Title :
Velocity factor 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., Yekaterinburg, Russia
Abstract :
A Leaky-wave antenna based on a covered rectangular waveguide with partially dielectric filling and transverse slots is investigated. The complex propagation constant is defined by matching of magnetic field in slots. A velocity factor dependences on the waveguide filling parameters are presented. The influence of the dielectric position in the waveguide on the antenna characteristics is considered. The radiation pattern is analyzed. A pattern tilt angle, an optimal antenna length and a first null beamwidth are defined.
Keywords :
antenna radiation patterns; leaky wave antennas; magnetic fields; slot antennas; waveguide antennas; antenna characteristics; leaky-wave antenna; magnetic field matching; optimal antenna length; partially dielectric filling slots; partially filled rectangular waveguide; pattern tilt angle; radiation pattern; transverse slots; velocity factor; velocity factor dependences; waveguide filling parameters; Antenna radiation patterns; Dielectrics; Filling; Leaky wave antennas; Rectangular waveguides; Waveguide components; leaky wave antenna; radiation pattern; rectangular waveguide; velocity factor;
Conference_Titel :
Actual Problems of Electronics Instrument Engineering (APEIE), 2014 12th International Conference on
Conference_Location :
Novosibirsk
Print_ISBN :
978-1-4799-6019-4
DOI :
10.1109/APEIE.2014.7040929
