Sr. Antenna Design Engineer

PierSight; Ahmedabad District; On-site; INR 1,200,000 - 2,400,000; Full time

Job summary

PierSight is seeking a Sr. Antenna Design Engineer to lead the design and development of a large deployable reflectarray antenna for spaceborne SAR payloads.

The role requires 4–6 years of EM/antenna experience, hands-on reflectarray/phased-array work, and strong HFSS knowledge for unit-cell and full-wave simulations; collaboration with mechanical teams is essential for deployment and surface accuracy.

Qualifications

• 4–6 years of EM/antenna design experience, with reflectarray/phased-array work
• Working knowledge of ANSYS HFSS for unit-cell and full-wave simulations
• Experience with TICRA Tools (GRASP/QUPES/ESTEEM) is a strong plus
• Understanding of SAR antenna requirements and space hardware constraints
• Hands-on RF lab instrumentation and antenna measurement experience
• Excellent interpersonal and communication skills

Responsibilities

• Lead design and development of a large deployable reflectarray antenna for spaceborne SAR payloads
• Design and optimize horn antenna feed system and illumination
• Perform full-wave and physical-optics modeling including Floquet unit-cell analysis
• Optimize antenna for deployment tolerances
• Collaborate with mechanical teams on folding architecture and surface accuracy
• Analyze gain, beamwidth, sidelobes, cross-polarization, and bandwidth
• Plan antenna characterization and measurement campaigns
• Evaluate vendors and RF hardware supply chain

Skills

EM/antenna design

Reflectarray

Phased-array

Aperture antenna

Unit-cell theory

Periodic boundary / Floquet

Feed design

Aperture synthesis

SAR requirements

RF measurements

Communication skills

Tools

ANSYS HFSS

GRASP

QUPES

ESTEEM

Job description

Sr. Antenna Design Engineer at PierSight

Location: Ahmedabad, Gujarat, India

Role Type: Full-time

Experience Requirement: 4-6 years

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