18 GHz 023 CuNi Cryogenic RF Coaxial Cable G06E-CN

Engineering Note

The G06E-CN is a 0.58 mm OD copper nickel cryogenic RF coaxial cable designed for dense low-temperature RF routing where cable diameter and heat-load constraints are important selection factors. Its construction uses a silver-plated CuNi inner conductor, PTFE dielectric, and CuNi tube outer conductor, making it suitable for compact cryogenic wiring in quantum systems, dilution refrigerator interconnects, and low-temperature microwave measurement setups. 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.

Cable Model	G06E-CN
Product Type	Copper Nickel Cryogenic RF Coaxial Cable
Material Family	CuNi
Outer Diameter	0.58 mm
Operating Frequency	18 GHz
Cable-Level Cutoff Frequency	240 GHz
Characteristic Impedance	50 ± 3 Ω
Shielding Effectiveness	>165 dB
Dielectric Withstand Voltage	100 V DC
Velocity of Propagation	70%
Min. Bending Radius, Static	2.90 mm
Weight	0.002 kg/m
Temperature Range	-268°C to 150°C
4K Thermal Conductivity	TBD; thermal data under confirmation
Inner Conductor	Silver-plated CuNi wire, 0.127 mm [0.005 in]
Dielectric	PTFE, 0.432 mm [0.017 in]
Outer Conductor	CuNi tube, 0.580 mm [0.023 in]
Attenuation @ 300K	4.0 dB/m @500 MHz; 5.6 dB/m @1 GHz; 12.6 dB/m @5 GHz; 17.8 dB/m @10 GHz; 23.9 dB/m @18 GHz
Attenuation @ 4K	1.9 dB/m @500 MHz; 2.7 dB/m @1 GHz; 6.1 dB/m @5 GHz; 8.6 dB/m @10 GHz; 11.6 dB/m @18 GHz