RF rotary joint HRD54-1-SMA-18-11

HRD54-1-SMA-18-11 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.


No. of Channel1 channelNo. of Rings11 rings
Frequency RangeDC to 18GHZRated Current4rings 2A/ring; 7rings 2A/ring
VSWR≤1.4Rated Voltage0-380VAC
VSWR WOW0.05Insulation Resistance≥500MΩ/500VDC
Insertion Loss≤0.3 dBDielectric Strength500VAC@50HZ,60s
Insertion Loss WOW≤0.05dBDynamic Resistance≤70mΩ
Isolation≥50dBContact MaterialPrecious metals
Maximum Speed0-300 rpmStructure MaterialAluminium alloy
Working Temperature-40 to 80℃Operating Speed0-300rpm
Working Temperature-40 to 80℃
Protection LevelIP54

Typical drawing

draw RF slip ring joint


◆ 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