Consultant in Power Amplifier Design
Afry AB / Elektronikjobb / Solna
2025-05-14
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AFRY is a European leader in engineering, design, and advisory services, with a global reach. We accelerate the transition towards a sustainable society. We are 19,000 devoted experts in infrastructure, industry, energy, and digitalisation, creating sustainable solutions for generations to come.
Job Description
About the Role: We are seeking a skilled engineer for a client-specific assignment, focusing on the design and verification of high-power amplifiers (60-100W per branch). This role involves ensuring that amplifiers meet the required output power while maintaining optimal performance, efficiency, and thermal management. You will conduct rigorous testing to verify amplifier performance under various operational conditions, ensuring optimal signal integrity and power efficiency. Your work will include debugging amplifiers when parameters do not meet specifications, ensuring the reliability and robustness of transistors and power amplifiers. Additionally, you will apply thermal management concepts to transistors and components, understand linearization techniques, and collaborate with PAX mechanics. Comprehensive radio performance testing will also be part of your responsibilities to ensure product quality.
Qualifications
Ideal candidates will have:
Basic RF knowledge
Experience in RF radio labs and with relevant instruments
Experience in uplink and downlink RF analogue systemizations
Understanding of PA basic architectures (Classes AB, B, F, Doherty, etc.)
Familiarity with PA parameters: Psat, Gain, AMPM, Eff, ACLR, OBUE, CW/modulated/xTone measurements, baseband-linearity concepts
Ability to debug a PA when parameters are not meeting specs
Reliability/Robustness of transistors/PAs
Thermal concepts for transistors/PAs (and components)
Understanding of linearization concepts
Knowledge of GaN and its challenges: trapping, drifts, variabilities
Knowledge of PAX mechanics (coins, preforms, building practice, etc.)
Basic physics concepts of transistors
Ability to measure the parameters mentioned above
Understanding of link/power budgets
Measurement and instrument knowledge
Performing comprehensive radio performance tests to ensure product quality
Additional Information
Location: Stockholm, Sweden
Start: Immediately, considering notice period
Location: Stockholm
Salary: By agreement. Type of employment: Full-time
Kontaktperson för frågor:
Maja Lindqvist
Recruitment partner
maja.lindqvist@afry.com At AFRY, we engineer change in everything we do. Change happens when brave ideas come together. When we collaborate, innovate technology, and embrace challenging points of view. That's how we're making future. We are actively looking for qualified candidates to join our inclusive and diverse teams across the globe. Join us in accelerating the transition towards a sustainable future.
Ersättning Månadslön
Så ansöker du Sista dag att ansöka är 2025-06-13
Klicka på denna länk för att göra din ansökan Arbetsgivarens referens Arbetsgivarens referens för detta jobb är "REF12077Y".
Omfattning Detta är ett heltidsjobb.
Arbetsgivare Afry AB (org.nr 556120-6474)
Arbetsplats Afry
Jobbnummer 9337900