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Emmanuel Decrossas

Researcher

About

Education

  • MBA, 2020 University of the Redlands
  • Ph.D. 2012  University of Arkansas, Dept. Electrical Engineering
  • M.S. 2006 - Université Pierre et Marie Curie-Paris 6, Dept. Electrical Eng., Paris, France
  • B.S. 2004 - Université Pierre et Marie Curie-Paris 6, Dept. Eng. Science, Paris.

Research Interests

  • Modeling, optimization, and design of RF/Microwave components such as: low cost miniaturized and tunable microwave filters and antennas for wireless devices.
  • Simulation, design, fabrication and test of microwave devices.
  • RF/microwave measurements and equipment calibration.
  • Numerical analysis and scientific computation for electromagnetic applications using mode matching technique (MMT), method of moment (MoM), finite element method (FEM) and finite difference time domain (FDTD).
  • RF nanotechnology based on carbon nanotubes (CNTs)/graphene.
  • Electrical characterization of nano-materials for integration in electronic components.
  • Thin film characterization using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and atomic force microscope (AFM).
  • Micro/nano-fabrication technique in clean room environment including photolithography, E-beam lithography process.
  • High Frequency and power distribution networks using LTCC.

Experience

Professional Experience

  • Cognizant Engineer for EUROPA-REASON radar: The Europa mission will conduct detailed reconnaissance of Jupiter's moon Europa and investigate whether the icy moon could harbor conditions suitable for life. “Radar for Europa Assessment and Sounding: Ocean to Near-surface” (REASON) will be the primary instruments of the spacecraft. My role consists of designing and analyzing the VHF and HF RF dipole arrays performance mounted on the spacecraft. I manage a team of nine people including contractors to make sure that the development/fabrication and test match my predicted schedule and budget. Current
  • Lead Antenna Absorber Cover design: “Surface Water Ocean Topography (SWOT)”- is new space mission to make the first global survey of Earth's surface water, observe the fine details of the ocean's surface topography, and measure how water bodies change over time. My role is to design, test and deliver antenna cover/absorbers based on SiC composite materials to test the Ka-band Radar Interferometer (KaRIN) instrument in a vacuum chamber at full high power (2100W peak). Delivered in 2019
  • Cognizant Engineer Radio Occultation Antenna Instrument: “SENTINEL-6”- (ex-Jason-CS), as the reference mission of the Ocean Surface Topography constellation, should ensure the same (or better) level of performance as earlier Jason series. The fabricated antenna consists of an array of helices for radio-occultation science based on GPS signal (1.2-1.6 GHz). I made sure that my 3-D printed novel helix antenna design/fabrication and test are on-time and on budget. I managed a team of five people (Mech, thermal, structural engineers, draftmen and techs) and made sure that the development/fabrication and test match my predicted schedule. Delivered 2018.
  • Antenna Cognizant Engineer: “DARPA High Frequency Research (DHFR)” is a pair of CubeSat mission to observe the galactic noise. My role is to deliver on cost and on time a deployable dipole antenna (6m long) working closely with mechanical engineer, verify its RF performance (5-30 MHz). I also make sure that the development/fabrication and test match my predicted schedule and budget. Delivered 2017, successful deployment 2019.
  • Lead RF front end design: “Cold Atom Laboratory (CAL)”- will be a facility for the study of ultra-cold quantum gases in the microgravity environment of the International Space Station (ISS). The RF front design board combines the RF circuits board and loop probes that utilizes to radio frequency (RF) "knife" that continuously slices away the hottest atoms. Bose-Einstein condensation (BEC) were observed using this compact design by coupling the magnetic field radiating from the loop to the atom cloud. Delivered 2017. Successful mission 2018.
  • Lead UHF Antenna design: “MarCO (Mars Cube One)” is a two spacecraft mission to accompany the InSight Mars lander to provide communications relay during the landing phase, as the MRO, MAVEN, and Mars Odyssey orbiters will not be in position to receive InSight data. My role consisted of designing, testing and delivering a novel UHF deployable loop antenna for the CubeSat. Delivered 2016, successful mission 2018.
  • Lead GPS antenna: “NASA-ISRO Synthetic Aperture Radar (NISAR)” satellite is designed to observe and take measurements of some of the planet's most complex processes, including ecosystem disturbances, ice-sheet collapse, and natural hazards. The antenna configuration includes the analysis of the antenna location to mitigate the interaction with the spacecraft and radar instrument thru multipath issues. Delivered 2016. Launch scheduled on 2023.

Achievements

Awards & Recognitions

  • The Lew Allen Award for Excellence | For outstanding leadership and technological innovation advancing the field of low frequency antenna simulation and measurements. (2021)
  • NASA Award | NASA Early Career Achievement medal for early career achievement developing innovative spacecraft antennas, enabling novel space instruments and telecom systems in support of NASA's research mission, (2018)
  • Professional Society and External Organization Awards | Charles Elachi award for outstanding Early Career Achievement in the development of innovative antenna designs making missions successful, (2017)

Publications

  1. D. Smith, C. Jin, J.J. Simpson, E. Decrossas, "FDTD Modeling of Internal Electrostatic Discharge Events Coupled to High Frequency Antennas," IEEE transaction on Electromagnetic Compatibility, accepted 2021.
  2. Y. Hussein, J. Miller, C. Jin, V. Garkanian and E. Decrossas, “10-Error Budget Analysis Techniques Applied to Low Frequency Antenna Far-Field Measurement,” IEEE transaction on Electromagnetic Compatibility, accepted with major revision 2021.
  3. N. Chahat, J. Miller, E Decrossas, and C. Duncan, “Mars Helicopter telecommunication link: antennas, propagation, and link budget,” IEEE Antenna Propag. Magazine, accepted 2020.
  4. N. Chahat, E. Decrossas, et al., "Advanced CubeSat Antennas for Deep Space and Earth Science Missions: A review," in IEEE Antennas and Propagation Magazine, vol. 61, no. 5, pp. 37-46, Oct. 2019.
  5. U. Shah, E. Decrossas, C. Jung-Kubiak, T. Reck, G. Chattopadhyay, I. Mehdi, J. Oberhammer, “Submillimeter-Wave 3.3-bit RF MEMS Phase Shifter Integrated in Micromachined Waveguide,” IEEE Trans. on Terahertz Science and Technology, vol. 6, no. 5, pp. 706-715, 2016