射频/天线高级开发工程师 20k-30k

Job description
1- System Concept & Performance Architecture
- Design, model, and perform trade-off analysis for new radar sensor concepts (e.g., imaging radar, MIMO configurations, satellite architectures) to assess raw data performance and feasibility.
- Decompose high-level sensor KPIs into specific RF performance metrics. Calculate and budget for key parameters including system noise figure (NF), output power (EIRP), phase noise, linearity (IIP3), and channel-to-channel isolation.
- Architect the overall radar cycle timing and structure, defining the optimal sequence and configuration of chirps/ramps for RF transmission, reception, and front-end data preprocessing to support various operational modes (e.g., short-range, long-range).
2- Antenna & RF Front-End Design
- Lead the conceptual design of antenna arrangements (e.g., virtual/physical arrays, sparse arrays) and define radiation pattern requirements (e.g., field of view, gain, sidelobe levels, cross-polarization discrimination) based on system performance targets.
- Define critical specifications for RF front-end components, including power amplifiers (PAs), low-noise amplifiers (LNAs), mixers, phase-locked loops (PLLs), and filters. Analyze and budget for performance impacts like ripple and group delay.
- Collaborate with the hardware team on the physical integration of the antenna and RF circuitry, providing expert guidance on layout, substrate selection, and impedance matching to minimize losses and ensure signal integrity.
3- Waveform Design & Signal Processing
- Design and select optimal RF modulation schemes (e.g., advanced FMCW, PMCW, hybrid waveforms) and define the corresponding baseband processing methods required to extract range, velocity, and angle information.
- Define the necessary capabilities for real-time signal preprocessing. Specify requirements for hardware accelerators (e.g., FFT engines, data formatters, digital filtering) and assess the suitability of proposed implementations from the chip supplier.
- Develop robust concepts for the detection and mitigation of radar-to-radar interference and general RF interference. Define requirements for both hardware (e.g., filtering, blanking) and software (e.g., algorithmic suppression) solutions.
4- System Verification & RF Technical Leadership
- Design concepts for built-in-self-test (BIST) and real-time hardware monitoring to ensure the integrity and calibration of the RF signal chain throughout the product lifecycle, in compliance with automotive safety standards (ASIL).
- Act as the primary RF technical interface with the new radar chip supplier, driving technical discussions, challenging design choices, and ensuring their roadmap aligns with our performance requirements.
- Serve as the go-to expert within the organization for all technical questions regarding the functionalities, performance limits, and capabilities of our radar sensors, providing guidance to application, validation, and management teams.

Job requirement
1- Master’s or Ph.D. in Electrical Engineering, Physics, or a related field with a focus on RF, Electromagnetics, or Signal Processing.
2- 10+ years of professional experience in RF systems design, with a minimum of 5 years specifically in the development of mm Wave automotive radar (77-81 GHz).
3- Expert-level understanding of radar system principles, including FMCW/MIMO radar theory, antenna array theory, and the complete link budget cascade from transmit power to signal-to-noise ratio (SNR)- Demonstrated experience in designing and simulating antenna arrays using industry-standard tools (e.g., CST, HFSS, Ansys).
4- Proficiency in system-level modeling and analysis using MATLAB or Python.
5- Experience leading the architecture of a radar sensor from concept to production.
6- In-depth experience working directly with major radar chip suppliers (e.g., NXP, TI, Infineon, Analog Devices).
7- Strong knowledge of radar signal processing algorithms (FFT, windowing, CFAR, DoA estimation).
8- Familiarity with automotive development processes (ASPICE) and functional safety standards (ISO 26262).
9- Experience with high-frequency PCB design principles and measurement techniques using lab equipment (VNA, Spectrum Analyzer, Power Meter).
10- Project management, PLC experience, Intellectual Property
11- Fluent English