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Sr. RF Front-End Engineer — Phased Array Antenna & RF Front-End Electronics
E-Space
Saratoga, USA
Full-time
Senior · 8+ years experience
Onsite
USD 160000-195000 yearly / year
Discovered 1 weeks ago
Keysight ADSCadence AWRAnsys HFSSCST Studio SuiteAltair FEKOMATLAB
Free
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Keysight ADSCadence AWRAnsys HFSS
Key Skills for This Role
Keysight ADSCadence AWRAnsys HFSSCST Studio SuiteAltair FEKOMATLAB
Full Job Posting
- Own RF front-end hardware from requirements and architecture through device-level circuit design, schematic capture, PCB layout, prototype bring-up, qualification, and release.
- Design transmit and receive chains using power amplifiers, low-noise amplifiers, filters, duplexers, switches, couplers, attenuators, mixers, synthesizers, transceivers, phase shifters, beamformer devices, and RF matching networks.
- Perform RF cascade analyses and architectural trade studies covering gain, noise figure, sensitivity, linearity, P1dB, IP3, dynamic range, EIRP, efficiency, stability, spurious performance, and link margin, including simultaneous transmit-and-receive architectures using frequency-division duplexing.
- Define component specifications and select parts based on RF performance, power consumption, thermal behavior, size, manufacturability, availability, cost, reliability, and suitability for the space environment.
- Design and review controlled-impedance transmission lines, grounding, shielding, bias networks, RF PCB stackups , and critical component placement and routing.
- Develop RF and mixed-signal boards incorporating ADCs, DACs, modulation, and demodulation where digitized RF interfaces are required .
- Contribute to RF signal-distribution architectures that transport RF signals over fiber-optic links using analog RF-photonic or digitized approaches.
- Integrate RF electronics with phased-array antenna elements, beamforming networks, digital and baseband electronics, firmware, power systems, thermal systems, and mechanical structures.
- Develop and execute amplitude and phase calibration methods for phased-array RF channels, accounting for channel variation, temperature effects, mutual coupling, and calibration stability.
- Plan and conduct RF characterization using VNAs, spectrum analyzers, signal generators, power meters, noise-figure equipment, oscilloscopes, and near-field or far-field antenna ranges.
- Support environmental qualification of spaceflight hardware, including thermal-vacuum , vibration, and radiation testing.
- Correlate simulation results with measurements, identify the root causes of performance discrepancies, and drive corrective actions through data-driven troubleshooting.
- Document requirements, analyses, design decisions, test procedures, results, and technical risks, and present clear recommendations at design reviews.
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