Title :
A waveguide-fed parallel plate slot array antenna
Author :
Hirokawa, J. ; Miyagawa, T. ; Ando, M. ; Goto, N.
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Japan
Abstract :
The authors propose an array in which a plane TEM (transverse electromagnetic) wave is excited in a parallel plate waveguide by a rectangular waveguide through feed slots cut in a back conductor. Its radiating part consists of an upper conductor plate in which a slot pattern has been etched. The configuration is suitable for linear polarization and dual-polarization use. The concept of a slot pair is adopted to suppress reflection and to maintain traveling wave antenna operation, which is confirmed by experiments. TEM plane wave excitation in the parallel plate waveguide has been confirmed, and the uniform aperture field distribution has been realized at the design frequency.<>
Keywords :
antenna feeders; microwave antenna arrays; rectangular waveguides; slot antennas; TEM plane wave excitation; back conductor; design frequency; dual-polarization; feed slots; linear polarization; parallel plate slot array antenna; parallel plate waveguide; rectangular waveguide; slot pair; traveling wave antenna; uniform aperture field distribution; upper conductor plate; waveguide fed antenna; Antenna arrays; Conductors; Electromagnetic radiation; Electromagnetic scattering; Electromagnetic waveguides; Etching; Feeds; Planar waveguides; Rectangular waveguides; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221611
