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Single-layer reflectarray antennas with improved bandwidth by attaching phase-delay lines

Abstracts

A novel X-band unit cell structure with improved bandwidth performance for single-layer microstrip reflectarray antenna is proposed. The new element structure consists of two circular rings, each with a pair of gaps, and two phase-delay lines are attached to the outer ring to provide the required phase shift. A 9? center-fed reflectarray antenna operating at 10 GHz is designed to validate the broadband performance of the proposed unit cell. Simulated results show 20% 1-dB gain bandwidth and 38.5% 3-dB gain bandwidth. The maximum gain at 10 GHz is 20.1 dB, which is equivalent to 40 % efficiency.
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Journal:2016 10th European Conference on Antennas and Propagation, EuCAP 2016
Recommended references: Han, Chunhui,Zhang, Yunhua,Yang, Qingshan.(2017).Single-layer reflectarray antennas with improved bandwidth by attaching phase-delay lines.2016 10th European Conference on Antennas and Propagation, EuCAP 2016.[ChinaXiv:201703.00303] (Click&Copy)
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[V1] 2017-03-10 11:31:19 chinaXiv:201703.00303V1 Download
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