EMIMEP

R&I Week Seminar « Microwave Design in Space Application » by Fabrice Delahaye (Thales Alenia Space)

Dr. Fabrice Delahaye (Thales Alenia Space, France) held a seminar during the EMIMEP Research & Industrial at the Technical University of Cluj-Napoca (Romania) on Thursday 30 May 2024 entitled «Microwave Design in Space Application».

Abstract.

  • Introduction to space applications
    • Introduction
    • Satellite mission : why do we need satellite?
  • Microwave design in space applications
    • Technologies used for RF design
    • Technologies and frequency bands over space application
    • Comparison of different technologies : III-V vs SIGe
    • Elements of technology
  • Foundry
    • RF design library example (Design Kit)
    • MMIC schematic extraction
  • Methodology
    • Specification example and technology choice
    • Computer added design for MMIC and RFIC design (DRC, LVS, EM…)
    • Design method : electrical schema vs electromagnetic simulation
    • Design constraints (process variation, packaging, …)
  • Design of passive circuits
    • RF coupler
    • RF combiner
    • RF divider
  • Design of active circuits
    • Linear and non linear operation
    • Noise study on linear circuit
    • Choice of the quiescent point on amplifier design
    • MMIC / RFIC sizing and gain definition
    • LNA design
    • Linearity study (P1dB, OIP3, NPR, ACPR, memory effects)
    • HPA design
    • Mixer design
  • Stability analysis
    • Linear circuit stability analysis : Rollett factor, Delta, stability circles
    • Specific circuit stability analysis (cascode amplifier) : Nyquist analysis
    • Specific non-linear circuit stability analysis (HPA) : MP analysis

Biography. Graduated from the ENSEEIHT Toulouse (France) with a degree in Microwave Engineering.

  • Professional experience.
    • From 1997 to 2010 at Thales Alenia Space. In the SSPA Team (Solid State Power Amplifier): Test & design
    • Since 2010 : MMIC Designer at Thales Alenia Space
  • Significant experience in Microwave Circuit Design (1 to 40 GHz) :
    • High Power Amplifiers in GaN technologyMMIC and Hybrid
    • Monolithic Microwave Integrated Circuits in GaAs & GaN technology
    • Proficient in linear, non-linear circuits and electromagnetic simulation tools: ADS, Momentum, HFSS
    • Coordination and management of R&D projects up to 500 K€