MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi Analysis and design of ultrawide-band and high-power microwave pulse interactions with electronic circuits and systems Goals n Understand and predict the effects of the electromagnetic threat represented by high power microwave (HPM) and ultrawide-band (UWB) pulses on digital electronic systems found inside fixed or moving platforms. n Develop recommendations for performing field tests/measurements

MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi MURI Participants University of Illinois at Chicago Frequency Domain Electromagnetic Modeling, Fault tolerant computing systems. P.L.E. Uslenghi, P.I. H-Y. D. Yang, S. Dutt, D. Erricolo. Clemson University Generalized scattering matrices, Equivalent circuit models, non-linear circuit testing. C. M. Butler,A. Q. Martin, M. A. Bridgewood, F. M. Tesche.

MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi MURI Participants University of Houston Integral equation methods, Fast Multipole Moment method. D. R. Wilton, D. R. Jackson. University of Illinois at Urbana-Champaign Frequency and Time-domain electromagnetic modeling of circuit components, Hybrid electromagnetic/circuit solvers. E. Michielssen, A. C. Cangellaris. University of Michigan Hybrid Finite Element Method, VLSI Design, VLSI Testing VLSI Layout automation. J. L. Volakis, V. V. Liepa, P. Mazumder.

MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi Introduction The high power electromagnetic pulse threat Nuclear electromagnetic pulse (NEMP) old, studied, understood New electromagnetic threats ultrawide-band (UWB) and narrow band high-power microwave (HPM) pulses

MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi MURI Research Plan Goal Understand and predict the effects of an aggressor signal into a complex system. HPM/UWB sources antennas cracks apertures cables propagation to interior interaction with digital circuits

MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi MURI Research Plan Technology ElementsTasks Large-scale frequency domain analysis of HPM penetration and coupling into pieces Time-domain analysis of HPM/UWB penetration and coupling into pieces Coupling between pieces with EM topology Source and coupling path models for integrated circuits and systems Hybrid Finite Element Method, Fast multipole method in Moment Method Time-Domain Integral Equation Method with Plane-wave Time-Domain Algorithm Equivalent Circuit Models and Generalized Scattering Matrices for Pieces Frequency- and Time-Domain Electromagnetic Modeling of Linear Circuit Components Volakis, Butler, Jackson, Uslenghi Wilton Michielssen, Cangellaris, Wilton, Jackson Tesche, Butler Martin, Volakis Cangellaris, Yang, Michielssen Collaborators

MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi MURI Research Plan Technology ElementsTasks HPM/UWB interaction with nonlinear and active devices HPM/UWB Impact on Digital Circuits and Computers: Fault Evaluation Experiment and design of HPW/UWB impact on electronic systems Transient Time-Domain Nonlinear Circuit Analysis Evaluation of the System Response and the Change of Logic State Nonlinear Circuit Testing and Evaluation of the Impact on subsystems and systems Collaborators Cangellaris, Erricolo, Mazumder Mazumder, Dutt, Tesche Tesche, Liepa, Bridgewood Uslenghi

MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi Example of capabilities of our computational software tools Large scale calculation for antenna radiation mounted on a Global Hawk aircraft that is 115ft wide x 44ft long. Calculations Measured

MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi Example of capabilities of our computational software tools Conformal array and frequency selective surfaces Broadband communication antenna Antenna + Radome Broadband radar array

MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi Example of capabilities of our computational software tools Snapshot of currents on a VFY218 aircraft illuminated by a pulse incident from broadside Snapshot of currents on a computer chassis with its ventilation slot illuminated by an external wave.