Title :
A low-profile single-layer leaky wave slotted waveguide array for mobile DBS reception
Author :
Hirokawa, J. ; Ando, M. ; Goto, N. ; Takahashi, N. ; Ojima, T. ; Uematsu, M.
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Japan
fDate :
June 28 1993-July 2 1993
Abstract :
The authors propose a low-profile single-layer leaky-wave slotted waveguide array for mobile DBS (direct broadcasting satellite) reception, which is specially designed for a portable TV set. The 52/spl deg/ beam-tilted model antennas with a size of 25 cm by 20 cm and a height of 0.5 cm have been designed and fabricated. The efficiency is 66% in the peak and more than 57% in DBS band. A good axial ratio of 1.0 dB in the main-beam direction and small reflection at the feed point below -17 dB in DBS band have been obtained. The gain is about 24 dBi, which is sufficient for a portable TV set with a liquid-crystal screen.<>
Keywords :
direct broadcasting by satellite; leaky wave antennas; mobile antennas; mobile satellite communication; receiving antennas; slot antenna arrays; television antennas; 24 dB; 57 to 66 percent; axial ratio; direct broadcasting satellite; efficienc; gain; mobile DBS reception; portable TV set; single-layer leaky-wave slotted waveguide array; Broadcast technology; Circuits; Feeds; Frequency; Mobile antennas; Moment methods; Reflection; Satellite broadcasting; Steel; Waveguide junctions;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385385
