NSI-400V-40x20垂直平面近场量测系统
The 400V-40x20 is an ideal system for measuring medium and high gain antennas (>15 dBi) with large aperturesmaking it suitable for testing large arrays or reflector antennas. The 400V-40x20 is based on a inverted“T” design and is constructed of steel. For high stability a cross-braced dual-rail steel I-beam base is used. Thisrobust design is easy to maintain and align, and highly accurate. The high capacity probe carriage accommodatesprobes as low as WR1500 including 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.The system software runs on a Pentium based measurement workstation and provides automatic setup ofscans based on measurement parameters and desired output. Measured data can be processed for far-fieldor holographic patterns yielding complete characterization of the antenna’s performance. A single data setprovides information on antenna gain, side lobe structure, beam pointing and cross polarization.
The 400V-40x20 can be supplied with a variety of options and can be upgraded to allow for cylindrical orspherical measurements to expand system utility.
- High accuracy planarity <0.004" (0.10 mm) RMS
- 40’ x 20’ (12.2 m x 6.1 m) scan area
- Precision rack and pinion drive
- L-band to sub-mmWave band measurements
- Inverted "T" frame design for high accuracy
- Far-field, Near-field and Holographic patterns
- Cylindrical and Spherical options available
| SPECIFICATIONS | |
| Construction | Inverted “T” Frame (steel) |
|---|---|
| Drive system | Precision Stepper Motor; Rack and Pinion |
| Scan Area | 40’ x 20’ (12.2 m x 6.1 m) |
| Planarity | <0.004" (0.10 mm) RMS |
| Corrected Planarity (Requiresoptional StructureCorrection Software andProbe Translation Stage) | <0.002” (0.05 mm) RMS |
| Resolution (x,y) | x: 0.001” (0.025 mm) y: 0.0015” (0.0375 mm) |
| Postition Repeatability | 0.002” (0.05 mm) RMS |
| Scan Speed (X,Y) | x: 8 in/s (0.2 m/s) y: 10 in/s (0.25 m/s) |
| Probe Carriage Capacity | 175 lbs (79.5 kg) maximum ecommended;WR1500 |
| System Controller | NSI controller with parallel I/O, andserial interface. |
| Measurement Workstation | Measurement workstation computerwith large LCD monitor. |
| Stepper Motor PowerAmplifier | EIA 19” rack mount.(7” high x 14” deep) |
| Motor Cables | Quick-connect; 40’ (12 m); connectors on tower base |
| Scanner Absorber | Tower Absorber Kit (24” pyramidalcone) |
| Probe | WR90 Open-ended Waveguide Probe SMA (f) transition & Pyramidal absorber (3”) |
| Probe Mount | Angle Bracket - allows mountingprobe in“V” or “H” orientation |
| 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, 800 watts |
- Width - 583” (14.8 m)
- Depth - 172” (4.37 m)
- Height - 315” (8.0 m)
- System Weight - 53,000 lbs. (24,040 kg)
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