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    NSI-700S-80
Spherical Near-field Measurement System - 20 " ( 0.5 m) max AUT Dimension

DESCRIPTION

Model 700S-80 is an ideal system for measuring medium and low gain antennas up to 20 inches (0.5 m) in diameter and is ideally suited to perform cellular and PCS band base-station antenna testing. The 700S-80 uses a dual-axis theta-over-phi high accuracy stepper motor based positioning system with an adjustable extension arm for the probe. The system is constructed of modular high strength aluminum and can support loads of up to 165 lbs (75 kg). The location of the probe is adjustable to accommodate different configurations.

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 Model 700S-80 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 700S-80 can be supplied with a variety of options to enhance system performance.

FEATURES
  • Scan Area 360° Phi and 330° in Theta
  • L-band to mmWave Measurements
  • Far-field, Holographic and Near-field Patterns
  • Far-field Measurement Options Available

SPECIFICATIONS
Construction Theta, phi, and pol rotation stages with “L” bracket (aluminum)
Drive System Precision Stepper Motors
Scan Area 360° Phi and 330° in Theta
Maximum Antenna Load 165 lbs (75 kg)
Maximum Antenna Diameter: 20 in (0.5 m)
Resolution 0.01° phi and theta
Position Repeatability 0.03°
Rotational Speed (Theta and Phi) 180°/s Phi, 10°/s Theta
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 (5” pyramidal cone)
Probe WR90 Open-ended Waveguide Probe SMA (f) transition & Pyramidal absorber (3")
RF Cables 20 GHz RF Cables
Rotary Joints Qty. 3 - DC-26.5 GHz, (Phi, Theta, Pol)
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, 50/60 Hz, 500 watts

DIMENSIONS

  • Width - 72" (1.8 m)
  • Depth - 72" (1.8 m)
  • Height - 74 " (1.9 m)
  • Weight - 750 lbs (337 kg)

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    for additional dimension specifications.
LINKS
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ORDERING INFORMATION

Please contact the NSI Sales department to order this product.

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