Accession Number : AD0660807

Title :   THE EFFECT OF A FOREGROUND RIDGE ON THE GAIN AND PATTERN OF AN ANTENNA.

Descriptive Note : Physical sciences research papers no. 338,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Schell,Allen C. ; Strom,John A.

Report Date : AUG 1967

Pagination or Media Count : 24

Abstract : Using a simplified antenna model on a ground plane and various sizes and types of ridges, the effects of a ridge obstruction in the foreground of a directive antenna have been investigated in a series of experiments at X band. Curves of the effects of a ridge at distances of 5 wavelengths to 80 wavelengths are given. Equations for the pattern of an antenna and lossy ridge are derived. The calculated patterns show good agreement with the measured results. (Author)

Descriptors :   (*ANTENNA RADIATION PATTERNS, TERRAIN), GAIN, X BAND, ANTENNAS, MODEL TESTS, DISTORTION, SITE SELECTION, PERFORMANCE(ENGINEERING)

Subject Categories : Electrical and Electronic Equipment
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE