angle of radiation

angle of radiation

[′aŋ·gəl əv rād·ē′ā·shən]
(electromagnetism)
Angle between the surface of the earth and the center of the beam of energy radiated upward into the sky from a transmitting antenna. Also known as angle of departure.
References in periodicals archive ?
The researchers used an easy-to-see reference--the alignment of jets of radio waves emitted by many of the quasars and galaxies in their study--to measure the polarization angle of radiation.