NSI-400V-30x30垂直平面近场量测系统
The 400V-30x30 is an ideal system for measuring medium and high gain antennas (>15 dBi) with large apertures making it suitable for testing large arrays or reflector antennas. The 400V-30x30 is based on an inverted “T” design and is constructed of steel. For high stability a cross-braced dual-rail steel I-beam base is used. This robust design is easy to maintain and align, and highly accurate. The high capacity probe carriage accommodates probes 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 phase patterns 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 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 400V-30x30 can be supplied with a variety of options and can be upgraded to allow for cylindrical or spherical measurements to expand system utility.
- High accuracy planarity <0.004" (0.10 mm) RMS
- 30’ x 30’ (9.1 m x 9.1 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 | 30’ x 30’ (9.1 m x 9.1 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) |
| 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 - 528” (13.41 m)
- Depth - 168” (4.27 m)
- Height - 471” (11.96 m)
- System Weight - 40,000 lbs. (18,182 kg)
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