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Home > Knowledge > Content

Coax Rotary Joint (High frequency slip ring)

ByTune Electronics Co.,Ltd | Updated: Oct 12, 2016

Basic Info

Model NO.:CRJ Series--4.5GHz or higherCertification:ISO
Package:Carton BoxSpecification:CE, FCC,RoHs
Trademark: ByTune ElectronicsOrigin:Shenzhen, China

Coax rotary joint also could be called high frequency slip ring or connector, which is used for continuous rotation device to transmit hi-frequency signal between fix part and rotary part. This kind of rotary joint can be an element which installed on the cable or instrument as transmitting or breaking the line of electrical connections. The max frequency range reach up to 40GHz (or higher ) analog signal and high speed digital signal.
If you have specific customized requirement, please feel free to consult us so that our sales engineer could recommend the most suitable product to you for you reference.


Small size & light weight
Channels could be up to 18
Frequency range can reach to 40GHz or higher
Low attenuation loss and low wear
Can not be used in high work speed application
Longer life time & maintenance free


Electrical part combines with coax rotary joint
Support broadband signal and SDI signal
Cable length and size
50Ohm;and 75Ohm; impedance are optional


Radar & antenna
Satellite communication system
Analog high frequency electronic system
CCTV & video monitoring device
Military system equipment

Ptoduct ModelBTRF-01BTRF-02BTRF-03
Channel1 channel

Outer Diamter15mm25.4mm
Frequency Range0-3GHz0-18GHz0-26.5GHz
Specific Impedance50Ohm;

Average Loading Power100W @ 2GHz
60W @ 3GHz
200W @ 1GHz
500W @ 1GHz
100W @ 15GHz
40W @ 15GHz
30W @ 18GHz
200W @ 1GHz
40W @ 15GHz
25W @ 26.5GHz
Peak Power ( Max ) 3kW Max
Contact MaterialsPrecious metal

Insertion Loss( Max )<1.5dB @ 3GHz0.25dB @ 0-10GHz 
0.30dB @ 10-18GHz
0.30dB @ 0-10GHz 
0.35dB @ 10-18GHz
0.70dB @ 18-26.5GHz
Insertion Loss WOW ( Max )0.1dB Max0.05dB 0.1dB @ 0-18GHz 
0.2dB @ 18-26.5GHz
VSWR ( Max )1.45dB Max1.3dB @ 0-10GHz 
1.4dB @ 10-18GHz 
1.3dB @ 0-10GHz 
1.4dB @ 10-18GHz 
1.7dB @ 18-26.5GHz
VSWR-WOW ( Max )0.1dB Max0.05dB0.05dB @ 0-18GHz
0.10 dB @ 18-26.5GHz
Phase WOW ( Max )1 degree1 degree1 degree @ 0-10GHz 
1.5 degree @ 10-18GHz
2.0 degree @ 18-26.5GHz
Work Temperature-20C-+60C-40C-+70C
Work Humidity-20C-+60C95%RH or higher
Work Speed60RPM Max500RPM Max200RPM Max
Starting Torque ( Max ) 0.05Nm @ room temperature
Housing MaterialBrass/ Zinc platingCopper alloy
Protection IP54IP40

ByTune Electronics Co.,Ltd