Title :
Beam focusing using 60 GHz Fabry-Perot resonators with uniform and non-uniform metal grids
Author :
Sauleau, R. ; Coquet, Ph ; Thouroude, D. ; Daniel, J.P.
Author_Institution :
Inst. d´´Electronique et de Telecommun. de Rennes (IETR), Rennes I Univ., France
fDate :
2/20/2003 12:00:00 AM
Abstract :
A new structure of millimetre-wave focusing antennas is presented. It consists of a plane-parallel Fabry-Perot resonator comprising two uniform and non-uniform inductive metal meshes excited by a horn antenna. The beam focusing is performed with the non-uniform mirror, the geometry of which is chosen so that it behaves as a spherical equiphase surface with a desired radius of curvature. The resulting radiation patterns are Gaussian; their directivity is controlled by the curvature of the synthesised wavefront. This concept is successfully validated in the 60 GHz band.
Keywords :
antenna radiation patterns; cavity resonators; focusing; horn antennas; millimetre wave antennas; mobile antennas; reflector antennas; 60 GHz; EHF; Gaussian radiation patterns; MM-wave Fabry-Perot resonators; beam shaping technique; directivity control; horn antenna; inductive metal meshes; millimetre-wave focusing antennas; mobile terminal antennas; nonuniform metal grids; nonuniform mirror; plane-parallel Fabry-Perot resonator; spherical equiphase surface; synthesised wavefront curvature; uniform metal grids;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030269
