The TWC 4013 Tube Wave Coupler complies with the TWC method specified in ISO 11452-4. Based on the directional coupler principle, it couples the TEM wave in the tubular waveguide into the test cable.
The TWC 4013 Tube Wave Coupler complies with the TWC method specified in ISO 11452-4. Based on the directional coupler principle, it couples the TEM wave in the tubular waveguide into the test cable. It features a high coupling frequency and low insertion loss.
IL Test Curve:

Note: This curve has been corrected for the fixture’s insertion loss.
TWC System Setup:

① RF Signal Generator
② Power Amplifier
③ Power Meter
④ Power Probe
⑤ Directional Coupler
⑥ Coaxial Load TF80
⑦ Tube Wave Coupler Calibration Fixture TWCF 55
⑧ Tube Wave Coupler TWC 4013
⑨ Attenuatorat150-6db-6G-NM-NF-B
> Wide frequency range from 400 MHz to 3 GHz with stable performance
> Low insertion loss reduces the required RF amplifier power to meet standard test levels
> Open-close structure for easy and fast operation