End-Fire Radiation from Planar and Large Cylindrical Arrays

Abstract

Endfire radiation in planar finite arrays of circular apertures in apertures in triangular arrangement is investigated by using a technique consisting of using the results obtained via the usual infinite array model as a zeroth order approximation of a perturbation procedure. It is shown that finite arrays can be scanned up to 90 degrees from broadside, still retaining substantial radiation. The endfire radiation can be enhanced through an appropriate design of the element feed network. With minor modifications the method can be simply applied to the approximate investigation of the radiation of an array on a cylinder (having a large radius in terms of wave-lengths) in the axial direction.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1971
Accession Number
AD0729686

Entities

People

  • Giorgio V. Borgiotti
  • Quirino Balzano

Organizations

  • RTX

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Arrays
  • Classification
  • Contracts
  • Dielectrics
  • Equations
  • Excitation
  • Massachusetts
  • Physics Laboratories
  • Radiation
  • Radiation Patterns
  • Recognition
  • Security
  • Transmission Lines
  • United States
  • Waveguides

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Image Processing and Computer Vision.