
Cylindrical Near-Field Systems - NSI-MI
Small cylindrical near-field measurement systems are ideal for measuring broad beam (azimuth) antennas with apertures less than 1.5 m (5 ft), making them ideal for testing stacked linear arrays. The scanners consist of a vertical probe tower with up to a 1.5 m (5 ft) travel, high capacity stepper motor-based azimuth positioner, control computer, software, and cabling. The high capacity probe carriage can accommodate probes as low as S-band including optional roll and translation stages. This simple design is easy to assemble and align, accurate, and can be dismantled for transport or storage within one working day.
Features
- Low cost
- 360° x 0.9 m (3 ft) to 1.5 m (5 ft) cylindrical scan area
- High accuracy y-linearity 0.125 mm (<0.005”) RMS
- Precision rack and pinion drive
- S-band to mmWave measurements
- 725 kg (1,595 lb) load capacity azimuth positioner
- Far-field, near-field, and holographic patterns
Medium cylindrical near-field measurement systems are ideal for measuring broad beam (azimuth) antennas with apertures less than 3.7 m (12 ft) making them ideal for testing stacked linear arrays. The scanners consist of a vertical probe tower with up to a 3.7 m (12 ft) travel, high capacity stepper motor-based azimuth positioner, control computer, software and cabling. The high capacity probe carriage can accommodate probes as large as a WR1500 including optional roll and translation stages. This simple design is easy to assemble and align.
- 360° x 1.8 m (6 ft) to 3.7 m (12 ft) cylindrical scan area
- High accuracy y-linearity 0.10 mm (<0.004 in.) RMS to 0.076 mm (<0.003 in.) RMS
- Precision rack and pinion drive
- L-band to mmWave measurements
- 725 kg (1,595 lb) to 1,996 kg (4,400 lb) load capacity azimuth positioner
- Far-field, near-field, and holographic pattern
- 360° x 5.5 m (18 ft) to 16.0 m (52 ft) cylindrical scan area
- High accuracy y-linearity 0.10 mm (<0.004”) RMS
- Precision rack and pinion drive
- L-band to mmWave measurements
- 2,636 kg (5,800 lb) load capacity azimuth positioner
- Far-field, near-field, and holographic patterns










