Array Realizations of Complex-Source Beams

Abstract

The inverse source problem for the complex-source beam is formulated in terms of an array radiating in free space or radiating in front of an impenetrable conformal or impedance surface. The array elements are non-resonant radiators. The physical dimension of the array is typically smaller than the diameter of the branch-cut disk of the complex point source. The array excitation coefficients are determined by solving a matrix equation that enforces the condition that the array fields match the fields of the complex point source in the far zone. For conformal and impedance surfaces the additional condition of zero internal fields is imposed. The SVD provides a powerful tool for obtaining the best-behaved solution.

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Document Details

Document Type
Technical Report
Publication Date
Sep 04, 2018
Accession Number
AD1059707

Entities

People

  • Thorkild B. Hansen

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Antenna Radiation Patterns
  • Antennas
  • Bodies Of Revolution
  • Coefficients
  • Directives
  • Dynamic Range
  • Electromagnetic Fields
  • Far Field
  • Frequency
  • Frequency Domain
  • Near Field
  • Optical Lattices
  • Plane Waves
  • Scattering
  • Scientific Research
  • Spherical Waves
  • Time Dependence
  • Time Domain
  • Transducers

Fields of Study

  • Engineering
  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Linear Algebra
  • Phased Array Antenna Design.

Technology Areas

  • Space