HF WIRE ANTENNAS OVER REAL GROUND: COMPUTER SIMULATION AND MEASUREMENT

Authors
  1. Belrose, J.S.
  2. Royer, G.M.
  3. Petrie, L.E.
Corporate Authors
Communications Research Centre, Ottawa ONT (CAN);Petrie Telecommunications Ltd, Ottawa ONT (CAN)
Abstract
This lecture is based on the considerable combined experience of the authors with numerical and experimental modelling, with fabricating, with measuring performance of and with using practical HF antennas for the low HF band (2-8 MHz). The antenna poses a particularly difficult problem for this frequency band, particularly if one wants broad-band antenna for frequency agile systems, because of the four-to-one change in wavelength over the band. A further complication is that as the frequency is reduced so is the electrical height of the antenna above the ground, and since the ground is an imperfect conductor, the finite conductivity of the ground introduces loss of gain, and detuning. We have been particularly concerned with antennas at low (electrical) heights, even with antennas very near to or actually lying on the ground. TRUNCATED
Report Number
AGARD-LS-165-PAP-6 — @Paper presented October 1989 in Turkey, Portugal and UK as part of the AGARD sponsored Lecture Series; CONTAINED IN 90-00379
Date of publication
15 Sep 1989
Number of Pages
30
DSTKIM No
90-00374
CANDIS No
62652
Format(s):
Originator's fiche received by DSIS

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