A study has been carried out to evaluate the shielding effectiveness of a knife-edge ridge situated in the near-field region of a large-diameter antenna, and examples of the computed results are presented in graphical form. In addition an approximate formula, of accuracy within 3 dB under specified conditions, is also presented. A flat-Earth profile is assumed, and the effects of rounding of the diffracting edge and of vegetation are excluded.
No takes yet. Share an insight, caveat, or question.
Streete et al. (1974) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: