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Antenna Measurement, NSI-MI Technologies, RF/Microwave

Spherical Near-field mmWave Measurement System

Manufacturer: NSI-MI Technologies
Product Number: SNF-FIX-1.0

Product Description

The SNF-FIX-1.0 is ideal for measuring stationary mmWave on-chip antennas and applications from 10 GHz up to 300 GHz. It uses a multi-axis high accuracy stepper motor driven system to position the probe on a spherical surface while the AUT remains stationary. The system is large enough to incorporate RF converter modules from OML and VDI as part of the probe carriage assembly and maintain a probe tip radius of roughly 500 mm (20 in.). Individual mmWave modules can be swapped to cover the relevant frequency bands, leaving the rack and cabling portion of the RF sub-system intact; thus making for a very modular and upgradable test system. All positioners contain integrated RF rotary joints, maximizing cable phase stability under test as well as slip-ring assemblies in the Phi and Theta axis positioners.

Key Specification

  • Scan Area 360° Phi and 360° Theta (Practical limits are set by the user)
  • External adjustable limit switches allow the user to set fail-safe limits to protect RF equipment or
  • AUT fixturing
  • Polarization stage included
  • No AUT motion
  • 10 – 500 GHz FF frequency coverage
  • Far-field measurements capability
  • Spherical Near-field measurements capability
  • Holographic back projection capability
  • Motion Controller with angular structural correction capability
  • High accuracy positioners

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