RF Systems Engineer
- Jan 29
- 2 min read
Location: Burbank, CA |
Job Description:
ADRF (Advanced RF Technologies, Inc.) is the leading provider of in-building wireless solutions that ensure seamless connectivity in commercial and public structures. We are seeking an experienced RF Systems Engineer to support the Product Engineering (PE) team in designing high-performance wireless systems that meet the stringent requirements of modern 5G networks, including Open RAN (O-RAN) architectures. The ideal candidate will be fluent in both Korean and English and bridge the gap between RF hardware and digital processing, utilizing knowledge of 3GPP standards and System-on-Chip (SoC) technologies.
Key Responsibilities:
System Architecture Design: Support the PE team to define and design the overall system architecture for 5G DAS and Repeaters, including RF chain planning, Link Budget analysis, and Cascade analysis (Gain, NF, IP3).
RF & Digital Integration: Support the PE team in the integration of RF front-end modules with digital processing units, focusing on AMD (Xilinx) MPSoC and RFSoC platforms.
3GPP Compliance: Ensure all designs meet 3GPP LTE/5G NR specifications, specifically regarding EVM, ACLR, and spectrum emission masks.
System Verification: Conduct system verification using high-end RF instruments (Spectrum Analyzers, Vector Network Analyzers, Signal Generators).
Qualifications (Mandatory):
Education: Bachelor’s degree in Electrical Engineering, Telecommunications, or a related field.
Experience: Minimum of 2 years of hands-on experience in RF system design and development for wireless infrastructure.
RF Domain Knowledge: Strong understanding of RF transceiver architectures (RF Direct, Zero-IF, Super-Heterodyne) and passive/active components.
Simulation Skills: Proficiency in RF/System simulation tools (Keysight ADS, SystemVue, MATLAB Simulink).
Standards: Strong knowledge of 3GPP specifications (LTE, 5G NR FR1/FR2).
Instrumentation: Proficiency in operating RF test equipment (Keysight/Rohde & Schwarz).
Language: Korean, English.
Qualifications (Preferred):
SoC Proficiency: Experience with AMD Xilinx Zynq UltraScale+ MPSoC or RFSoCdevices.
DFE Proficiency: Experience with implementing or verifying DFE on RFSoC platforms.
O-RAN Knowledge: Experience with O-RAN system development, specifically familiarity with Split 7.2x architecture and eCPRI interfaces.
mmWave Proficiency: Experience with millimeter-wave (mmWave) system design and beamforming technologies.
Job Type: Full-time
Advanced RF Technologies, Inc. (ADRF) is an established, leading provider of in-building equipment and services that improve wireless coverage and capacity for the largest service providers and enterprise customers around the world. ADRF’s product suite encompasses active systems, including RF and optical repeaters, digital distributed antenna systems, and passive components and antennas. ADRF offers complete, custom-designed turnkey solutions for wireless carriers, enterprise and public safety entities. We leverage our substantial wireless industry experience and in-building expertise to give our customers a seamless experience. ADRF is proud to be certified as a Minority Business Enterprise (MBE) and a Women’s Business Enterprise (WBE).