Radio Frequency Engineer

3 weeks ago

Bengaluru, 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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