.pdf version
 
    NSI-600C-18
 18" (5.5 m) Cylindrical Near-field Measurement System

 
DESCRIPTION

Model 600C-18 is a complete cylindrical near-field system ideal for measuring broad beam (azimuth) antennas with apertures less than eighteen feet making it ideal for testing stacked linear arrays. The 600C-18 consists of a vertical probe tower with an 18’ (5.5 m) travel, high capacity stepper motor-based azimuth positioner, control computer, software and cabling. The high capacity probe stage can accommodate probes as large as WR1500 including optional roll and Z-stages.
CAPABILITIES

The system interfaces with a wide variety of RF equipment and is capable of measuring amplitude and phase patterns from L-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 lobe structure, beam pointing and cross polarization.

The Model 600C-18 can be supplied with a variety of options to enhance system performance.
FEATURES
  • High Accuracy Y Linearity <0.004” (0.10 mm) RMS
  • 360° x 18’ (5.5 m) Cylindrical Scan Area
  • Precision Rack and Pinion Drive
  • L-band to mmWave Measurements
  • 5,800 lbs. (2,636 kg) load capacity Az positioner
  • Far-field, Near-field and Holographic Patterns

SPECIFICATIONS
Construction: Steel tower and base; separate azimuth stage
Drive System: Precision Stepper Motor; Rack and pinion
Scan Area: 360° in azimuth; 18’ (5.5 m) Y
Y-axis Linearity Uncorrected: <0.004” (0.10 mm) RMS
Resolution: 0.0015 azimuth; 0.002” (0.05 mm) (Y) RMS
Position Repeatability: 0.03° azimuth; 0.002” (0.05 mm) Y RMS
Scan Speed: 30°/s azimuth; 10in/s (.025 m/s) Y
Azimuth Stage Axial Load: 10,000 lbs (4,535 kg) max
Probe Carriage Capacity: 125 lbs (56.8 kg) maximum recommended, WR1500
System Controller: NSI controller with serial and parallel I/O interfaces
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: Absorber Kit (12” pyramidal cone)
Probe: WR90 Open-ended Waveguide Probe SMA (f) transition & Pyramidal absorber (3")
Probe Absorber:. Pyramidal Cone Absorber (8”)
Probe Mount. Angle Bracket - allows mounting probe in “V” or “H” orientation
RF Cables: Qty. 2 - Flexible 30’ (9.1 m) with SMA (m-m) coaxial terminations; DC-18 GHz
Rotary Joint: Qty. 1 DC-18 GHz on Az stage
Supported RF Devices: NSI Panther Receiver Subsystem or selection of Agilent, Rohde & Schwarz and Anritsu VNA's (contact NSI for a complete list)
Power: 100-120/200-240 V AC, 50/60 Hz, 500 watts

DIMENSIONS

  • Width - 69" (1.80 m)
  • Depth - 114" (2.9 m)
  • Height - 270" (6.9 m)
  • System Weight - 4,200 lbs. (1905 kg) approx

LINKS
  • No additional links are currently available.
    •
ORDERING INFORMATION

600C-18

18’ (5.5 m) Cylindrical Scanner System including azimuth and Y stepper motor driven scanner, 40’ (12 m) motor cable set, controller PC based measurement workstation, motor drive electronics, NSI Antenna Measurement Software, scanner absorber kit, X-band probe kit with probe absorber and mounting bracket, 2 RF cables, installation tool kit, system documentation and operation manual.

OPTIONS

Opt 100 - 220VAC 50 Hz Operation
Opt 101 - European Version - CE Mark
Opt 102 - Delete X-band Probe
Opt 103 - Additional Operation and Maintenance Manual
NSI-SC-5603 - Spherical Upgrade
NSI-SC-5621 - Probe Z-Stage, 9.75” translation
NSI-SC-5631 - Probe Roll Stage high capacity
NSI-SU-5601X - On-Site Installation and Training

For additional options and information see Scanner Options and Accessories, and Chambers.
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