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Antenna & Microwave Measurement Facilities

CSIRO has extensive facilities for performing microwave measurements on active and passive devices over a broad frequency range from 750 MHz to over 110 GHz.

Luneberg lens measurements in the anechoic chamberThe Near-field/Far-field anechoic chamber

Individual test laboratories have the instrumentation required to support research activities in microwave components, antennas and feed systems. Facilities for network analysis includes several vector analysers and scalar analysers with a full range of calibration and test components in waveguide and coax to a frequency of 50 GHz.

Antenna test ranges 

Our antenna test ranges include:

Shielded Far-Field anechoic chamber

Frequency range 1 to 200 GHz, dimensions 12m x 6m x 4.5m. Positioner axes available are: source height & polarization, source to AUT (Antenna Under Test) distance, AUT azimuth, polarization, axial and transverse location. Measurements regularly done in this chamber include: co- and cross-polarized radiation patterns, gain, phase centre position and axial ratio.

Near-Field / Far-Field anechoic chamber

Frequency range 750MHz to 60GHz, dimensions 8m x 6m x 4m, measurement capability as above. Planar, cylindrical and spherical near-field scanning capability for antennas up to about 2.4 metres diameter. May also be used for far-field measurements. Forklift access is available for heavy antennas.

40 metre outdoor antenna test range

Used mainly for far-field, holographic and off-satellite measurements on larger antennas and/or for lower frequency measurements. An elevation over azimuth positioner is available for the off-satellite measurements.

Equipment

A selection of  receivers (e.g. SA1783, SA1795, Agilent 8363B) are used to optimise the measurement configuration for enhanced dynamic range. All ranges use synthesised signal sources.

Software

MI-Technologies software for far-field and near-field antenna measurements is used in both anechoic chambers. This near-field software includes probe compensation and can generate one or two dimensional aperture-field or far-field patterns.

Other

The facilities are supported by a microwave test laboratory and specialised microwave workshop.

Measurements available in the laboratory include:

  • S-parameters to 50 GHz in waveguide and coaxial systems,
  • scalar network measurements to 115GHz,
  • dielectric properties and noise temperature.

The workshop offers specialised prototyping and manufacture of antennas and microwave components to close tolerances in a variety of materials.