%0 Journal Article
%T 基于3D打印的全介质宽带极化扭转超表面反射阵天线设计<br>Design of 3D Printing Only-Dielectric Wideband Polarization Rotating Metasurface Reflectarray Antenna
%A 石鑫
%J Journal of Antennas
%P 36-44
%@ 2325-2243
%D 2022
%I Hans Publishing
%R 10.12677/JA.2022.113005
%X 本文提出了一种基于3D打印的全介质宽带极化扭转超表面反射阵天线。首先，提出并设计了一款新型全介质宽带极化扭转反射阵单元，它可使入射波的极化扭转90？的同时，与其镜像结构共同提供了0？和180？的1-bit相位量化，在28~40 GHz频带内极化扭转率超过80%。其次，该反射阵天线采用喇叭天线作为馈源，阵面由上述1-bit反射式全介质宽带极化扭转单元构成，在馈源的照射下，通过合理设计极化扭转反射表面的反射相位，在较宽的频带内实现高增益特性。仿真结果表明，该反射超表面是在26~40 GHz宽频带内实现了极化扭转特性，天线获得了33%的3 dB增益带宽，在34 GHz获得了最大增益26.2 dBi。<br />
In this paper, a 3D printing only-dielectric wideband polarization rotating metasurface reflectarray antenna is proposed. Firstly, a novel only-dielectric wideband polarization rotating reflectarray element is designed, which can be used to rotate polarization of the reflective wave by 90？ relative to that of the incident wave. The element and its mirror image can provide 0？ and 180？ phase shifts with 1-bit phase quantization and more than 80% polarization conversion rates in the 28~40 GHz band. Secondly, the reflectarray antenna uses a horn antenna as a feed source, and the array surface is composed of the above 1-bit reflective only-dielectric polarization rotating element. Under the irradiation of the feed, the reflection phase of the polarization rotating reflection surface is reasonably designed to achieve high gain characteristics in a wide frequency band. Simulated results show that the reflectarray achieves 33% 3 dB gain bandwidth with a peak gain of 26.2 dBi at 34 GHz.
%K 全介质，极化扭转反射超表面，宽带，反射阵天线，3D打印
%K Only-Dielectric
%K Wideband
%K Polarization Rotating Metasurface (PRM)
%K Reflectarray Antenna
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=54752