Title :
Low sidelobe single-layer slotted waveguide arrays at 76 GHz band
Author :
Kimura, Y. ; Hirokawa, J. ; Ando, M.
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Japan
Abstract :
This paper presents a low sidelobe single-layer slotted waveguide array for car radar systems at the 76 GHz band. Both the array of the /spl pi/-junctions and that of the slot array are designed to realize the two-dimensional Taylor distribution. A target for the side-lobe level is -25 dB. Good radiation patterns with side-lobes below -24 dB are confirmed by the measurements in both E- and H-plane. High-gain and high efficiency of no lower than 34.5 dBi and 50% are preserved.
Keywords :
antenna radiation patterns; millimetre wave antenna arrays; planar antenna arrays; radar antennas; road vehicle radar; /spl pi/-junctions; 2D Taylor distribution; 35 dB; 58 percent; 76 GHz; E-plane measurements; EHF; H-pane measurements; car radar systems; high efficiency antenna; high-gain antenna; low sidelobe waveguide arrays; planar antennas; radiation patterns; side-lobe level; single-layer slotted waveguide arrays; two-dimensional Taylor distribution; Apertures; Automotive engineering; Feeds; Frequency; Hollow waveguides; Microstrip antenna arrays; Millimeter wave radar; Millimeter wave technology; Planar arrays; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.873717
