VNA test cables mitigate phase change over 75,000 flexure cycles
The phase stable cables can be ordered with male or female versions of SMA or Type-N connectors for cables operating to 18 GHz, 2.92-mm connectors for cables operating to 26.5 GHz or 2.4-mm connectors for test cables performing up to 40 GHz. Torsion resistant connector heads are directly attached to stainless steel conduit style armoring providing a rugged design for up to 5,000 mating cycles with proper care. The cable’s armoring enhances amplitude and phase stability by preventing stress due to over bending while maintaining the flexibility required for testing in a lab environment.
Pasternack’s ruggedized VNA test cables have a maximum phase change of +/- 2 degrees at 18 GHz, ±3 degrees at 26.5 GHz and ±5 degrees at 40 GHz with typical calibration procedures. Minimal phase change is essential because amplitude and phase variation following VNA calibration can cause inaccurate S parameter measurements. As a result, amplitude and phase stable cables are needed to make accurate vector network analyzer measurements.
“Our new VNA test cables provide industry-leading performance up to 40 GHz,” explains Steve Ellis, Interconnect Product Manager at Pasternack. “These test cables are rated to 5,000 mating cycles and 75,000 flexure cycles while still exhibiting excellent amplitude and phase stability to the given frequency.”
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