Abstract
Abstract
An ultra-thin transmitarray (TA) working at 10 GHz with bandwidth of 1.15 GHz is proposed. The TA is designed by arranging two types of phase-shifting cells, with a thickness of only 2.8 mm (0.09 λ
0). The proposed focus TA has an obvious convergence effect for plane wave. It enhances the electric field intensity by 11.85 dB at the focus and can also transform the incident spherical wave into the plane wave. When a substrate cylinder antenna is loaded with the proposed TA, it reaches a peak gain of 17.8 dBi (increased by 8.8 dB) and its half-power beamwidth is reduced from 84° to 11°. The TA is fabricated and measured. The measured results are highly consistent with the simulated results, which validates the good performance of the TA.
Funder
Technology Program of Shenzhen
National Natural Science Foundations of China
National Key Research and Development Program of China
Subject
Surfaces, Coatings and Films,Acoustics and Ultrasonics,Condensed Matter Physics,Electronic, Optical and Magnetic Materials