On the design of Chebyshev endfire arrays subject to a performance index

Dimitrios G. Babas, John N. Sahalos

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A numerical method for the optimization of Chebyshev endfire antenna arrays, under a nonlinear constraint, is presented. Starting from a set of initial parameters (number of elements, equidistance, side lobe level, half-power beamwidth) we proceed to the design procedure subject to a desired value of a performance index. The method is based on the least squares technique where the constraint is applied through a Lagrangian multiplier. The resulting Chebyshev-like pattern fulfills the constraint whereas it loses the initial characteristic of equal side lobes. The presented method is applied for radiation efficiency and quality factor indices and gives remarkable results for different Chebyshev arrays.

Original languageEnglish
Pages (from-to)155-160
Number of pages6
JournalElectrical Engineering
Volume90
Issue number2
DOIs
Publication statusPublished - Dec 2007

Keywords

  • Chebyshev antenna array
  • Least squares technique
  • Optimization method
  • Quality factor
  • Radiation efficiency

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