Title :
Waveguide-fed parallel plate slot array antenna
Author :
Hirokawa, Jiro ; Ando, Makoto ; Goto, Naohisa
Author_Institution :
Dept. of Electr. & Electron Eng., Tokyo Inst. of Technol., Japan
fDate :
2/1/1992 12:00:00 AM
Abstract :
A novel planar antenna in which radiating slots are arrayed on one side of a square parallel plate waveguide and coupling slots occupy the other side is proposed. The antenna is excited via the coupling slots by a rectangular waveguide. In order to suppress unwanted reflections and to assure the purity of the transverse electromagnetic traveling-wave mode in the parallel plate waveguide, all the slots are arrayed in pairs. An X-band model antenna was fabricated, and uniform aperture illumination was demonstrated with 48% antenna efficiency. These results demonstrate the feasibility of antennas of this type
Keywords :
antenna feeders; antenna radiation patterns; antenna travelling wave arrays; microwave antenna arrays; waveguide antennas; 48 percent; TEM mode; X-band model antenna; coupling slots; efficiency; planar antenna; radiating slots; rectangular waveguide; slot array antenna; square parallel plate waveguide; transverse electromagnetic traveling-wave mode; uniform aperture illumination; waveguide-fed antenna; Antenna arrays; Aperture antennas; Electromagnetic radiation; Electromagnetic reflection; Electromagnetic scattering; Electromagnetic waveguides; Planar arrays; Planar waveguides; Rectangular waveguides; Slot antennas;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
