Annular Slots with Cardioid-Type Patterns.

Abstract

This report considers the radiation pattern from one or more concentric circular loops. The current on each loop is comprised of components of the form sin n(phi). It is shown how directive patterns with one and more nulls can be obtained in particularly a true cardioid pattern. Particular attention is given to the tolerances in order to maintain a reasonable sharp null. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1980
Accession Number
ADA096277

Entities

People

  • B. A. Munk
  • Koichi Ayabe

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Amplitude
  • Antennas
  • Bessel Functions
  • Coefficients
  • Coordinate Systems
  • Electric Fields
  • Electromagnetic Fields
  • Equations
  • Frequency
  • Frequency Bands
  • Generators
  • Integral Equations
  • Loop Antennas
  • Magnetic Fields
  • Radiation
  • Radiation Patterns
  • Slot Antennas

Readers

  • Combustion and Flow Dynamics.
  • Phased Array Antenna Design.
  • Theoretical Analysis.