RF Power Amplifier (PA) Design Engineer

Aptino, Inc.; Dallas (TX); On-site; USD 90,000 - 150,000; Full time

Job summary

Aptino, Inc. in Dallas, TX is seeking an experienced RF Power Amplifier (PA) Design Engineer for a 12-month assignment. You will design, optimize, and validate Doherty PA architectures, perform impedance matching, load-pull, and RF testing to meet performance targets.

Your work includes correlating simulations with hardware measurements, supporting prototype bring-up, and documenting design decisions across temperature and supply variations to ensure robust PA performance.

Qualifications

• Strong experience in RF PA design and development.
• Knowledge of Doherty PA design, matching networks, and load-pull techniques.
• Experience with RF simulation, performance analysis, and optimization.
• Understanding of DPD and PA linearity optimization.
• Hands-on experience in RF testing, prototype validation, and debugging.
• Ability to perform design verification and document test results across operating conditions.

Responsibilities

• Design and develop RF power amplifiers, including Doherty PA architectures.
• Perform RF impedance matching, load-pull analysis, and circuit optimization.
• Simulate and evaluate gain, output power, efficiency, linearity, stability, and ruggedness.
• Analyze PA interaction with Digital Predistortion (DPD) and optimize overall performance.
• Develop PA schematics, select components, conduct design reviews, and maintain technical documentation.
• Support prototype bring-up, RF measurements, hardware troubleshooting, and root-cause analysis.
• Validate PA performance under varying temperature and supply-voltage conditions.
• Correlate simulation results with hardware measurements and implement design improvements.

Skills

RF PA design

Doherty PA design

Load-pull techniques

RF simulation

DPD understanding

RF testing

Job description

Duration: 12 Months

Job Summary

We are looking for an experienced RF Power Amplifier (PA) Design Engineer with expertise in RF circuit design, Doherty PA architecture, simulation, and hardware validation. The candidate will be responsible for developing and optimizing PA designs to meet performance requirements for power, efficiency, linearity, and stability.

Key Responsibilities

• Design and develop RF power amplifiers, including Doherty PA architectures.
• Perform RF impedance matching, load-pull analysis, and circuit optimization.
• Simulate and evaluate gain, output power, efficiency, linearity, stability, and ruggedness.
• Analyze PA interaction with Digital Predistortion (DPD) and optimize overall performance.
• Develop PA schematics, select components, conduct design reviews, and maintain technical documentation.
• Support prototype bring-up, RF measurements, hardware troubleshooting, and root-cause analysis.
• Validate PA performance under varying temperature and supply-voltage conditions.
• Correlate simulation results with hardware measurements and implement design improvements.

Required Skills

• Strong experience in RF PA design and development.
• Knowledge of Doherty PA design, matching networks, and load-pull techniques.
• Experience with RF simulation, performance analysis, and optimization.
• Understanding of DPD and PA linearity optimization.
• Hands-on experience in RF testing, prototype validation, and debugging.
• Ability to perform design verification and document test results across operating conditions.