High Frequency Amplifier Specialist

4 days ago

Singapore beBeeRF Full time $90,000 - $120,000
RF Circuit Design Engineer

This is a high-impact role where you will design and develop power amplifier circuits operating between 0.2 and 7 GHz, with output power up to 50W. The ideal candidate has hands-on experience with RF power amplifier development, including load-pull, impedance matching, and performance tuning. Proficiency in simulation tools such as ADS, AWR, and optionally HFSS or CST is required.

Responsibilities:
  • Design and Develop PA Circuits
  • Lead PA module development including topology selection, schematic capture, and PCB layout.
  • Design for efficiency, gain, and linearity across a broad frequency spectrum.
  • Apply advanced impedance matching, stability analysis, and EM simulation techniques.

  • Simulation and Validation
  • Use simulation tools to perform circuit and electromagnetic analysis.
  • Perform load-pull measurements, S-parameter analysis, and linearity testing.
  • Validate designs in the lab using VNAs, spectrum analyzers, signal generators, and power meters.

  • Cross-Functional Collaboration
  • Work closely with PCB layout engineers to ensure best practices in high-frequency design.
  • Coordinate with system architects and digital/RF engineers to meet product specifications.
  • Support product engineering with documentation, design reviews, and lessons learned.

  • Key Deliverables
  • Complete first-pass design within the first 30 days.
  • Initiate simulations and guide initial PCB layout within the first 60 days.
  • Validate the prototype in lab conditions within the first 90 days.

Requirements:
  • Hands-on experience with RF power amplifier development.
  • Proficient in simulation tools such as ADS, AWR, and optionally HFSS or CST.
  • Skilled in testing with lab instruments such as VNAs, spectrum analyzers, and RF signal generators.
  • Proven ability to work with layout, digital, and product engineering teams.

What You'll Get:
  • A challenging role that defines the next generation of high-performance wireless systems.
  • An innovative environment to solve advanced RF engineering challenges.
  • Opportunities for career growth at the intersection of RF design, systems engineering, and product development.
  • The satisfaction of building solutions that matter for defense, robotics, and industrial autonomy.

Qualifications:
  • Degree in Electrical Engineering, RF Engineering, or a related field.
  • 5+ years in RF PA circuit design and validation.
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