Article · Wikipedia archive · Last revised Jun 24, 2026

Shadow loss

In telecommunications, the term shadow loss has the following meanings:The attenuation caused to a radio signal by obstructions in the propagation path. In a reflector antenna, the relative reduction in the effective aperture of the antenna caused by the masking effect of other antenna parts, such as a feed horn or a secondary reflector, which parts obstruct the radiation path.

Last revised
Jun 24, 2026
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In telecommunications, the term shadow loss has the following meanings:

  1. The attenuation caused to a radio signal by obstructions in the propagation path.
  2. In a reflector antenna, the relative reduction in the effective aperture of the antenna caused by the masking effect of other antenna parts, such as a feed horn or a secondary reflector, which parts obstruct the radiation path.
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