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Line 5: ==Example== Consider a number of small apertures that are mutually adjacent to one another, so that they form a [[filled aperture array]]. Suppose that they are in orbit, beaming [[microwave]]s at a spot on the ground. Now, suppose you separate these (but keep them mutually phased) so as to synthesize a larger aperture (such as a [[radiotelescope]] array). The spot size on the ground is reduced in size proportionally to the diameter of the synthesized array (and hence the area is reduced proportionally to the diameter of the synthesized array squared), but the power density at the ground is unchanged. Thus:

Thinned-array curse: Difference between revisions