Title :
Analysis of near-field radiation from an open-ended rectangular waveguide
Author :
Gorobets, N.N. ; Shishkova, A.V.
Author_Institution :
Kharkov Nat. Univ.
Abstract :
On the basis of Hertz´s potentials technique the radiation characteristics in near and intermediate zones of single mode and oversize rectangular waveguides have been investigated. The bounds of far-field zone have been determined for small in comparison with wavelength waveguide radiators. For these small radiators the classical expressions for far-zone can be applied. The influence of the effects of electromagnetic mode reflection and transformation at the antenna aperture on radiation characteristics in near-zone has been analyzed
Keywords :
antenna radiation patterns; aperture antennas; electromagnetic wave reflection; rectangular waveguides; waveguide antennas; waveguide theory; Hertz potential technique; antenna aperture; electromagnetic mode reflection-transformation; far-field zone; intermediate zone; near-field radiation; open-ended rectangular waveguide; Antennas and propagation; Aperture antennas; Dipole antennas; Directive antennas; Electromagnetic radiation; Electromagnetic waveguides; Frequency; Near-field radiation pattern; Rectangular waveguides; Ultra wideband antennas;
Conference_Titel :
Ultrawideband and Ultrashort Impulse Signals, 2004 Second International Workshop
Conference_Location :
Sevastopol
Print_ISBN :
0-7803-8673-6
DOI :
10.1109/UWBUS.2004.1388108
