18 GHz 034 Stainless Steel Cryogenic RF Coaxial Cable G08E-SS
P/N: G08E-SS
- For low-thermal-load cryogenic RF routing
- Stainless steel conductors reduce heat conduction
- 0.86 mm OD supports compact cold-stage wiring
- Suited to quantum input and control lines
- Rated to 18 GHz for cable selection
Engineering Note
The G08E-SS is a 0.86 mm OD stainless steel cryogenic RF coaxial cable designed for low-thermal-load routing where reduced heat conduction into cold stages is a key design requirement. Its construction uses a stainless steel inner conductor, PTFE dielectric, and stainless steel outer conductor, supporting dilution refrigerator interconnects, cryogenic RF routing between temperature stages, and quantum system input or control lines. The 18 GHz operating frequency is intended for preliminary cable selection; final assembly performance may depend on connector interface, cable length, routing form, thermal anchoring, and operating temperature stages.
Technical Specifications
| Cable Model | G08E-SS |
|---|---|
| Product Type | Stainless Steel Cryogenic RF Coaxial Cable |
| Material Family | SS |
| Outer Diameter | 0.86 mm |
| Operating Frequency | 18 GHz |
| Cable-Level Cutoff Frequency | 154 GHz |
| Characteristic Impedance | 50 ± 3.0 Ω |
| Shielding Effectiveness | >165 dB |
| Dielectric Withstand Voltage | 500 V DC |
| Velocity of Propagation | 70% |
| Min. Bending Radius, Static | 3.20 mm |
| Weight | 0.0033 kg/m |
| Temperature Range | -268°C to 150°C |
| 4K Thermal Conductivity | 7.4 ×10⁻⁶ W·cm/K |
| Inner Conductor | Stainless steel, 0.203 mm [0.008 in] |
| Dielectric | PTFE, 0.640 mm [0.025 in] |
| Outer Conductor | Stainless steel, 0.860 mm [0.034 in] |
| Attenuation @ 300K | 7.3 dB/m @500 MHz; 10.3 dB/m @1 GHz; 23.1 dB/m @5 GHz; 32.7 dB/m @10 GHz; 43.9 dB/m @18 GHz |
| Attenuation @ 4K | 4.7 dB/m @500 MHz; 6.6 dB/m @1 GHz; 14.8 dB/m @5 GHz; 20.9 dB/m @10 GHz; 28.2 dB/m @18 GHz |
Target Applications
Low-Thermal-Load Cryogenic Routing
Suitable for RF paths where reduced heat conduction into cold stages is a key design requirement.
Dilution Refrigerator Interconnects
Used for dilution refrigerator interconnects where cable routing, thermal anchoring, and heat-load estimation must be evaluated together.
Quantum System Input Lines
Supports quantum system input and control lines where low thermal conduction is prioritized over lowest cable attenuation.
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