.pdf version
    NSI-200V-5x5G
5' x 5' (1.5 m x 1.5 m) Vertical Planar Near-field Measurement System

Photograph of five by five vertical planar near field scanner with granite base
DESCRIPTION

The 200V-5x5G is an ideal system for measuring medium and high gain antennas (>15 dBi) with small apertures making it suitable for testing feeds and small arrays or reflector antennas on frequencies that may exceed 50 GHz. The 200V-5x5 is based on an inverted "T" “design and is constructed of modular high strength aluminum vertical beam riding on steel rails mounted on a granite slab. This design allows enhanced accuracy and improved mechanical stability as a function of temperature.
CAPABILITIES

The system interfaces with a wide variety of RF equipment and is capable of measuring amplitude and phase patterns from S-band to mmWave bands. The system includes NSI Antenna Measurement Software.

The system software runs on a Pentium 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 information on antenna gain, side lobes structure, beam pointing and cross polarization.

The Model 200V-5x5G can be supplied with a variety of options, including cylindrical or spherical options to accommodate lower gain antennas.
FEATURES
  • 5' x 5' (1.5 m x 1.5 m) Scan Area
  • S-band to mmWave Measurements
  • Inverted "T" Frame Design and Granite Base for Enhanced Accuracy
  • Far-field, Holographic and Near-field Patterns
  • Cylindrical and Spherical Options Available

SPECIFICATIONS
Construction Inverted "T" Frame (aluminum) on Granite base
Drive System Precision Stepper Motor
Scan Area
5' x 5' (1.5 m x 1.5 m)
Planarity
 <0.002" (0.05 mm) RMS
Corrected Planarity (Requires optional Structure Correction Software and Probe Translation Stage)
 <0.001" (0.025 mm) RMS
Resolution (x,y)
 0.0025" (0.06 mm)
Position Repeatability
 0.002" (0.05 mm) RMS
Scan Speed (X-Y)
 X - 15 in/s (0.38 m/s)
Y - 30 in/s (0.76 m/s)
Probe Carriage Capacity
 20 lbs. (9 kg) maximum recommended, WR430
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. (7" high x 14" deep)
Motor Cables
 Quick-connect; 40' (12 m)
Scanner Absorber
 X-Y absorber kit (5" pyramidal cone)
Probe WR90 Open-ended Waveguide Probe SMA (f) transition & Pyramidal absorber (3")
Probe Mount Angle Bracket - allows mounting probe in
"V" or "H" orientation
RF Cable Qty. 2 Flexible 20' (6.1 m) with SMA (m-m) coaxial connector; DC-20 GHz
Supported RF Devices
 NSI Panther Receiver Subsystem or selection of Agilent, Rohde & Schwarz and Anritsu VNA's (contact NSI for a complete list)
Power
 100-240 VAC switchable, 47-63 Hz, 500 watts

DIMENSIONS

  • Width - 96" (2.4m)
  • Depth - 32" (0.8m) (Excluding probe)
  • Height - 101" (2.6m)
  • System Weight - 2 000 lbs (907 kg) approx.


ORDERING INFORMATION

NSI-200V-5x5G - 5' x 5' (1.5 m x 1.5 m) scanner system including X-Y stepper motor driven scanner with dual rail granite base, motor cable set, controller, PC based measurement workstation, motor drive electronics, NSI antenna measurement software, installation tool kit, system documentation and operation manual.

OPTIONS

Opt 100 - 220VAC 50 Hz Operation
Opt 101 - European Version
NSI-SC-5620 - Probe Translation Stage, 4" (100 mm) Travel
NSI-SC-5630 - Probe Roll Stage (100 mm) with 26.5 GHz rotary joint
NSI-SW-5301 - Upgrade NSI Standard Edition Software to Professional
NSI-SW-5105 - Motion Tracking Interferometer (MTI) Software

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