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Scientist, Space Systems - RF Design, Frequency Conversion, and LO Synthesis

Scientist, Space Systems - RF Design, Frequency Conversion, and LO Synthesis

L3 TechnologiesPalm Bay, FL, United States
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L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris Technologies is the Trusted Disruptor in the defense industry. With customers' mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title : Scientist, Space Systems - RF Design, Frequency Conversion and LO Synthesis

Job Code : 24692

Job Location : Palm Bay, FL

Job Description :

The L3Harris Space and Airborne Systems segment is seeking an exceptional RF Engineer specializing in frequency conversion and LO synthesis to lead sophisticated RF / Microwave design activities, leveraging their extensive expertise in RF architecture to fulfill our customers' complex missions. This pivotal role involves optimizing RF, IF and LO performance through research, design, development, and verification, while leading customer programs, advancing IRAD projects, conducting technical trade studies, authoring detailed proposals, and providing mentorship throughout the engineering organization. Success will be achieved through the utilization of a diverse array of advanced RF simulation tools and laboratory equipment to create innovative hardware solutions while ensuring our commitment to design excellence.

The ideal candidate should be a subject matter expert in RF design for frequency conversion and LO synthesis, with an entrepreneurial background, capable of collaborating with engineering technical experts, business development, and senior management. They will address customer and mission needs through technical analysis, presentations, white papers, proposals, and strategic guidance, while demonstrating strong communication and interpersonal skills within a large engineering enterprise and with external partners. Additionally, they will assess technical risks, the political climate, budget, and schedule limitations to build trust in the Space Systems sector and L3Harris.

Essential Functions :

  • Lead complex RF Design activities for frequency conversion and LO synthesis, including research, architecture, design, analysis, and verification, to advance the performance of RF system architecture, including RF payloads, modules and circuit card assemblies.
  • Drive multi-discipline technical teams through all phases of program milestones (pursuit, proposals, SRR, SDR, PDR, CDR, etc.).
  • Research industry trends to develop roadmaps utilizing the latest technologies to increase RF, IF and LO hardware capabilities while simultaneously reducing size, weight, power and cost.
  • Lead Internal Research and Design (IRAD) initiatives and conduct technical trade studies to drive tactical and strategic decisions for program leadership.
  • Generate white papers, proposals, and Basis of Estimates (BOEs), to ensure success in terms of technical performance, cost and schedule.
  • Collaborate with customers and program leadership to align RF performance requirements with internal stakeholders.
  • Provide mentorship, guidance, and leadership to other engineers.

Qualifications :

  • Bachelor's Degree and a minimum of 12 years of prior relevant experience ( Accredited course of study in Electrical Engineering, Physics, Mathematics, Computer Science, or another relevant STEM field.). Graduate Degree and a minimum of 10 years of prior related experience. In lieu of a degree, minimum of 16 years of prior related experience. Experience with best practices for project engineering and program execution
  • 12+ years of experience with RF design, frequency conversion, and LO synthesis including :
  • RF transmitter up-conversion and receiver down-conversion utilizing active and passive RF mixers, amplifiers, filters, attenuators, splitters, couplers, etc. for different frequency conversion techniques including superheterodyne and direct conversion (zero-IF).

  • Analysis for RF, IF and LO performance including conversion loss, noise figure, dynamic range, 1 dB compression, isolation, LO leakage, LO drive, group delay, I / Q imbalance, output spectrum purity (phase noise, RMS tracking jitter, mixing products, spurious emissions, intermodulation distortion (IMD), IP3, IP2), PLL tuning (loop stability, bandwidth, gain margin, phase margin), frequency agility and timing (lock time, settling time, transient response, damping behavior and steady-state phase error).
  • Local Oscillator (LO) synthesis with Phase-Locked Loops (PLL), Phase / Frequency Detectors (PFD), Voltage Controlled Oscillators (VCOs), charge Pumps, crystal oscillators, Direct Digital Synthesizers (DDS), etc.
  • RF and LO stability analysis taking into

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    Scientist • Palm Bay, FL, United States