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RF Engineer

San Francisco Metro Area, CA

Posted: 01/25/2019 Job Type: Engineering Job Number: JN -092018-22677
Perform RF, microwave and antenna characterization for the company's hardware devices
Design and build RF and Microwave characterization fixtures e.g. de-embedding structures for feed lines to small devices
Develop custom phantoms emulating biological tissue effects impactful to devices
Perform antenna gain measurements using anechoic chamber
Work with product and UX teams design environment emulating for use cases of interest to evaluate antenna performance
Wireless systems characterization and interpretation e.g. measuring and analyzing BER vs data rate, constellation diagrams.
Design of experiments for and execution of electromagnetic-thermal characterization

Top 3 daily responsibilities
Antenna (e.g. wearable BLE) and wireless power link characterization often using anechoic chamber
Designing and prototyping de-embedding structures for characterization of electrically small antennas and wireless power links
Designing characterization environments for wearable antennas e.g. sourcing or creating tissue phantoms, modeling obstacles and multipath based on input from user experience group

Must Have:
BS in Electrical Engineering required, MS preferred.
BS and 5+ years of relevant experience or MS and 2+ years of relevant experience
Expertise and proficiency in using vector network analysers, spectrum analyzers and anechoic chambers
Strong understanding of transmission line theory and practice, good experience in prototyping especially in feeds to small radiators
Strong understanding of EM radiation fundamentals, performance characteristics of common antenna types and experience in antenna characterization

Nice to Have:
Experience with wireless systems characterization i.e. end-to-end data e.g. measuring and analyzing BER vs data rate, constellation diagram
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