About Us

Were you photographed at the Stochastica launch party?

Who said electromagnetic engineering couldn’t be fun? RobustPhysics officially launched its new Stochastica EMC design software product at the IEEE EMC and Signal Integrity Symposium in Grand Rapids MI, 01-04 August 2023. It was a multi-faceted affair, including an inaugural Special Session on Stochastic Simulation, three (3) separate Stochastica software demonstration/tutorial sessions… and our own private launch party. Thanks to all who came and helped us celebrate this significant new event!

About Us

RobustPhysics founder Paul Bremner has 40 years experience in engineering applications of stochastic wave mechanics. He was the founder in 1991 of VibroAcoustic Sciences Inc and principal architect of the AutoSEA statistical wavefield modeling software for vibro-acoustic engineering design. The business was acquired in 2002 by ESI Group who re-branded the software VA One; which is now one of the most widely used vibro-acoustic simulation tools – in aerospace, automotive and other major industries - worldwide.RobustPhysics (division of Sonelite Inc.) was founded in 2010 to develop statistical wave mechanics modeling software specifically for the needs of E/E engineers responsible for EMC qualification of large, complex and “uncertain” electronic systems. From 2010 to 2013, RobustPhysics partnered with Prof. R.S. Langley at Cambridge University UK and sponsored fundamental research on hybrid deterministic-statistical methods for prediction of maximum expected RF electromagnetic field strength in connected cavities and maximum expected coupled currents and terminal voltages in complex cable harnesses.In 2014, RobustPhysics commenced a collaboration with NASA Launch Service Program (LSP) - Dr. Dawn Trout and Dr. Gabriel Vazquez at Kennedy Space Center. NASA LSP provided experimental validation support and sponsored RobustPhysics' studies of statistical power balance modeling for spacecraft applications. In 2016, the collaboration received Best EMC Symposium Paper Award at the IEEE EMC Symposium in Ottawa, Canada for a joint paper titled "Canonical Statistical Model for Maximum Expected Immission of Wire Conductor in an Aperture Enclosure“.
In 2017, Profs. Chuck Bunting and Jim West at Oklahoma State University joined the collaboration, resulting in additional IEEE EMC Transactions and Symposium papers which extended research and experimental validation of statistical EM field modeling methods. In December 2020, the team was awarded a NASA Phase II STTR contract to support the development, experimental validation and commercial launch of a first general purpose, statistical EMC simulation software product.

Technical References

  • J.A. Stratton, Electromagnetic Theory. New York: McGraw-Hill, 1941
  • Holland, R. and St.John, R., Statistical Electromagnetics , 1st Ed., CRC Philadelphia PA, 1999
  • C.R. Paul, Analysis of Multiconductor Transmission Lines, 2nd Edition, Wiley-IEEE Press, October 2007
  • D. A. Hill, Electromagnetic Fields in Cavities. Deterministic and Statistical Theories, John Wiley & Sons, Hoboken, New Jersey 2009
  • Langley, R.S., “A Reciprocity Approach for Computing the Response of Wiring Systems to Diffuse Electromagnetic Fields”, IEEE Trans. EMC 2010
  • P.G. Bremner, "Modal Expansion Basis for Statistical Estimation of Maximum Expected Field Strength in Enclosures", Proc. IEEE EMC Symposium, Santa Clara, March 2015
  • Bremner, Vazquez & Trout, “Canonical Statistical Model for Maximum Expected Immission of Wire Conductor in an Aperture Enclosure”, Proc. IEEE EMC Symp., Ottawa Canada, Oct 2016
  • P.G. Bremner, D.H. Trout, “On the Maximum Expected Electric Field in Electrically Small, Under-moded Enclosures”, Paper 32804 ESA Workshop on Aerospace EMC, Budapest, Hungary, May 2019
  • West, J.C. & Bunting, C.F., “Effects of Frequency Stirring on Reverberation Chamber Testing: An Analysis as a Radiation Problem”, IEEE Trans EMC, 61, 4, pp 1345 – 1352, Aug. 2019
  • Bremner, P., West, J., Afra, R., Bunting, C., Vazquez, G. and Trout, D., “Maximum Expected Electric Field in Multiple Connected Cavities – Experimental Validation of Stochastic Power Flow Model”, Proc. IEEE EMC Symp, Grand Rapids, August 2023
  • Dai, W., Bremner, P.G., Mustafa, M.M., West, J.C. and Bunting, C.F., " Combined Conducted and Radiation Coupling of Conductors in an Enclosure - Numerical Validation of Stochastic Wavefield Model", Proc. IEEE EMC Symp, Grand Rapids, August 2023
  • Bremner, P.G., “Recent Developments in Stochastic Power Flow Enable a New Solution for System-level EMC Modelling”, Proc. IEEE EMC Symp, Grand Rapids, August 2023

Patents

[1] Langley, R.S., “Diffuse Field Determination Using Diffuse Field Reciprocity”, US Patent 10,338,117 B2[2] Langley, R.S. et al, “[Simulation Software] for Determining Statistical Mean and Max Expected Variance of EM Energy Transmission between Coupled Cavities”, US Pat 10379147 B2[3] Langley, R.S. et al, “[Simulation Software] for Determining Statistics of Current in an Electrical System Exposed to Diffuse Electromagnetic Fields”, US Pat 10156599[4] Bremner, P.G., “Methods and Systems for Determining the Response of a Reverberant System”, US Pat 10565326 B2[5] Bremner, P.G., "Methods and Systems for Determining Probability Density Function (Max, Mean, Min) of any Localized Wavefield Response of a Reverberant System", US Pat Application 63421178, filed November 2022.

Contact us if you'd like to learn more ...

We are interested and avaialble to discuss how this new technology could be implemented to improve EMC engineering for your organization
11622 El Camino Real San Diego, CA, 92130
PO Box 883,Del Mar, CA 92014
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