The anechoic chamber was built through carefully design and
calculation, and it can provide near-field measurement conditions
for testing antennas radiation performance. This chamber can
effective eliminate outside electromagnetic interference and other
reflection interference. It can simulate free space environment
required by antenna measurement, in order to obtain reliable &
standardized test data, ensuring the accuracy of antenna
measurement.
According to the function, anechoic chamber’s main body can be
divided into near-field antenna measurement microwave anechoic
chamber and antenna measurement control room. Considering work type
and usage, we would like to choose a rectangular anechoic chamber.
Anechoic chamber’s size: 60m×30m×30m (net size of shielding space)
Performance of absorbing materials:
Working frequency range 0.4～110GHz
Main wall’s reflection loss ≥35dB
Other wall’s reflection loss ≥30dB
Quiet zone’s reflection level:
0.8GHz～1GHz, ≤-40dB
1GHz～3GHz, ≤-45dB
3GHz～110GHz, ≤-50dB
Such anechoic chamber & related test field can fully the
measurement on the radiation performance parameters, such as:
Aantenna Gain, Radiation Pattern, Directivity, Axial Ratio,
Half-power Beam width, Front to Back Ratio, Beam Pointing Angle,
Cross-polarization Discrimination, Upper Side-Lobe Suppression,
Zero-filling, Equivalent Radiation Efficiency and etc. EUT, e.g.:
horn antenna, micro strip antenna, yagi uda, slot waveguide antenna
and etc.
For more specified requirements, please contact our design expert
for a deep discussion.
