18 GHz 086 Stainless Steel Cryogenic RF Coaxial Cable G22E-SS

P/N: G22E-SS

  • For larger low-thermal-load RF paths
  • Stainless steel conductors reduce heat conduction
  • 2.17 mm OD supports stable cable routing
  • Suited to quantum input and control lines
  • Rated to 18 GHz for cable selection
Engineering Note
The G22E-SS is a 2.17 mm OD stainless steel cryogenic RF coaxial cable designed for larger-format 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 larger quantum system input or control paths. 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 G22E-SS
Product Type Stainless Steel Cryogenic RF Coaxial Cable
Material Family SS
Outer Diameter 2.17 mm
Operating Frequency 18 GHz
Cable-Level Cutoff Frequency 59 GHz
Characteristic Impedance 50 ± 2.0 Ω
Shielding Effectiveness >165 dB
Dielectric Withstand Voltage 500 V DC
Velocity of Propagation 70%
Min. Bending Radius, Static 7.00 mm
Weight 0.021 kg/m
Temperature Range -268°C to 150°C
4K Thermal Conductivity 43 ×10⁻⁶ W·cm/K
Inner Conductor Stainless steel, 0.530 mm [0.021 in]
Dielectric PTFE, 0.860 mm [0.034 in]
Outer Conductor Stainless steel, 2.170 mm [0.085 in]
Attenuation @ 300K 3.0 dB/m @500 MHz; 4.3 dB/m @1 GHz; 9.6 dB/m @5 GHz; 13.6 dB/m @10 GHz; 18.3 dB/m @18 GHz
Attenuation @ 4K 1.9 dB/m @500 MHz; 2.6 dB/m @1 GHz; 5.9 dB/m @5 GHz; 8.3 dB/m @10 GHz; 11.2 dB/m @18 GHz

Target Applications

Larger Low-Thermal-Load RF Paths
Suitable for larger-format cryogenic RF paths where reduced heat conduction into cold stages remains a primary design requirement.
Dilution Refrigerator Interconnects
Used for dilution refrigerator interconnects where cable diameter, routing form, thermal anchoring, and heat-load estimation must be evaluated together.
Quantum System Input Lines
Supports quantum system input and control lines where thermal conduction into cold stages is constrained by system design.
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