A LIMITED COMPARISON OF PREDICTED AND MEASURED RESULTS FOR AN HF GROUND- ARRAYED LOG PERIODIC DIPOLE ARRAY

摘要

Measurements of the in-situ radiation pattern of a full scale horizontally polarised HF log periodic antenna are compared with predicted results from two different computer programs. The limited results suggest that more attention should be paid to ground effects at low take-off angles. While the predicted results are in good agreement with each other for take-off angles below the peak of the pattern, they tend to diverge above the peak. [Vol. 5, No. 1, pp. 25-38 (l990)]