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This letter presents a wideband 1-bit reconfigurable reflectarray (RRA) with significantly enhanced 1-dB gain bandwidth for C-band applications. The improved performance stems from a novel wideband aperture-coupled magnetoelectric (ME) dipole unit cell (UC), enabling a 35% bandwidth with a phase shift of 180^ 20^, and an optimized phase distribution across the operating frequency band. The proposed RRA demonstrates a 1-dB gain bandwidth of 28. 5% and a peak aperture efficiency of 21. 2%. A rear-mounted control board further simplifies bias line routing and supports scalable array expansion.
Nguyen et al. (Thu,) studied this question.
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