Design of Dual-Polarized Reflectarray for Near-Field Shaped Focusing

This letter presents a design of reflectarray for near-field (NF) shaped focusing, and a synthesis method is proposed to generate desired shaped pattern in the NF zone. The orthogonally arranged tridipoles structure is used to realize the dual-polarized reflectarray. The unit cell has continuous ref...

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Veröffentlicht in:IEEE antennas and wireless propagation letters 2021-05, Vol.20 (5), p.803-807
Hauptverfasser: Yu, Shixing, Kou, Na, Ding, Zhao, Zhang, Zhengping
Format: Artikel
Sprache:eng
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Zusammenfassung:This letter presents a design of reflectarray for near-field (NF) shaped focusing, and a synthesis method is proposed to generate desired shaped pattern in the NF zone. The orthogonally arranged tridipoles structure is used to realize the dual-polarized reflectarray. The unit cell has continuous reflection phase-shift ranges (more than 360°) under x -polarized and y -polarized incident E-fields. A sample reflectarray generating dual-polarized focused patterns is presented to validate the design. Experimental results show that the horizontal component of E-field has the shaped pattern of letter "X," and the vertical component of E-field owns the shaped pattern of letter "Y." Besides, the measured results are in good agreement with the theoretical analyses.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2021.3063848