Antenna Testing Chamber (IMAGE)
Caption
The antenna testing chamber, lined with radio frequency and microwave foam absorbers, is equipped to accurately sample the near field of an antenna. Those measurements are then mathematically transformed into far-field data. “Near field” refers to the complex electromagnetic fields close to the antenna, while the “far field” encompasses predictable planar waves farther away from the antenna. Analyzing both fields allows a more complete performance evaluation of an antenna under test.
Credit
Southwest Research Institute
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