Loss reduction in reflectarray designs using sub-wavelength coupled-resonant elements
J Ethier, MR Chaharmir, J Shaker - IEEE transactions on …, 2012 - ieeexplore.ieee.org
J Ethier, MR Chaharmir, J Shaker
IEEE transactions on antennas and propagation, 2012•ieeexplore.ieee.orgA novel design approach is proposed for designing high performance reflectarrays using
low-cost, lossy substrates. Using sub-wavelength coupled-resonant elements, in particular
sub-wavelength loops, one can dramatically reduce losses in reflectarrays and not incur
significant gain drop due to the use of the lossy, low-cost substrate. It is further shown that
the sub-wavelength loop achieves sufficient phase variation in a single layer design with a
modest requirement in etching tolerance, making the loop superior to both the single and …
low-cost, lossy substrates. Using sub-wavelength coupled-resonant elements, in particular
sub-wavelength loops, one can dramatically reduce losses in reflectarrays and not incur
significant gain drop due to the use of the lossy, low-cost substrate. It is further shown that
the sub-wavelength loop achieves sufficient phase variation in a single layer design with a
modest requirement in etching tolerance, making the loop superior to both the single and …
A novel design approach is proposed for designing high performance reflectarrays using low-cost, lossy substrates. Using sub-wavelength coupled-resonant elements, in particular sub-wavelength loops, one can dramatically reduce losses in reflectarrays and not incur significant gain drop due to the use of the lossy, low-cost substrate. It is further shown that the sub-wavelength loop achieves sufficient phase variation in a single layer design with a modest requirement in etching tolerance, making the loop superior to both the single and double-layer sub-wavelength patch elements.
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