Superconducting Coaxial Cable Assemblies
(0. 085" type Nb-Nb Superconducting Coaxial Cable Assemblies)

Features

Operating frequency is available up tp 66GHz.
Minimum bend radius: 30mm

Charts

* Measurements were taken with 1 m lead cables on both input/ output ends.
* Measurements were taken after superconducting coaxial cables became completely super conductive.

Variation of insertion loss with frequency(4K,10mK)

This is an extract of a part of the ETH Zürich's paper on measurement results using KEYCOM products(Page 9 of 15). Source: Philipp Kurpiers, Theodore Walter,Paul Magnard,Yves Salathe and Andreas Wallraff
Department of Physics,ETH Zürich, Zürich,CH-8093,Switzerland
"Characterizing the attenuation of coaxial and rectangular microwave-frequency waveguides at cryogenic temperatures"

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Pulse transmission characteristics of 10m superconducting delay line (including the lead part)

*In superconducting state

Main specifications

Part No.	Max. frequency(GHz)	External conductor		Dielectric		Internal conductor		Heat Quantity （μw/k）*	Min. Bending Radius （mm）	Available Connectors
NbNb085	66GHz	Outer Diameter （mm）	Material	Outer Diameter （mm）	Material	Outer Diameter （mm）	Material	4K-20K
		2.20	Nb	1.62	Foamed PTFE	0.51	Nb	3.3	70.0	SMA, APC2.9, APC2.4, APC1.85

*Heat quantity required for one end of 10 cm long cable (excluding connectors) to reach 20 K or 100 K when 4 K heat anchor is applied to the other end of the cable.

Connector type	SMA	2.9mm（K）	2.4mm	1.8mm（V）
Max. frequency(GHz)	18.5	40 or (46)	50	60 or (65)

Part No.

NbNb085A	-	K(m)K(f)	-	1000
Cable type		Connector name		Connector phase front length (mm) max. 1000mm

0.085" type
Applicable connectors - SMA, APC2.9(k), APC2.4, V
A crimping connection is standard.