BALANCED BACKFIRE ZIGZAG ANTENNAS.

Abstract

Linearly polarized backfire antennas are described which have high front-to-back ratio and very low sidelobes. The backfire radiation is produced from a meandering conductor. The principal directional characteristics can be determined by using linear array theory. When the conductor is periodic this can be related to a series expansion of the fields in space harmonics. The radiation properties of periodic backfire zigzags are compared to the end-fire type previously reported. Bandwidth limitations on the backfire periodic zigzags are readily extended by tapering the structure to produce a log-periodic antenna. Measured patterns and impedance of several log-periodic zigzag antennas illustrate how the performance is related to that of the periodic structures. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1964
Accession Number
AD0607423

Entities

People

  • Paul E. Mayes

Organizations

  • University of Illinois Urbana–Champaign

Tags

DTIC Thesaurus Topics

  • Antenna Radiation Patterns
  • Antennas
  • Arrays
  • Backfire Antennas
  • Bandwidth
  • Directional
  • Harmonics
  • Impedance
  • Linear Arrays
  • Log Periodic Antennas
  • Radiation
  • Sidelobes

Readers

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

Technology Areas

  • Space