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Research on an Electromagnetic Compatibility Test Method for Connected Automotive Communication Antennas.
Ming Ye1, Wenxia Wang1, Jin Jia1
1Key Laboratory of Advanced Manufacturing Technology for Automobile Parts, Ministry of Education, Chongqing University of Technology, Chongqing 400054, China.
Sensors (Basel, Switzerland)
|April 28, 2025
Summary
This study introduces a method to assess wireless communication quality for connected vehicles by analyzing antenna gain coupling. This approach optimizes antenna placement in darkrooms, reducing costs and ensuring reliable automotive over-the-air (OTA) antenna performance testing.
Area of Science:
- Electromagnetic compatibility
- Wireless communication systems
- Antenna theory
Background:
- Electromagnetic interference (EMI) poses a significant challenge in the darkroom testing of connected vehicle communication systems.
- Accurate assessment of wireless communication quality between antennas is crucial for reliable automotive OTA antenna performance.
- Existing methods may incur high costs or provide unreliable data for antenna performance evaluation.
Purpose of the Study:
- To propose a novel research method for evaluating wireless communication quality between antennas using gain coupling.
- To analyze electromagnetic compatibility (EMC) aspects including far-field and near-field radiation patterns and radiation coupling degree.
- To determine an optimal transmitting antenna arrangement scheme for darkroom testing of automotive antennas.
Main Methods:
- Established a 3D simulation model of vehicle antennas and external transmitting antennas.
- Analyzed electromagnetic compatibility using gain coupling, far-field radiation patterns, near-field radiation patterns, and radiation coupling degree.
- Utilized simulation data to determine the optimal transmitting antenna arrangement scheme within a darkroom environment.
Main Results:
- The proposed gain coupling method effectively evaluates wireless communication quality between antennas.
- The 3D simulation model provided insights into electromagnetic compatibility and radiation characteristics.
- An optimized transmitting antenna arrangement scheme was determined based on simulation data.
Conclusions:
- The developed method effectively reduces testing costs for automotive OTA antennas.
- The approach provides reliable data for evaluating antenna performance in connected vehicle communication systems.
- Optimized antenna placement based on gain coupling analysis enhances darkroom testing efficiency and accuracy.
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