Title :
Parametric analysis of the pyramidal horn partially filled
Author :
Vital, D.S. ; Descardeci, J.R.
Author_Institution :
Departament of Electr. Eng., Univ. Fed. do Parana, Curitiba, Brazil
Abstract :
A hybrid-mode pyramidal horn is analyzed theoretically. The pyramidal horns is partially filled with a dielectric slab of electric permittivity εr. The parametric study was developed in order to verify the influence of the electric permittivity of the slab on the maximum cross-polar level of the radiation pattern. The results obtained shows an improvement of approximately 30 dB in the maximum cross-polar level in comparison with the empty case and a good performance for these levels on a wide frequency band considering the hybrid mode LSE10, dominant in the structure.
Keywords :
antenna radiation patterns; dielectric-loaded waveguides; electromagnetic wave polarisation; horn antennas; permittivity; rectangular waveguides; dielectric slab; electric permittivity; frequency band; hybrid mode; hybrid-mode pyramidal horns; maximum cross-polar level; parametric analysis; partially filled pyramidal horn; radiation pattern; rectangular waveguide; Dielectrics; Electromagnetic waveguides; Electrooptical waveguides; Feeds; Fourier transforms; Frequency; Geometry; Permittivity; Rectangular waveguides; Waveguide components;
Conference_Titel :
Microwaves, Radar and Wireless Communications, 2002. MIKON-2002. 14th International Conference on
Print_ISBN :
83-906662-5-1
DOI :
10.1109/MIKON.2002.1017990
