RF rotary joint HRD080-2-SMA-4.5-12

HRD080-2-SMA-4.5-12 RF rotary joints are designed according to the skin effect of high frequency signals and the structure of coaxial cable. Support single or multi-channels to transfer DC~18GHz RF signals, also can be integrated electric and other signals. HF rotary joint high frequency signal use 50Ω characteristic impedance RF coaxial structure.


Channel 1Channel 2
Frequency RangeDC-4.5GHZDC-4.5GHZNo. of Rings12 rings
Standing Wave Ratio1.50:12.00:1Rated Current8rings 10A/ring; 4rings 3A/ring
Standing Wave Ratio Fluctuation0.050.25Rated Voltage0-440VAC
Max Insertion Loss0.50dB1.0dBInsulation Resistance≥1000MΩ/500VDC
Insertion Fluctuation0.05dB0.25dB1-8Dielectric Strength1200VAC@50HZ,60s
Average Power5W5W9-12Dielectric Strength800VAC@50HZ,60s
Isolation<―40dB―><―40dB―>Dynamic Resistance≤10mΩ
Contact MaterialPrecious metals
Structure MaterialAluminium alloy
Operating Speed0-50rpm
Working Temperature-40 to 70℃
Protection LevelIP65

Typical drawing

electric rf slipring draw


◆ Frequency: DC~18GHz

◆ Can be combine with power and signal transmission

◆ Low insertion loss and voltage standing wave ratio

◆ Support 1 or 2 RF channels

Model designation

name of rf slip ring