GB24_Antennas characterization

Antenna characterization

The objective of an antenna test range is to simulate the operational environment of the test antenna so the radiation specifications would be measured in a way as realistic as possible. The distance R between the antenna under test and the transmit antenna is great enough to approximate the spherical wave by a plane wave. The conventional far-field condition must respect this relation R = 2D2/λ with D the maximum aperture diameter and λ the wavelength

 

 

View of the indoor antenna test room

Features :

Frequency Range: 0.5 GHz to 12.0 GHz

Full anechoic and shielded chamber

External dimensions: 9 m x 5 m x 5 m

Antenna size limits :1 m to 500 MHz and 0.3 m to 12 GHz

Weight limits: 20 Kg

Feasible measurement:

Matching impedance (|S11|)

Radiation pattern (0.5°)

Polarization radiation pattern

Realized gain (± 0.5 dB accuracy)

Directivity (accuracy of gain)

Compact Antenna Test Range (PLATINOM/CISTEME)

CATR provides a far-field condition at a relatively short distance from the feed. The principle is to produce a quasi-plane wave test region by collimating the field from a point source using a equiphase radiating aperture such as a parabolic reflector.

 

Views of the compact base and reflector

Characteristics:

Frequency Range: 8.0 GHz to 110 GHz

Full anechoic and shielded chamber

External dimensions: 8 m x 5 m x 5 m

Antenna size limits :80 cm

Weight limits: 6 Kg

Feasible measurement:

Matching impedance (|S11|)

Radiation pattern (0.5°)

Polarization radiation pattern

Realized gain (± 0.5 dB accuracy)

Directivity (accuracy of gain)

 

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