Title :
Waveguide-slot antenna with longitudinal dielectric slab retarding system
Author :
Blinova, N.K. ; Lyakhovsky, A.A. ; Yatsuk, L.P. ; Katrich, V.A.
Author_Institution :
V.N. Karazin Kharkov Nat. Univ., Ukraine
Abstract :
The radiation and directional properties of a system with longitudinal slots in a rectangular waveguide having a longitudinal dielectric slab inside are examined. It is shown that the system´s operational frequency band is wider then that of a hollow waveguide configuration. However, the main beam radiation pattern is wider and the side lobes have a higher level. Nevertheless, the gain of the antenna with dielectric is 1.5-2 times higher at maximum frequencies than that for the hollow waveguide.
Keywords :
antenna radiation patterns; dielectric-loaded antennas; slot antennas; 9.375 GHz; antenna gain; beam radiation pattern; hollow waveguide; longitudinal dielectric slab retarding system; longitudinal slots; radiation properties; rectangular waveguide; waveguide-slot antenna; DH-HEMTs; Dielectrics; Frequency dependence; Hafnium oxide; Hidden Markov models; IEEE catalog; Slabs;
Conference_Titel :
Microwave and Telecommunication Technology, 2004. CriMico 2004. 2004 14th International Crimean Conference on
Print_ISBN :
966-7968-69-3
DOI :
10.1109/CRMICO.2004.183237
