| Definition: | shaped-beam antenna designed in such a way that, when its beam intersects a given surface, the lines of equal power flux density incident upon the surface form specified contours
Note 1 to entry: For a satellite antenna, the area on the surface of the Earth within which the antenna gain is at least equal to a specified value, usually 3 dB, relative to its maximum gain is called “footprint of the beam” (see IEV 725-13-04).
|