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Apple Cellular RF Transmitter Systems Engineer in Boston, Massachusetts

Cellular RF Transmitter Systems Engineer

Boston,Massachusetts,United States


  • We would like you to have relevant experience in RF, including cellular transmit architectures, or PhD degree with previous work on cellular RF topics.

  • You have initial expertise in transmitter concepts and procedures for cellular systems like power control, digital predistortion, Crest-factor reduction, TX impairment corrections (e.g., IQ imbalance and PA supply voltage modulation.

  • You have basic knowledge in analyzing transmit chains from RF-baseband interface to antenna and in translating top level requirements into specification items for transceiver building blocks and RF components (e.g., PA, filter, switches).

  • Basic knowledge of Cellular Radio/3GPP Standards (GSM, UMTS, LTE, LTE-A, 5G NR) which includes RF aspects as well as system use cases and TX waveforms.

  • Good knowledge of TX performance metrics like ACLR, EVM and spectrum masks is a must.

  • Expertise and experience in 5G NR FR2 are a plus.

  • Background in digital signal processing is a plus.

  • This role requires strong analytical thinking and the ability to collaborate and communicate in multi-cultural global teams.


In this role, you will be part of an industrial-leading RF Transmitter Systems Engineering team. You will work closely with other architecture- and system engineering teams, RF design teams, SW teams and suppliers to assess, define and drive TX architectures and TX concepts with focus on leading-edge performance and uncompromised quality as baseline for differentiating products. Your daily work includes the following tasks: • Translate system level- and performance requirements into requirements for the TX system including the breakdown to block level and component level. • Analyze the transmit chain by means of simulations (e.g., MATLAB, ADS) and link budget analysis. • Identify and analyze critical requirements and provide deep dive assessments with respect to critical metric impact, timeline, and risks. • Solve complex and interdisciplinary problems that are related to the transmit system. • Drive the alignment of requirements, design targets and design trade-offs with other teams like HW design and SW engineering. • Work with vendors, technology suppliers and multi-functional teams to optimize cellular system performance. • Provide specifications as input for the HW and SW development.

Education & Experience

BSEE or MSEE is required. We would prefer a Ph.D. in Electrical Engineering or equivalent.

Additional Requirements

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