Title :
Near-field radiation characteristics of corrugated horns
Author :
Clarricoats, P.J.B. ; Olver, A.D. ; Saha, Prabir K.
Author_Institution :
Queen Mary College, Department of Electrical & Electronic Engineering, London, UK
Abstract :
The amplitude and phase patterns of corrugated feed horns are predicted in the near-field region by means of a spherical-mode-expansion method which has been previously applied only in the far field. Excellent agreement has been observed with experimental patterns, and typical results for horns with flare semiangles of 12° and 70° are described.
Keywords :
antenna feeders; guided electromagnetic wave propagation; waveguides; amplitude and phase patterns; antenna feeders; corrugated feed horns; microwave antennas; waveguides;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19710303
