THE USE OF MULTIPLE-ELEMENT BEVERAGE ANTENNA ARRAYS FOR HF TRANSMISSION

Authors
  1. Moss, G.E.
  2. Muirhead, N.
  3. Jenkins, R.W.
Corporate Authors
Communications Research Centre, Ottawa ONT (CAN)
Abstract
The potential of multiple-element Beverage arrays for HF transmissions has been explored, and practical techniques of power division, antenna coupling, and grounding developed. The effect of interactions between elements, which limits the efficiency achievable by such arrays, has been determined for element heights of the order of 2m. The gains observed for an experimental array, as a function of frequency, elevation, and azimuth, were found to agree with that predicted theoretically, except at elevation angles above the pattern maxima; this discrepancy may be explainable in terms of a multi-layered earth which was not considered by the theory. It is found that the Beverage antenna array presents an inexpensive alternative for both transmitting and receiving, on long-range point-to-point communications circuits. An example of a transmitting Beverage array developed for such application is presented; recommendations for the design and implementation of such arrays are given.
Report Number
1318 —
Date of publication
15 Jul 1978
Number of Pages
32
DSTKIM No
78-03029
CANDIS No
83711
Format(s):
Document Image stored on Optical Disk;Originator's fiche received by DSIS

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