Title :
On one approach to creation of dual-band hard horn
Author_Institution :
Joint-Stock Co. "Radiophyzika", Moscow, Russia
Abstract :
A circular waveguide with longitudinally corrugated wall, in which the grooves are filled with dielectric of alternating epsilon, is considered. The dispersion equation for determining the eigenmode parameters is derived under the assumption of small corrugation period. The waveguide is shown to support the quasi-TEM modes at two different frequencies corresponding to the groove filling at which the hard wall condition is realized. The features of the TEM mode fields are revealed and discussed from the viewpoint of creation of the dual-band hard horn.
Keywords :
circular waveguides; conical antennas; dielectric-loaded waveguides; horn antennas; multifrequency antennas; TEM mode fields; circular waveguide; conical horns; corrugated structures; corrugation period; dispersion equation; dual-band hard horn; eigenmode parameters; groove filling; longitudinally corrugated wall; quasiTEM modes; Corrugated surfaces; Dielectrics; Dual band; Equations; Feeds; Filling; Frequency; Permittivity; Surface waves; Waveguide components;
Conference_Titel :
Antenna Theory and Techniques, 2005. 5th International Conference on
Print_ISBN :
0-7803-9261-2
DOI :
10.1109/ICATT.2005.1496923
