions for a heat-sink/IC structure is predicted by creating an equivalent source from the measured electrical field (E-field) in the gap between the heatsink and IC. The E-field is detected by an E-field probe made of an open coaxial cable coated with absorbing material. A numerical model is built in the computer simulation technology microwave studio to obtain the maximum radiated field, where the measured E-field is used as a source to excite the heat-sink model. The evaluated maximum radiated field is in good agreement with the measured value; the error is within 7 dB up to 40 GHz for the source with phase, and 7 dB up to 10 GHz for the phaseless measurement.

Original languageEnglish
Article number7893707
Pages (from-to)1408-1414
Number of pages7
JournalIEEE Transactions on Electromagnetic Compatibility
Issue number5
Publication statusPublished - 1 Oct 2017
Externally publishedYes


  • Equivalent principle
  • field transformation
  • maximized radiated field
  • probe calibration

ASJC Scopus subject areas

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

Cite this