Closer look at mosaic reflectarray antennas

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...

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Bibliographic Details
Published in:Electronics letters 2015-03, Vol.51 (6), p.437-438
Main Authors: Ethier, J.L.T, McNamara, D.A, Chaharmir, M.R, Shaker, J
Format: Article
Language:English
Subjects:
antenna radiation patterns
Antennas and propagation
design engineering
far‐field pattern performance
fragmented elements
image reproduction
image sampling
image segmentation
mosaic reflectarray antennas
optical mosaic image
reflectarray antennas
sampling density advantages
subwavelength spaced elements
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Summary: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.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2014.4344