TY - GEN
T1 - On the Design of Low Sidelobe Reflectarray with Enhanced Bandwidth at Ku-band
AU - Niaz, Muhammad Wasif
AU - Yin, Yingzeng
AU - Zheng, Shufeng
AU - Chen, Jingdong
N1 - Publisher Copyright:
© 2019 European Association on Antennas and Propagation.
PY - 2019/3
Y1 - 2019/3
N2 - A low sidelobe reflectarray with enhanced bandwidth is designed in this paper. Low sidelobes are achieved by using a logarithmic spiral lattice for placement of unit cells on the reflectarray aperture. The unit cell is made up of a circular ring enclosing a rounded I-shaped dipole, which gives a smooth phase versus frequency response. The size of unit cells is much smaller than λo/2, which results in a large number of unit cells on the reflectarray aperture and an increased overall efficiency of the reflelctarray. A 665-element reflectarray is designed and simulated, which gives a 1-dB gain bandwidth of 7.5% and -20-dB sidelobe level (SLL) bandwidth of 6.25% with a 60% aperture efficiency at 16 GHz.
AB - A low sidelobe reflectarray with enhanced bandwidth is designed in this paper. Low sidelobes are achieved by using a logarithmic spiral lattice for placement of unit cells on the reflectarray aperture. The unit cell is made up of a circular ring enclosing a rounded I-shaped dipole, which gives a smooth phase versus frequency response. The size of unit cells is much smaller than λo/2, which results in a large number of unit cells on the reflectarray aperture and an increased overall efficiency of the reflelctarray. A 665-element reflectarray is designed and simulated, which gives a 1-dB gain bandwidth of 7.5% and -20-dB sidelobe level (SLL) bandwidth of 6.25% with a 60% aperture efficiency at 16 GHz.
KW - Aperiodic reflectarray
KW - broadband reflectarray
KW - high-efficiency reflectarray
KW - logarithmic spiral lattice
KW - low sidelobe reflectarray
UR - https://www.scopus.com/pages/publications/85068481015
M3 - 会议稿件
AN - SCOPUS:85068481015
T3 - 13th European Conference on Antennas and Propagation, EuCAP 2019
BT - 13th European Conference on Antennas and Propagation, EuCAP 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 13th European Conference on Antennas and Propagation, EuCAP 2019
Y2 - 31 March 2019 through 5 April 2019
ER -