TY - JOUR
T1 - Dual-Band Fresnel Zone Plate Antenna with Independently Steerable Beams
AU - Li, Huan
AU - Ma, Chao
AU - Ye, Dexin
AU - Sun, Yongzhi
AU - Zhu, Weiqiang
AU - Li, Changzhi
AU - Ran, Lixin
PY - 2018/4
Y1 - 2018/4
N2 - Fresnel zone plate (FZP) antennas can implement steerable beams based on reconfigurable binary-amplitude diffractive patterns. Because of this unique characteristic, FZP antennas have concise architectures compared with phased array systems. So far, FZP antennas can only support a single frequency band. This is because only one diffractive pattern can exist on the aperture at a given time. In this communication, we demonstrate a dual-band FZP antenna with two independent coexistent diffractive patterns. Implemented based on multiple pairs of electrically induced opacity and transparency, such diffractive patterns can be independently configured by binary direct current (dc) voltages. Simulation and experimental results validated the theoretical analysis. The proposed method can be extended to obtain triple-band FZP antennas, playing important roles in a wide range of potential applications.
AB - Fresnel zone plate (FZP) antennas can implement steerable beams based on reconfigurable binary-amplitude diffractive patterns. Because of this unique characteristic, FZP antennas have concise architectures compared with phased array systems. So far, FZP antennas can only support a single frequency band. This is because only one diffractive pattern can exist on the aperture at a given time. In this communication, we demonstrate a dual-band FZP antenna with two independent coexistent diffractive patterns. Implemented based on multiple pairs of electrically induced opacity and transparency, such diffractive patterns can be independently configured by binary direct current (dc) voltages. Simulation and experimental results validated the theoretical analysis. The proposed method can be extended to obtain triple-band FZP antennas, playing important roles in a wide range of potential applications.
KW - Active metasurface
KW - Fresnel zone plate (FZP)
KW - diffractive antenna
KW - electrically induced transparency (EIT)
UR - http://www.scopus.com/inward/record.url?scp=85041832056&partnerID=8YFLogxK
U2 - 10.1109/TAP.2018.2804761
DO - 10.1109/TAP.2018.2804761
M3 - Article
AN - SCOPUS:85041832056
VL - 66
SP - 2113
EP - 2118
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
SN - 0018-926X
IS - 4
ER -