NSI-600C-22柱面近场量测系统
Model 600C-22 is a complete cylindrical near-fi eld system ideal for measuring broad-beam (azimuth) antennaswith apertures less than twenty-two feet making it ideal for testing stacked linear arrays, cellular and PCSantennas as well as higher frequency antennas with larger apertures. The 600C-22 consists of a verticalprobe tower with an 22’ (6.7 m) travel, high capacity stepper motor based azimuth positioner, control computer,software and cabling. The high capacity probe stage can accommodate probes as large as a WR1500 includingoptional roll and translation stages.
The system interfaces with a wide variety of RF equipment and is capable of measuring amplitude and phasepatterns from mid-range L-band to mmWave Band. 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-field orholographic patterns yielding complete characterization of the antenna’s performance. A single data set providesinformation on antenna gain, side lobe structure, beam pointing and cross polarization.
The Model 600C-22 can be supplied with a variety of options to enhance system performance.
- High Accuracy Y Linearity <0.004” (0.10 mm)RMS
- 360° x 22’ (6.7 m) Cylindrical Scan Area
- Precision Rack and Pinion Drive
- L-band to mmWave Band measurements
- Far-field, Near-field and Holographic patterns
- 10,000 lbs. (4,535 kg) load capacity Azpositione
| SPECIFICATIONS | |
| Construction | Steel tower and base; separate azimuthstage |
| Drive system | Precision Stepper Motors; Rack and pinion |
| Scan Area | 360° in azimuth; 22’ (6.7 m) Y |
| Y-axis Linearity Uncorrected: | <0.004” (0.10 mm) RMS |
| Resolution | 0.0015 azimuth; 0.002” (0.05 mm) (Y)RMS |
| Postition Repeatability | |
| Scan Speed | 30°/sec azimuth; 10in/s (.025 m/s) Y |
| Azimuth Stage Axial Load: | 10,000 lbs (4,535 kg) max |
| Probe Carriage Capacity | 175 lbs (80 kg) maximum recommended;WR1500 |
| System Controller | NSI controller with parallel I/O, and serial interface. |
| 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 (8” pyramidal cone) |
| Probe | WR90 Open-ended Waveguide Probe SMA (f) transition & Pyramidal absorber (3”) |
| Probe Absorber | Pyramidal Cone Absorber (8”) |
| Probe Mount | Angle Bracket - allows mounting probe in “V” or “H” orientation |
| RF Cables | Qty. 4- Flexible 15’ (4.5 m) with SMA (mm), Coaxial Termination; DC-18GHz |
| Rotary Joint | Qty 1 DC-18 GHz on Az stage |
| 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, 47-63 Hz, 500 watts |
- Width - 68.0” (1727.2 m)
- Depth - 104.2” (2646.01 m)
- Height - 318.9” (8099.8 m)
- System Weight - 4,200 lbs (1,905 kg) approx
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