INVESTIGATIONS OF FLUSH-MOUNTED ANTENNAS

Abstract

The principle investigation concerned the farfield effects of a planar system of transverse metallic barriers of minimal height on waves emergent from moderately directive, low-silhouette feed structure. Comparison of measured far-field patterns was made for a number of cases involving both constant and variable barrier spacing. A comparison of representative measured gain values for a metallic barrier structure of large extent with those for a single horizontal reflecting plane was made. Results for cases approximating arithmetic variation of barrier spacing using 3 rates of increase with distance from the feed aperture indicate that the number of barriers for optimum effect is determined by a requisite value of spacing near the feed and a fixed upper limit of spacing associated with spurious grating effects. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 31, 1961
Accession Number
AD0274783

Entities

People

  • B.r. Gross
  • D.m. Bowie

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Antennas
  • Arithmetic
  • Directives
  • Far Field
  • Silhouettes
  • Slot Antennas
  • Transverse

Readers

  • Explosive Engineering.
  • Phased Array Antenna Design.
  • Regression Analysis.

Technology Areas

  • Space