Overview
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Junkosha’s new mmWave VNA Test Cable Assembly exhibits excellent phase (within +/- 4.5˚ at 50 GHz), and amplitude (within +/- 0.08 dB at 50 GHz) stability in flexure alongside strong phase stability in temperature through its 50 GHz bandwidth, available with NMD connector.

The assembly also displays impressive performance durability, surpassing 40,000 tick tock cycles during testing. The cable is bent 180˚ on a 2.25” radius mandrel with ease, demonstrating superior flexibility and no spring back. A ruggedized port side NMD connector is also available to ensure reliable connections to the VNA.

Manufactured By: Junkosha, Inc.

Cable Type	MWX821		MWX851
Frequency [GHz]	26.5		50
Assembly Length [in]	25"	38"	25"	38"
Maximum Operating Frequency [GHz]	26.5	26.5	50	50
Characteristic Impedance Nom. [Ω]	50	50	50	50
Maximum Phase Stability [degree (@Max Freq.)]	3.9	7.1	4.5	9.0
Maximum Amplitude Stability [dB (@Max Freq.)]	0.08	0.15	0.08	0.15
Nominal Velocity of Propagation [%]	79	79	79	79
Typical Insertion Loss [dB (@Max Freq.)]	1.75	2.45	3.6	5.1
Maximum Insertion Loss [dB (@Max Freq.)]	2.1	2.8	4.5	6.2
Typical VSWR	1.29:1		1.43:1
Shielding Effectiveness to 18GHz [dB]	> 90		> 90
Cable Outer Diameter [in (mm)]	0.56 (14.2)		0.56 (14.2)
Minimum Bending Radius [in (mm)]	2.25 (57)		2.25 (57)
Typical Cable Mass [oz/ft (g/m)]	2.58 (240)		2.26 (210)
Operating Temperature Range [°C]	23+/-5		23+/-5

Features

The highest precision
Guaranteed Phase & Amplitude stability
Ruggedized NMD connectors available

Use

Vector network analyzers
Calibration
The highest accuracy measurement

Typical Phase Stability in Flexure

Test condition

Sample length: 635 mm.

Bend condition

Initial straight shape
Bent 180° 114 mm mandrel
Back to the straight shape again

View YouTube Channel

Junkosha - 8 Series Cables - VNA Test Assembly