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NSI-700S-70
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Spherical Near-field Measurement System - 118 " (3.0 m) max AUT Dimension
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| DESCRIPTION
Model
700S-70 is an ideal system for measuring medium and low gain antennas
up to 118 inches (3 m) in diameter and is ideally suited to perform
cellular and PCS band base-station antenna testing. The 700S-70 uses
a dual-axis phi-over-theta high accuracy stepper motor based positioning
system with an adjustable extension foot for probe support. The system
is constructed of modular high strength aluminum and can support loads
of up to 300 pounds (136 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-70 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-70 can be supplied
with a variety of options to enhance system performance. |
FEATURES
- Full 360° Scan Area
- L-band to mmWave Measurements
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- Far-field, Holographic and Near-field Patterns
- Far-field Measurement Options Available
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| SPECIFICATIONS |
| Construction |
Theta,
phi, and pol rotation stages with “L” bracket (aluminum) |
| Drive
System |
Precision
Stepper Motors |
| Scan
Area |
Full
spherical; Phi/Theta - 360° |
| Maximum
Antenna Load |
300
lbs (136 kg) at 9” CG off set |
| Maximum
Antenna Diameter: |
118
in (3 m) |
| Resolution |
0.01°
phi and theta |
| Position
Repeatability |
0.03° |
| Rotational
Speed (Theta and Phi) |
20°/s
Phi, 30°/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 |
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Typical images of NSI-700S-70 Scanner
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| DIMENSIONS
- Width - 106" (2.7 m)
- Depth - variable
- Height - 116" (2.9 m)
- Weight - 2,500
lbs (1,090 kg)
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| 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
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