%0 Journal Article %D 2002 %I Begell House %N 4 %P 8 %R 10.1615/TelecomRadEng.v57.i4.50 %T A Technique for Synthesizing Circular Apertures with a Prescribed Radial Distribution of the Field in the Fresnel Zone %U https://www.dl.begellhouse.com/journals/0632a9d54950b268,5f37389b56aa78ad,5e80c5d70993e300.html %V 57 %X A technique is presented for synthesizing circular focused apertures to provide a given radial field distribution in the Fresnel zone, along an arbitrary direction. The synthesis is effectuated through minimizing a quadratic functional equal to the sum of squared errors in the function describing the given radial field distribution along a selected direction and in the given angular pattern. The potential of the suggested technique is illustrated by an example synthesis. A comparison is made with the result for the case of limitations on the amplitude and phase distribution norm. %8 2002-04-01