GB24_Planar electromagnetic characterization (near field 2D & 3D)

Planar near-field electromagnetic characterization


PLATINOM has an ultra-wide band (2.0 GHz – 330 GHz) vertical planar near-field scanner installed on an optical table. Currently, three frequency bands are possible corresponding to the available near-field probes. The near-field probe is moved in front of the device under test positioned on the optical table. A vector network analyzer measures the electromagnetic wave created by the device under test on a volume of 1.0 x 1.0 x 0.3 m.

2D Scanner

 

 

Planar scanner set-up and associated measurements

Characteristics:

Frequency Range:

    • 1.7 – 3.3 GHz
    • 2.2 – 4.9 GHz
    • 8.0 – 330.0 GHz

Scan Area: 1 m x 1 m x 0.3 m

Resolution (x,y,z): 0.01 mm

Position Accuracy = 0.02 mm

optical table size: 1.2 X 2.0 m

Feasible measurement:

Characterization and calibration of short-range 2D imaging

Near-field measurement for mapping antenna surface currents

Antenna testing

  • Matching impedance (|S11|)
  • Radiation pattern (0.1°)
  • Polarization radiation pattern
  • Realized gain (± 0.6 dB accuracy)
  • Directivity (accuracy of gain)

Spherical near-field electromagnetic characterization (3D)

PLATINOM has an ultra-wide band (8.0 GHz – 110 GHz) spherical near-field antenna test range. The antenna under test can be fed by coaxial RF GSG probes.

Limoges ESTER, PLATINOM / SRF, Instrumentation EM 
Set-up for 3D Analysis
 

Characteristics:

Frequency Range: 8.0 – 110.0 GHz

Max AUT Diameter = 200 mm

Resolution : 0.1° Phi/Theta

 

Feasible measurement:

Antenna testing

      • Matching impedance (|S11|)
      • Radiation pattern (0.1°)
      • Polarization radiation pattern
      • Realized gain (± 0.6 dB accuracy)
      • Directivity (accuracy of gain)
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XLIM - Faculté des Sciences et Techniques
87060 LIMOGES CEDEX
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