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Advanced Simulation

The twentieth century has ended in Electronic Engineering by a revolution in wire and wireless communications technologies, which calls for another in the field of Computer Aided Design (CAD) techniques and tools to keep pace with the quickly evolving technology. Indeed, the constant miniaturization of semiconductor technology has expanded the VLSI concept from digital to analogue radio-frequency (RF) and microwave world. The new high integration systems (RF SIP / SOC) pose problems that exceed the capabilities of simulation tools previously designed for MMIC and RFIC’s, accentuating in particular the problems of mixed digital/analogue signals, multiple scale and multi-physics modeling.

The Advanced Simulation project focuses on the development of numerical techniques and tools that will allow efficient multi-physics/multiple-scale (component - circuit - system) modeling and simulation of RF front ends of telecommunication and radar systems containing tens and hundreds of thousands of transistor

 

Multi-physics simulation and modeling of componentsTitre

  • Device physics simulation
  • Electro-Thermal coupling simulation and modeling
  • Model order reduction techniques for electro-thermal coupling

Thermal modelling of LDMOS

Transistor-level simulation of circuit blocs and systems

  • Simulation algorithms for large signal analysis: Harmonic balance, Time balance, Shooting, Envelope transient, Transient
  • Simulation techniques for time varying systems: large signal stability analysis, noise analysis in mixers, oscillators, PLL and receivers
  • Hierarchical analysis techniques for full chip simulation.
  • Industry standard simulation tools design (Agilent/Eesof GoldenGate RFIC suite development partner

GoldenGate RFIC simulator snapshot

Analog circuit bloc macromodeling

  • Modeling of slow and fast dynamics interaction of RF and microwave circuits (matching and biasing networks , thermal and trapping effects)
  • Nonlinear mismatch effects in power amplifiers (nonlinear S parameters)
  • Black box and grey box approaches: Volterra series models, Nonlinear model order reduction techniques

Block-level system simulation

  • Advanced circuit macro models port in system level simulation tools (Scilab/Scicos, Matlab/Simulink)
  • Co-simulation system-circuit interfaces (Matlab/Simulink, Scilab/Scicos and circuit simulation)
  • Simulation of large phased array antenna for civil and military applications
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