Title :
Closer look at mosaic reflectarray antennas
Author :
Ethier, J.L.T. ; McNamara, D.A. ; Chaharmir, M.R. ; Shaker, J.
Author_Institution :
EECS, Univ. of Ottawa, Ottawa, ON, Canada
Abstract :
Justification for the use of fragmented elements in the design of mosaic reflectarrays is provided whereby the far-field pattern performance is shown to be good in spite of the optical mosaic image, and this fact is confirmed for an additional test case of a synthesised image. Additionally, the use of sub-wavelength spaced elements, as opposed to the traditional half-wavelength spaced elements, is strongly motivated by sampling density advantages for image reproduction.
Keywords :
antenna radiation patterns; design engineering; image sampling; image segmentation; reflectarray antennas; far-field pattern performance; fragmented elements; image reproduction; mosaic reflectarray antennas; optical mosaic image; sampling density advantages; subwavelength spaced elements;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2014.4344
