• Ref# 4076
• Power Amplifier Design Engineer

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Contact:   Carl Schumacher
Location:  Richardson, TX

Job Description

• Develop high efficiency RF power amplifier designs and platforms for broadband wireless systems.
• Conduct schematic capture and PCB layout of RF power amplifier and other RF circuits.
• Develop power amplifier linearization techniques and efficiency improvement techniques such as predistortion, envelope tracking, Doherty, etc.
• Construct non-linear models of power circuits and simulate performance using ADS (linear and harmonic balance).
• Optimize power amplifier bias and matching circuits to meet efficiency and linearity requirements
• Develop and validate power amplifier line-up analysis against requirements
• Conduct testing and verification of power amplifier ACPR, EVM, and PAE.
• Document analysis results and trade studies.
• Derive and specify power amplifier and transceiver block performance requirements.

Qualifications

• Background in high power (5 to 50) watt, multi-carrier RF power amplifier designs for common wireless standards using LDMOS, GaAs, and/or GaN devices Experience is optimizing amplifier bias and matching to meet efficiency and linearity requirements
• Background in schematic capture and RF PCB layout techniques
• Background in power amplifier linearization techniques such as digital and analog predistortion
• Background in power amplifier efficiency improvement techniques such as Doherty and envelope tracking
• Experience developing linear and non-linear ADS models and building simulations using linear and harmonic balance simulators.
• Working knowledge of RF and power amplifier measurement equipment
• Knowledge of typical TDD/FDD transmitter architectures
• Strong specification and documentation skills
• Strong communication and presentation skills

Compensation:  40 - 50 per hour