This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations. (January 2013) (Learn how and when to remove this message)

In telecommunications, aperture-to-medium coupling loss is the difference between the theoretical antenna gain of a very large antenna, such as the antennas in beyond-the-horizon microwave links, and the gain that can be realized in practice.

Note 1: Aperture-to-medium coupling loss is related to the ratio of the scatter angle to the antenna beamwidth.

Note 2: The "very large antennas" are referred to in wavelengths; thus, this loss can apply to line-of-sight systems also.

• Coupling loss

•  This article incorporates public domain material from Federal Standard 1037C. General Services Administration. Archived from the original on 2022-01-22. (in support of MIL-STD-188).

This electronics-related article is a stub. You can help Wikipedia by expanding it.

• v
• t
• e