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    NSI-700S-95
Spherical Near-field Measurement System - 102" ( 2.6 m) max AUT Dimension

DESCRIPTION

Model 700S-95 is an ideal system for measuring medium and low gain antennas up to 102 inches (2.6 m) in diameter. It is well suited to perform testing of medium and low gain antennas as well as cellular and PCS band base-station antenna testing. The 700S-95 uses a dual-axis theta-over-phi high accuracy stepper motor based positioning system with an adjustable counter weighted extension arm for the probe. The system can support AUT loads of up to 10,000 lbs (4,500 kg). The NSI-700S-95 uses an overhead dielectrically swing-arm for probe motion in the theta axis, and a dielectric AUT support stage for motion in the phi axis. The overall system is specifically designed to eliminate the adverse effects from interactions between the AUT and the surrounding environment. It is the ideal solution or providing complete 3D characterization of the antenna or wireless device.

CAPABILITIES

The system interfaces with a wide variety of RF equipment and is capable of measuring amplitude and phase patterns from UHF to mmWave Bands. 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.

FEATURES
  • Scan Area 360° Phi and 320 ° in Theta
  • UHF to mmWave Measurements
  • Complete 3D characterization
  • Dielectrics & optimized design to reduce reflections
  • Optional wideband, dual-port probe 800 MHz to 6 GHz or 500 MHz to 18 GHz
  • CTIA OTA Performance Testing
  • Far-field, Holographic and Near-field Patterns
  • Far-field Measurement Options Available

SPECIFICATIONS
Construction Theta, phi, and pol rotation stages with Dielectric overhead swing arm, steel support tower, steel vertical arm
Drive System Precision Stepper Motors
Scan Area 360° Phi and 320° in Theta °
Maximum Antenna Load 10,000 lbs (4,500 kg)
Maximum Antenna Diameter: 102 in (2.6 m)
Resolution 0.0015° phi and theta
Position Repeatability 0.015°
Rotational Speed (Theta and Phi) 30°/s Phi, 5 °/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 (12” pyramidal cone), Flat
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

NSI-700S-95 System in Partial Chamber From Various Angles

DIMENSIONS

  • Width - 214" (5.4m)
  • Depth - 146" (3.7m)
  • Height - 227" (5.7m)
  • Weight - 3,300 lbs (1500 kg)

LINKS
  • No additional links are curently available.
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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