Tapered Direct Fed Quadrifilar Helix Antenna

Abstract

A quadrifilar helical antenna is provided having a feedpoint for the antenna connecting to individual helical antenna elements. Each antenna element tapers from a maximum width at the feedpoint to a minimum width. The tapered antenna elements provide impedance transformation. The antenna produces a cardioid pattern that corresponds to antennas with constant width antenna elements.

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Document Details

Document Type
Technical Report
Publication Date
Jun 23, 2000
Accession Number
ADD019805

Entities

People

  • Michael J. Josypenko

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Advanced Electronics
  • Ground and Sea Platforms
  • Space

DTIC Thesaurus Topics

  • Antennas
  • Artificial Satellites
  • Bandwidth
  • Circular Polarization
  • Directional Antennas
  • Frequency
  • Frequency Bands
  • Helical Antennas
  • Inventions
  • Materials
  • Networks
  • Omnidirectional Antennas
  • Radiation Patterns
  • Standards
  • Transmission Lines
  • United States
  • Weight

Fields of Study

  • Engineering

Readers

  • Phased Array Antenna Design.