Key Responsibilities

We are seeking an exceptional Sr. Antenna Design Engineer to lead the design and development of a large deployable reflectarray antenna for our spaceborne SAR payloads.
Design and develop deployable reflectarray antennas for spaceborne Synthetic Aperture Radar (SAR) payloads, from concept through flight hardware
Design and optimize the Horn antenna feed system and characterize feed-to-aperture illumination
Perform full-wave and physical-optics modeling, including periodic (Floquet) unit-cell analysis and full-aperture radiation prediction
Optimize the antenna for deployment/manufacturing tolerances.
Work closely with mechanical and structures teams on the folding architecture, stowed/deployed envelope, and surface accuracy requirements for a large aperture
Analyze and control key performance metrics: gain, beamwidth, sidelobe levels, cross-polarization, and bandwidth, including sensitivity to deployment repeatability and thermal distortion
Perform engineering calculations and link/aperture trade studies to determine antenna performance from design parameters
Plan and perform antenna characterization and near-field/far-field measurement campaigns, including verification of deployed performance
Evaluate vendors and supply chain for antenna fabrication, materials, and RF hardware

Requirements

4–6 years of experience in EM/antenna design, with hands-on reflectarray, phased-array, or aperture-antenna work strongly preferred
Working knowledge of ANSYS HFSS is required (unit-cell and full-wave simulation)
Experience with TICRA Tools (GRASP / QUPES / ESTEEM) for reflectarray and reflector analysis is a strong plus
Solid grasp of reflectarray theory: unit-cell phase response, periodic boundary/Floquet analysis, feed design, and aperture synthesis
Familiarity with deployable/large-aperture antenna concepts and the RF-mechanical tradeoffs(surface tolerance, panel alignment, deployment repeatability)
Understanding of SAR antenna requirements (X - band as applicable) and space-hardware constraints
Hands-on experience with RF lab instrumentation and antenna measurement (network analyzers, spectrum analyzers, near-field/far-field ranges)
Excellent interpersonal and communication skills

Job description provided by PierSight.
View the original posting