Definition:
The RF field interference immunity testing system is a testing device that evaluates the performance stability of electronic devices (such as communication, medical, and automotive electronics) under electromagnetic interference by simulating the RF electromagnetic field interference environment.
Application scenarios
consumer electronicsVerification of anti-interference ability for devices such as mobile phones, computers, and home appliances.
Automotive ElectronicsThe reliability of in vehicle electronic systems (such as ADAS, infotainment systems) in complex electromagnetic environments.
medical equipmentEnsure that medical equipment operates normally under strong radio frequency interference.
industrial control：PLC、 The anti-interference performance of sensors and other devices in industrial environments.
Precautions
Calibration and VerificationRegularly calibrate antennas, field strength probes, and power amplifiers to ensure testing accuracy.
environmental controlThe shielding room needs to meet the background noise requirements (usually below 6 dB of the test field strength).
Equipment placementThe tested equipment should simulate the actual usage state (such as cable layout and grounding method).
Test parameter settingsSelect frequency range, field strength level, and modulation method based on the product application scenario.
safety protectionHigh power RF may cause harm to personnel, and operating procedures must be followed.
Common Problems and Solutions
Uneven field strengthCheck the antenna position, darkroom absorbing materials, or adjust the calibration method.
Tested equipment failureAnalyze failure frequency points and optimize circuit design (such as adding filtering and shielding measures).
System interferenceEnsure the isolation performance of the shielding room and investigate external signal leaks.