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Home Products Tubular Wave Coupler (TWC) RF Interference Test System
Tubular Wave Coupler (TWC) RF Interference Test System
Tubular Wave Coupler (TWC) RF Interference Test System

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Tubular Wave Coupler (TWC) RF Interference Test System

Product No: LIS-TWC-3G50W

  • Specifications

  • LIS-TWC-3G50W Tubular Wave Coupler (TWC) RF Interference Test System is specifically designed for automotive EMC RF immunity testing using the TWC method. It fully complies with automotive EMC standards such as ISO 11452-4, GB/T 33014.4 and SAE J1113-4. The system is primarily used for conducting TWC-based RF conducted and radiated immunity tests (frequency range: 400 MHz to 3 GHz) on various automotive components and electronic devices, making it suitable for R&D pre-compliance testing, product finalization, and third-party laboratory testing.

    Featuring an integrated architecture, the LIS-TWC-3G50W incorporates a signal synthesizer, a three-channel high-precision power meter, an RF power amplifier, and a dual directional coupler. It supports multiple signal modes—including CW, AM, PM, and unmodulated signals—as well as both average and pulse detection modes, accommodating the requirements of both civilian automotive testing and military pulse testing scenarios. The system includes a comprehensive library of standard tests, supports the loading of standard files and the customization of user-defined test libraries, and features a rapid “one-click” calibration function that completes full-frequency-point calibration in under one minute.

    Note: For Bulk Current Injection (BCI) testing method in the 100 kHz to 400 MHz range, please refer to the LSBCI-40.

    Standards:

    Standards No. Standards Name
    ISO 11452-4:2020 Road vehicles — Component test methods for electrical disturbances from narrowband radiated electromagnetic energy — Part 4: Tubular Wave Coupler (TWC)
    SAE J1113/4-2020 SAE Standard — Electromagnetic Compatibility Measurement Procedures and Limits for Components and Subsystems — Part 4: Tubular Wave Coupler (TWC)
    GB/T 33014.4-2016 道路车辆 电气 / 电子部件对窄带辐射电磁能的抗扰性试验方法 第 4 部分：管状波射频干扰（TWC）

    Specifications:

    Signal Generator
    Frequency Range 9kHz~3GHz
    Frequency Resolution 1Hz
    Frequency Temperature Stability ±0.5ppm
    Harmonics ≤-30dBc
    Anharmonic ≤-50dBc
    Output Power Range -120dBm~0dBm
    Amplitude Modulation Frequency rangeModulation frequency: 10 Hz~1 MHz; modulation depth: 1%~99%; internal/external modulation.
    Pulse Modulation Modulation frequency: 1 Hz~10 kHz; Duty cycle: 1%~99%
    Power Meter*3
    Frequency Range 1MHz~4GHz
    Input Range -70 dBm~+10 dBm
    Accuracy ±0.5 dB
    Sampling Mode Average, Integration, Pulse
    Input Interface Front-panel SMA, rear-panel N-type connector
    Power Amplifier
    Input Power 0dBm (Max)
    Frequency Range 400MHz~3GHz
    Output Power 50W
    Output Interface Rear panel N-type connector
    Dual Directional Coupler
    Frequency Range 400MHz~3GHz
    Decay Ratio 50dB
    Maximum Input Power 100W
    General Parameters
    Attachments Included Attenuator: Frequency range DC~3 GHz, N-type connector. High-voltage load: 50 Ω
    Communication Interface LAN、USB、RS485
    Control System 10.1-inch Android capacitive touchscreen display (Chinese/English) + supports remote control via PC software
    Operating Environment Temperature：10℃~40℃，Humidity：30%~70%
    Power Supply AC：100~250V@50Hz/60Hz
    Dimension 4U/19″ Standard Chamber
    Mandatory configurations:
    LIS-AN50A Artificial Mains Network: Test voltage DC 1000V/AC 270V, test current 50A (LIS-AN100A and LIS-AN200A models available), N-type connectors, impedance 50μH + 5Ω || 50Ω.
    LIS-TWC180 TWC probe: frequency range 400 MHz~3 GHz; maximum attenuation 20 dB; N-type connector.
    LIS-FTWC-180 TWC probe fixture: frequency range DC~3 GHz, VSWR 2:1.
    Optional configurations:
    LIS-DESK-TWC TWC Test Table: Table dimensions 2*1*0.9 m; reference ground plane 2*1 m (2 mm thick), brass material; coupling plane grounded at 300 mm intervals.
    SDR-4000B Electromagnetic shielding cabinet: Internal dimensions 4000*1200*1800 mm (can be designed according to customer requirements; click here for more sizes).
    TWC Test Setup according to ISO 11452-4 Figure 3

    TWC Test Setup according to ISO 11452-4 Figure 3

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