.pdf version
 1' x 1' (300 mm x 300 mm) Vertical Planar Near-field Measurement System


The 100V-1x1 is an ideal system for measuring high frequency medium and high gain antennas (>15 dBi) with small apertures. The 100V-1x1 is based on a vertical "T" frame design and is constructed of modular high precision linear stages. This simple design is portable and easy to align and can be quickly reconfigured to use both mm-Wave modules or traditional coaxially connected probes. The scanner is mounted on a 23.6" x 23.6" x 0.5" (600 mm x 600 mm x 12.7 mm) breadboard with M6 tapped holes on a 25 mm grid. The scanner includes a cable management system and can support probe payloads of up to 10 lb (4.5 kg).

The NSI-100V-1x1 System includes:
- X-Y Vertical Planar Scanner with cable management system
- Y tower absorber kit
- Mounting plate with leveling feet
- Motor control unit
- Workstation computer with keyboard & monitor
- NSI2000 Measurement and analysis software


The system interfaces with a wide variety of RF equipment and is ideal for characterizing small aperture antennas from 8.2 - 500 GHz. The system software runs on an Intel based measurement workstation and provides automatic setup of scans based on measurement parameters and desired output. Measured data can be processed for far-field or holographic patterns yielding complete characterization of the antenna's performance. A single data set provides complete characterization of the antenna's gain, side lobes structure, beam pointing and cross polarization. The Model 100V-1x1 can be integrated with a mm-Wave VNA, providing a compact mm-Wave planar nearfield test package. RF up and down conversion modules can be mounted directly on the scanner, implying that NO cabling changes need to be made.

  • Low Cost & Portable
  • 1' x 1' (300 mm x 300 mm) Scan Area
  • 8.2 - 500 GHz Measurements
  • "T" Frame Design for High Accuracy
  • Far-field, Holographic and Near-field Patterns

Construction Vertical "T" Frame X-Y
Drive System Precision Ball Screw
Scan Area 1' x 1' (300 mm x 300 mm)
Planarity (RMS) <0.002" (0.05 mm)
Corrected Planarity (RMS) **Note: Requires optional Z/Roll stage; not available for use with mm-Wave modules <0.001" (0.025 mm)
Resolution (X,Y) 0.002" (0.05 mm)
Position Repeatability ±0.0008" (0.02 mm)
Scan Speed (X-Y) 0.5 in/s (12.7 mm/s)
Probe Carriage Capacity 10 lb (4.5 kg)
System Controller NSI controller with parallel I/O, and serial interface.
Measurement Workstation Measurement workstation computer with large LCD monitor.
Stepper Motor Power Amplifier EIA 19" rack mount, 4U (7" high x 14" deep)
Motor Cables Quick-connect; 10' (3m)
Scanner Absorber Y tower absorber kit (1.5" convoluted)
Probe Optional
Probe Mount Angle Bracket
Supported RF Devices NSI Panther, Keysight PNA or R&S ZVA Receiver Subsystem
Power 100-240 VAC switchable; 47-63 Hz, 500 watts

Scanner with Probe Roll/Z Stage


Scanner with optional rolling floor stand with integrated equipment rack



  • Width - 23.6" (600 mm)
  • Depth - 23.6" (600 mm)
  • Height - 28.7" (730 mm)
  • System Weight - 40 lb (18 kg) excluding computer, controller & RF equipment
  • No additional links are currently available

NSI-100V-1x1 - 1' x 1' (300 mm x 300 mm) scanner system including X-Y stepper motor driven scanner with aluminum base, motor cable set, controller, PC based measurement workstation, motor drive electronics, NSI antenna measurement software, system documentation and operation manual.


- RF Subsystem - VNA, mm-Wave modules, RF cables, probes etc
- AUT or mm-Wave module mounts
- Probe Roll/Z stage (Not available for use with mm-Wave modules)
- Rolling floor stand with integrated equipment rack
- Probes

For additional options and information see Scanner Options and Accessories

Nearfield Systems, Incorporated
19730 Magellan Drive, Torrance, CA 90502, USA, Tel: 310.525.7000, Fax: 310.525.7100
Email: sales@nearfield.com. Visit our website: www.nearfield.com