Invention Grant
US08724219B1 Apparatus and method for producing an annular composite far-field patterned beam(s) 有权
用于制造环形复合远场图案束的装置和方法

Apparatus and method for producing an annular composite far-field patterned beam(s)
Abstract:
Method and apparatus to generate a composite far field beam having a central null and discrete cylindrical symmetry. A phased array of Gaussian beams was used to form an annular far-field pattern as opposed to the normal peaked pattern in most phased arrays. This annular pattern arises from the radial symmetry of the polarization in each beam. Beams opposite one another in the annulus are polarized in the same direction but are 180° out of phase. This causes the center portion of the beam to be a null rather than a peak.
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