Multi Aperture Probes

Multi-Aperture Probes

Model: ANT-MAP

Features
  • Dual-linear polarization
  • Broad, stable beamwidth
  • Low cross-polarization
  • Up to 8x times faster PNF acquisition speed
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About MAP

NSI-MI Technologies' Multi-Aperture Probes are a line of dual-linearly polarized, high-performance probes covering 8.4 to 40.0 GHz. By enabling simultaneous multi-probe acquisition, MAP technology can achieve up to 8x faster PNF measurements compared to traditional single-probe approaches. Each probe assembly spans a full waveguide frequency band aligned to standard waveguide band designations, and is supplied with typical probe pattern correction coefficients for Planar Near-Field (PNF) measurements.* The circular aperture is optimized for near-field array measurements, and knife-edge profiles minimize backscatter for improved accuracy. Supplied as highaccuracy calibration items, each probe includes standard absorber and a mounting cage compatible with most NSI-MI planar scanners. Every assembly ships in a rugged storage case and is designed and manufactured for many years of reliable service.

*PNF probe pattern coefficients provided are compatible with the NSI2000 software. For other availability and compatibility with other antenna measurement software please contact sales.
How it Works

In a traditional planar near-field measurement, a single probe moves across a grid in front of the antenna under test, collecting field data one position at a time. A second scan is typically required to capture the opposite polarization.

MAP accelerates this process by using four apertures to collect both polarizations across multiple gridlines at once. At each scanner position, MAP gathers eight measurements, reducing the amount of scanner travel required and eliminating the need for a separate cross-polarization pass.

NSI-MI acquisition software automatically creates the optimized MAP scan pattern, while processing software handles the resulting measurement data within the existing PNF workflow. Together, this approach enables up to 8x faster PNF measurements compared with traditional single-probe methods.

Multi Aperture Probes Chamber
MAP how it works

Multi-Aperture Probes

Introducing MAP

NSI-MI’s Multi-Aperture Probe technology accelerates planar near-field measurements through simultaneous multi-point acquisition.

Up to 8× Faster

Dramatically reduce acquisition time while maintaining measurement performance and increasing testing throughput.

Accelerate Your Insights

Spend less time scanning and more time evaluating antenna performance, understanding results, and moving testing forward

MAP on a Vertical Planar Near-Field System

Multi Aperture Probes Scan 

MAP on a Vertical Planar Near-Field System

Multi Aperture Probes 

Mounting Plate Configuration

Multi Aperture Probes Mounting Plate
Multi Aperture Probes Mounting Plate Diagram
  • Specifications
  • Applications
  • Includes
  • Add-Ons
  • Ordering Guide
Parameters ANT-MAP-8.2-12.4 ANT-MAP-12.4-18.0* ANT-MAP-18.0-26.5* ANT-MAP-26.5-40.0*
Frequency Range (GHz) 8.2–12.4 12.4–18.0 18.0–26.5 26.5–40.0
MAX Power (W) 25 25 8 8
RF Connector SMA Female SMA Female 2.92 mm Female 2.92 mm Female
Absorber size in. (mm) 5 (127) Convoluted 3 (76.02) Convoluted 3 (76.02) Convoluted 3 (76.02) Convoluted
Nominal VSWR 2:1 (Max < 3:1)
Cross-polarization discrimination > 30 dB
Port to port isolation > 30 dB
Operating temperature range 10°C – 50°C
Gain (nominal) 9.0 dBi
3 dB beamwidth 40°
Dimensions
Material Aluminum Aluminum Aluminum Aluminum
Length 47.5 cm
(18.7 in.)
38.0 cm
(15.0 in.)
36.3 cm
(14.3 in.)
36.1 cm
(14.2 in.)
Width 61.0 cm
(24.0 in.)
61.0 cm
(24.0 in.)
45.7 cm
(18.0 in.)
45.7 cm
(18.0 in.)
Height 30.5 cm
(12.0 in.)
30.5 cm
(12.0 in.)
20.3 cm
(8.0 in.)
20.3 cm
(8.0 in.)
Weight 11.5 cm
(25.3 in.)
9.52 cm
(21.0 in.)
3.6 cm
(8.0 in.)
3.6 cm
(8.0 in.)
Shipping Dimensions
Case Size L x W x H 85.7 x 72.4 x 41.3
(33.8 x 28.5 x 16.25)
85.7 x 72.4 x 41.3
(33.8 x 28.5 x 16.25)
63.0 x 63.4 x 35.9
(24.8 x 25.0 x 14.2)
63.0 x 63.4 x 35.9
(24.8 x 25.0 x 14.2)
Case Weight
14.3 kg
(31.5 lb)
14.3 kg
(31.5 lb)
9.7 kg
(21.4 lb)
9.7 kg
(21.4 lb)
Case Weight with ANT-MAP
Assembly
25.8 kg
(56.8 lb)
25.8 kg
(56.8 lb)
13.3 kg
(29.4 lb)
13.3 kg
(29.4 lb)
* Future model, physical values approximate.
  • Satellite/Radar antenna test
  • Near-Field antenna measurements
  • High-throughput production test
  • ANT-MAP Multi-Aperture Probe
  • Storage case/container
  • Control interface
  • Mounting cage
  • User manual
  • Calibration certificates
  • Multi-probe conversion kit for VPNF scanners
  • Probe specific gain and pattern calibration
Model Number Description
ANT-MAP-8.2-12.4 Multi-Aperture Probe 8.2–12.4 GHz (X band)
ANT-MAP-12.4-18.0* Multi-Aperture Probe 12.4–18.0 GHz (Ku band)
ANT-MAP-18.0-26.5* Multi-Aperture Probe 18.0–26.5 GHz (K band)
ANT-MAP-26.5-40.0* Multi-Aperture Probe 26.5–40.0 GHz (Ka band)
* Future model