Radio Frequency Engineer

4 days ago


Delhi, India L&T Semiconductor Technologies Full time
Title: RF Engineer / Senior Engineer

Exp: 4 - 12 yrs

Work location: Bangalore / Chennai

Job Description:

RF System Architecture Design

- Define system specifications in collaboration with system engineers, considering application needs (e.g., 5G, Wi-Fi, Bluetooth).- Select RF components (amplifiers, mixers, filters) based on system specs (frequency, bandwidth, power, efficiency).- Design signal paths for smooth integration between transmitter, receiver, and antenna systems.- Ensure integration with subsystems like baseband, digital processing, and power supply.

Architecture & Design of RF Subsystems

- Design transmitters and receivers, focusing on amplification, filtering, and frequency conversion.- Develop RF front-end subsystems (LNAs, PAs, filters) for high-quality signal transmission.

RF Performance Analysis & Optimization

- Perform link budget calculations to ensure desired range and reliability.- Optimize signal integrity, ensuring low BER and minimal interference.- Focus on power efficiency for battery-powered devices.

Simulation & Prototyping

- Use tools like MATLAB, Simulink, and ADS for system-level and circuit simulations.- Develop and test prototypes, adjusting designs as needed to meet requirements.

Design for Integration & Miniaturization

- Design compact RF modules fitting device constraints (e.g., mobile phones, IoT devices).- Integrate multiple RF functions (Wi-Fi, Bluetooth, GPS) into single modules or chips.- For SoC designs, integrate RF functionality directly onto the chip for size, power, and performance optimization.

Noise & Interference Management

- Mitigate interference by designing appropriate filters and shielding.- Ensure compliance with EMC standards and minimize noise coupling.

Thermal & Mechanical Design

- Manage thermal aspects to prevent overheating of power components.- Design enclosures considering antenna placement and integration with other subsystems.

Compliance & Regulatory Requirements

- Ensure compliance with regulatory standards (e.g., FCC, CE, ITU).- Prepare for certification testing, including SAR and EMI testing.

Collaboration with Other Engineering Teams

- Work with digital, baseband, software, and hardware teams for seamless RF module integration.- Collaborate with test engineers for debugging and tuning based on real-world performance.

Documentation & Reporting

- Document RF architecture with detailed designs, specifications, and performance data.- Develop test plans and reports for validation and regulatory compliance.

Tools and Skills

- RF Tools: MATLAB, Simulink, ADS, Microwave Office, CST, HFSS.- Testing Equipment: Spectrum analyzers, signal generators, network analyzers.- Expertise: Wireless standards (GSM, CDMA, LTE, 5G, Wi-Fi), antenna design.

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