muri - university of illinois at chicago - p.i. prof. piergiorgio l.e. uslenghi analysis and design...
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MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi
Analysis and design of ultrawide-band and high-power microwave Analysis and design of ultrawide-band and high-power microwave pulse interactions with electronic circuits and systemspulse interactions with electronic circuits and systems
GoalsGoals Understand and predict the effects of the Understand and predict the effects of the
electromagnetic threatelectromagnetic threat represented by represented by high power high power microwavemicrowave (HPM) and (HPM) and ultrawide-bandultrawide-band (UWB) (UWB) pulsespulses on on digital electronic systems found inside fixed or moving digital electronic systems found inside fixed or moving platforms.platforms.
Develop recommendations for performing field Develop recommendations for performing field tests/measurementstests/measurements
MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi
MURI ParticipantsMURI Participants
University of Illinois at ChicagoUniversity of Illinois at Chicago
Frequency Domain Electromagnetic Modeling, Fault tolerantFrequency Domain Electromagnetic Modeling, Fault tolerant
computing systems.computing systems.
P.L.E. Uslenghi, P.I.P.L.E. Uslenghi, P.I.
H-Y. D. Yang, S. Dutt, D. Erricolo.H-Y. D. Yang, S. Dutt, D. Erricolo.
Clemson UniversityClemson University
Generalized scattering matrices, Equivalent circuit models,Generalized scattering matrices, Equivalent circuit models,
non-linear circuit testing.non-linear circuit testing.
C. M. Butler,C. M. Butler, A. Q. Martin, M. A. Bridgewood, F. M. Tesche.A. Q. Martin, M. A. Bridgewood, F. M. Tesche.
MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi
MURI ParticipantsMURI Participants
University of HoustonUniversity of Houston
Integral equation methods, Fast Multipole Moment method.Integral equation methods, Fast Multipole Moment method.
D. R. Wilton, D. R. Jackson.D. R. Wilton, D. R. Jackson.
University of Illinois at Urbana-ChampaignUniversity of Illinois at Urbana-Champaign
Frequency and Time-domain electromagnetic modeling ofFrequency and Time-domain electromagnetic modeling of
circuit components, Hybrid electromagnetic/circuit solvers.circuit components, Hybrid electromagnetic/circuit solvers.
E. Michielssen, A. C. Cangellaris.E. Michielssen, A. C. Cangellaris.
University of MichiganUniversity of Michigan
Hybrid Finite Element Method, VLSI Design, VLSI TestingHybrid Finite Element Method, VLSI Design, VLSI Testing
VLSI Layout automation.VLSI Layout automation.
J. L. Volakis, V. V. Liepa, P. Mazumder.J. L. Volakis, V. V. Liepa, P. Mazumder.
MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi
IntroductionIntroductionThe high power electromagnetic pulse threatThe high power electromagnetic pulse threat
Pulser
External EM Source
(Impulse Radiating Antenna) Illuminated TargetHPEM Fields
E
H
•Nuclear electromagnetic pulse (NEMP)old, studied, understood
•New electromagnetic threatsultrawide-band (UWB) and narrow
bandhigh-power microwave (HPM)
pulses
MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi
MURI Research PlanMURI Research Plan
GoalGoal
Understand and predict the effects of an aggressor Understand and predict the effects of an aggressor signalsignal
into a complex system.into a complex system.
HPM/UWBsources
antennascracksaperturescables
propagationto interior
interaction withdigital circuits
MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi
MURI Research PlanMURI Research Plan
Technology ElementsTasks
Large-scale frequency domain analysisof HPM penetration and coupling into pieces
Time-domain analysis of HPM/UWBpenetration and coupling into pieces
Coupling between pieces with EM topology
Source and coupling path models forintegrated circuits and systems
Hybrid Finite Element Method,Fast multipole method in MomentMethod
Time-Domain Integral EquationMethod with Plane-waveTime-Domain Algorithm
Equivalent Circuit Models andGeneralized Scattering Matricesfor Pieces
Frequency- and Time-DomainElectromagnetic Modeling ofLinear Circuit Components
Volakis, Butler,Jackson, UslenghiWilton
Michielssen, Cangellaris,Wilton, Jackson
Tesche, ButlerMartin, Volakis
Cangellaris,Yang,Michielssen
Collaborators
MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi
MURI Research PlanMURI Research Plan
Technology ElementsTasks
HPM/UWB interaction with nonlinear and active devices
HPM/UWB Impact on DigitalCircuits and Computers:Fault Evaluation
Experiment and design of HPW/UWB impact on electronic systems
Transient Time-DomainNonlinear Circuit Analysis
Evaluation of the System Response and the Changeof Logic State
Nonlinear Circuit Testing andEvaluation of the Impact onsubsystems and systems
Collaborators
Cangellaris,Erricolo,Mazumder
Mazumder, Dutt,Tesche
Tesche, Liepa,BridgewoodUslenghi
MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi
Example of capabilities of our computational software toolsExample of capabilities of our computational software tools
30
-150
60
-120
90
-90
120
-60
150
-30
180 0
-30
-20
-10
0
Large scale calculation for antenna radiation mounted on a Global Hawk aircraftthat 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 toolsExample of capabilities of our computational software tools
9 0 m ils
2 c m
5 .8 5 cm
r
r
slot array placed60mils below top surface of 90mils layer
slot array at 30milsbelow top of 90mils layer 9 0 m ils
absorber, jr
6 .4 5 cm
Antenna ofSpecified Pattern
MomentMethod Region
Physical Optics Region
J2P O M2
P O
J2MM
M2MM
J1MM
M1MM
J1P O
M1P O
r
r
x
y z
aρbρ
ab
Conformal array and frequencyselective surfaces
Broadband communication antenna
Antenna + RadomeBroadband radar array
MURI - University of Illinois at Chicago - P.I. Prof. Piergiorgio L.E. Uslenghi
Example of capabilities of our computational software toolsExample of capabilities of our computational software tools
Snapshot of currents on a VFY218aircraft illuminated by a pulse incidentfrom broadside
Snapshot of currents on a computer chassis with its ventilation slot illuminated by an external wave.