aperture to medium coupling loss
 

* 1.The difference between the theoretical gain of a very large antenna, such as the antennas in beyond-the-horizon microwave links, and the gain that can be realized in operation. 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. ( 188 )

English Related Words* a dead loss

* absolute total loss

* absorbing medium

* absorption loss

* accumulated profit or loss

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* active laser medium

* actual total loss

* adjustable friction coupling

* advertising medium

* alternating current coupling

* angle of loss

* angular aperture

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* anode aperture