Title :
Radiation pattern of leaky-wave antenna based on partially-filled rectangular waveguide
Author :
Abdullin, R.R. ; Mitelman, Y.E. ; Shabunin, S.N.
Author_Institution :
Inst. of Radioelectron. & Informational Technol., Ural Fed. Univ. named after the first President of Russia B.N.Yeltsin, Yekaterinburg, Russia
Abstract :
A leaky-wave antenna based on a rectangular waveguide with partially dielectric filling and transverse slots is investigated. A velocity factor dependencies for uniform filling and different slot lengths are presented. Also, dielectric layer thickness variations are considered. The influence of the dielectric layer position in the waveguide on the antenna characteristics is estimated. The radiation pattern is analyzed. A pattern tilt angle, an optimal antenna length and a first null beamwidth are defined.
Keywords :
antenna radiation patterns; dielectric waveguides; leaky wave antennas; rectangular waveguides; slot antennas; dielectric layer thickness variation; leaky wave antenna radiation pattern; null beamwidth; partially dielectric filled rectangular waveguide; pattern tilt angle; transverse slot; velocity factor; Antenna radiation patterns; Dielectrics; Filling; Leaky wave antennas; Rectangular waveguides; Waveguide components; dielectric filling; leaky wave antenna; radiation pattern; rectangular waveguide; velocity factor; wavenumber;
Conference_Titel :
Antennas and Propagation Conference (LAPC), 2014 Loughborough
Conference_Location :
Loughborough
DOI :
10.1109/LAPC.2014.6996438
