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Senior RF Engineer
Plessey Semiconductors
Oxford, GBR
Full-time
Senior · 6+ years experience
Onsite
Discovered 3 days ago
HyperLynxAnsys SIADSAltium
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Key Skills for This Role
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Key Responsibilities
- Design the analogue high-speed signal path from the drive electronics to the optical source, including driver circuitry, biasing, high-speed serial interfacing, and impedance matching.
- Evaluate, select, and qualify high-speed driver components against the relevant interface, bandwidth, and drive requirements.
- Design controlled-impedance, differential RF/microwave PCBs, managing trace geometry, return paths, via structures, and launch design.
- Own signal integrity across the full electrical path, minimising packaging and interconnect parasitics that limit achievable data rate.
- Design and characterise the optical receive chain, including photodetector and TIA, with layout optimised for low noise and sensitivity.
- Apply and tune transmit and receive equalisation to extend usable bandwidth.
- Carry out S-parameter measurement, eye-diagram and jitter analysis, and high-speed probing to separate intrinsic device performance from packaging effects.
- Build and maintain RF link budgets, and translate findings into structured feedback for the device and photonics teams.
- Where experience allows, contribute to the wider electronic design — schematic capture, PCB layout, power and voltage-regulator design, and FPGA integration and bring-up while the team grows.
- Document results and contribute to the characterisation data that drives design iteration.
Skills, Knowledge and Expertise
- Degree (BEng/MEng) or PhD in Electronic Engineering, RF/Microwave Engineering, Physics, or a related field, with substantial relevant experience at senior level (typically 6+ years).
- Proven RF/microwave PCB design: controlled impedance, differential pairs, via management, and launch design at high frequencies.
- High-speed serial interfaces, including AC coupling and biasing for high-speed signal paths.
- Evaluating and qualifying high-speed driver and amplifier components.
- S-parameter (VNA) measurement, calibration, and high-speed probing.
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