NSI-600C-8柱面近场量测系统
Model 600C-8 is a complete cylindrical near-fi eld system ideal for measuring broad-beam (azimuth) antennaswith apertures less than eight feet making it ideal for testing stacked linear arrays. The 600C-8 consists of avertical probe tower with an 8’ (2.4 m) travel, high capacity stepper motor based azimuth positioner, controlcomputer, software and cabling. The high capacity probe stage can accommodate probes as large as a WR650including optional roll and translation stages. This simple design is easy to assemble and align, accurate, andcan be dismantled for transport or storage within one day.
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-8 can be supplied with a variety of options to enhance system performance.
- High Accuracy Y Linearity <0.003” (0.076 mm)RMS
- 360° x 8’ (2.4 m) Cylindrical Scan Area
- Precision Rack and Pinion Drive
- Mid-range L-band to mmWave Band measurements
- Far-field, Near-field and Holographic patterns
- 1,595 lb. (725 kg) load capacity Az positioner
| SPECIFICATIONS | |
| Construction | Steel tower and base; separate azimuthstage |
|---|---|
| Drive system | Precision Stepper Motors |
| Scan Area | 360° in azimuth; 6’ (1.8 m) Y |
| Y-axis Linearity Uncorrected: | <0.003” (0.076 mm) RMS |
| Resolution | 0.0125° in azimuth; 0.001” (0.025 mm) Y |
| Postition Repeatability | 0.03° azmiuth; 0.002” (0.05 mm) Y RMS |
| Scan Speed | 20°/sec. (azimuth); 15 in/s (0.38 m/s) Y |
| Azimuth Stage Axial Load: | 1595 lbs (725 kg) max |
| Probe Carriage Capacity | 50 lb. (22.7 kg) maximum recommended,WR650 |
| 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 10’ (3.05 m) with SMA(m-m) coaxial terminations; DC-18 GHz |
| 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 -53.5” (1359 m)
- Depth -63.0” (1600mm)
- Height - 152.6” (3875.51 m)
- System Weight - 1,400 lbs (636 kg) approx.
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