Journal
ELECTRONICS LETTERS
Volume 43, Issue 3, Pages 148-149Publisher
INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/el:20073560
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The gain bandwidth of a microstrip reflectarray can be substantially improved by replacing the usual layer of near-resonant patches with a simple artificial impedance surface consisting of closely spaced electrically small patches on a grounded dielectric substrate. It is shown that this approach can lead to reflectarray gain bandwidths (1 dB) in excess of 20% with a single layer of printed elements.
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