NSI-500H-67x54水平平面近场量测系统
The 500H-50x50 is an ideal system for measuring large aperture antennas with medium to high gain (>15 dBi)making it suitable for testing larger arrays or reflector antennas that require a zenith orientation for testing. The500H-67x54 is based on an “H” frame design and is constructed using two reinforced steel X-rails that support a stiffyet light weight Ybridge on precision bearing rails. The high capacity probe stage can accommodate various probesfrom L to mmWave bands including any necessary RF equipment, probe extensions and optional roll and Z-stages.
The system interfaces with a wide variety of RF equipment and is capable of measuring amplitude and phasepatterns from L-band to mmWave bands. The system includes NSI Antenna Measurement Software.
Thesystem software runs on a Windows based measurement workstation and provides automatic setup of scansbased on measurement parameters and desired output. Measured data can be processed for far-field orholographic patterns yielding complete characterization of the antenna’s beam pointing and cross polarization.
The model 500H-67x54 can be supplied with a variety of options and can be upgraded to allow for verticalplanar measurements to expand system capabilities.
- High Accuracy - Uncorrected Planarity < 0.015” (0.375 mm) RMS
- 67’ x 54’ (20.4 m x 16.5 m) Scan Area
- Precision rack and pinion drive
- L-band to mmWave band measurements
- Far-field, Near-field and Holographic patterns
- Space Based Applications
| SPECIFICATIONS | |
| Construction | Steel X beams supporting steel Y bridge |
|---|---|
| Drive system | Precision Synchronized Stepper Motors |
| Scan Area | 67’ x 54’ (20.4 m x 16.5 m) |
| Planarity | < 0.015” (0.375 mm) RMS |
| Corrected Planarity (Requiresoptional StructureCorrection Software andProbe Translation Stage) | < 0.004” (0.100 mm) RMS |
| Resolution (x,y) | 0.001” (0.025 mm) (X) 0.002” (0.050 mm) (Y) |
| Postition Repeatability | 0.002” (0.05 mm) RMS |
| Scan Speed (X,Y) | 10 in/s (0.25 m/s) (X) 20 in/s (0.50 m/s) (Y) |
| Probe Carriage Capacity | 100 lb (45 kg) |
| System Controller | NSI controller with parallel I/O, andserial interface. |
| Measurement Workstation | Measurement workstation computerwith large LCD monitor. |
| Stepper Motor PowerAmplifier | NSI Motor Amplifier |
| Motor Cables | Cables with quick-connect terminations |
| Scanner Absorber | X-Y absorber kit, 12” pyramidal under bridge, 5” wedge absorber on X rails |
| Probe | WR90 Open-ended Waveguide Probe SMA (f) transition & Pyramidal absorber (3”) |
| RF Cables | 20 GHz RF Cables |
| Supported RF Devices | NSI Panther Receiver Subsystemor selection of Agilent, Rohde &Schwarz and Anritsu VNA’s (contactNSI for a complete list) |
| Power | 100-240 VAC switchable, 47-63 Hz |
- Width - 876” (22.3 m)
- Depth - 708” (17.9 m)
- Height - Variable
- System Weight - 67,000 lbs (30,400 kg)
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