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Sequential phase feeding algorithm with minimal beam pointing error for centrosymmetric planar array antenna
Author(s) -
Zhang Renli,
Wu Yixin,
Bian Ziyi,
Sheng Weixing
Publication year - 2020
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.22241
Subject(s) - phased array , planar , beam (structure) , antenna (radio) , beam steering , planar array , phase (matter) , computer science , algorithm , optics , antenna array , electronic engineering , physics , telecommunications , engineering , computer graphics (images) , quantum mechanics
Phased array antennas using digital phase shifters for beam steering are characterized by beam pointing error. This study proposes a sequential phase feeding algorithm (SPFA) with minimal beam pointing error for a centrosymmetric planar array antenna. The theoretical expression of a beam pointing error caused by phase quantification error is derived. On the basis of the derivation results, the phase shift of each element is sequentially quantified through truncating or carrying to achieve a smaller beam pointing error. The proposed algorithm improves the beam pointing accuracy of the centrosymmetric planar array antenna, and the computational load is acceptable. Simulation results verify the effectiveness of SPFA.