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      Design of Nonperiodic Density Tapered Arrays with CVT Distributions

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          Abstract

          Density Tapered Arrays (DTA) with nonperiodic spaced elements have many interesting features when compared to traditional DTA in which antenna elements are located only at the intersections of periodic grid; however, a design method is yet to be fully develoed. A new approach is presented using Centroidal Voronoi Tessellations (CVT) to design DTA with nonperiodic element distributions proportional to the desired amplitude taper and with nonperiodic and ‘uniform’ properties. A 32.8λ diameter circular aperture array with 1656 elements is discussed and theoretical patterns are computed for density tapers modeled after −25 dB,−30 dB,−35 dB, and −40 dB circular Taylor distributions. The obtained sidelobe levels and aperture efficiency are better than heretofore reported.

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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 August 2014
          : 3
          : 4
          : 450-455
          Affiliations
          [1 ] The 27th Research Institute of China Electronics Technology Group Corporation
          Article
          a7efbcd039cd4de1b18ba10e2ec8faa0
          10.3724/SP.J.1300.2014.14001

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Categories
          Technology (General)
          T1-995

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