1 Channel 2.92mm Rotary Joint DC-30GHz High Power Supplier
1 Product Overview
The YZRF-2.92-30G-01 is a single-channel 2.92mm coaxial RF rotary joint designed for Ku/K-band radar, satellite communications and mmWave test equipment.
It is mounted at the rotating center of an antenna or turntable to transfer RF signals from the stationary side (feed / transceiver chain) to the rotating upper structure (antenna / positioner) with 360-degree continuous rotation.
With a 2.92mm (K-type) 50 Ohm interface and 316L stainless steel housing of only Phi 25.4 x 22.45 mm, it covers DC to 30 GHz in one compact channel, eliminating cable twisting, signal interruption and phase drift under continuous rotation.
2 Key Features
- ● Wideband single-channel design — DC to 30 GHz via one 2.92mm channel covering Ku and K bands.
- ● Low insertion loss — 0.4 / 0.8 / 1.0 dB across DC-8 / 8-18 / 18-30 GHz segments.
- ● Low VSWR, high stability — 1.35 / 1.7 / 1.8 across the three bands.
- ● High power handling — up to 100W average at low frequency (DC-2 GHz).
- ● Ultra-long mechanical life — at least 10 million revolutions at 60 RPM.
- ● Wide-temperature rugged design — -40 to +70 Celsius, IP51, GJB qualified.
3 Technical Specifications
| Parameter | Specification |
|---|---|
| Model | YZRF-2.92-30G-01 (316L) |
| Channel | 1 |
| Interface | 2.92-K (50 Ohm) |
| Frequency Range | DC ~ 30 GHz |
| Insertion Loss | 0.4 dB @ DC~8GHz; 0.8 dB @ 8~18GHz; 1.0 dB @ 18~30GHz |
| IL Variation | 0.05 / 0.1 / 0.15 dB |
| VSWR | 1.35 / 1.7 / 1.8 |
| VSWR Variation | 0.1 / 0.15 / 0.25 |
| Average Power | 100W @ DC~2GHz; 50W @ 2~8GHz; 25W @ 8~15GHz; 20W @ 15~18GHz |
| Peak Power | 100W @ DC~18GHz |
| Impedance | 50 Ohm |
| Starting Torque | under 0.3 N.m |
| Running Torque | under 0.1 N.m |
| Dimensions | Phi 25.4 x 22.45 mm |
| Speed | 60 RPM |
| Service Life | at least 10,000,000 revolutions |
| Operating Temperature | -40 to +70 Celsius |
| Storage Temperature | -55 to +85 Celsius |
| Housing Material | 316L Stainless Steel |
| Protection Class | IP51 |
| Environmental | GJB 150.9A / 150.16A / 150.18A (tracked vehicle) |
4 Application In Ku/K-Band Radar, SATCOM & Test
In a tracking antenna or test turntable, this rotary joint works as the RF bridge:
- Stationary side (stator): connected to the BUC/LNB or VNA receiver chain
- Rotating side (rotor): connected to the antenna feed, tracking mount or positioner
Transmitted signals include wideband RF carrier for Ku/K-band satcom and radar links, and mmWave test signals for antenna pattern measurement. Without a dedicated rotary joint, the coax cable would twist and break after a few rotations, causing link loss or measurement drift.
5 Why Choose Us
High-power version for radar transmitters, up to 100W average at low frequency.
10-million-revolution life, double the standard, for 24/7 duty.
Tracked-vehicle GJB qualification, surviving heavy vibration and shock.
Every unit ships with a factory swept test report.
