聊城大学学报（自然科学版）2024，Vol.37Issue(3)：8-13,79,7.DOI:10.19728/j.issn1672-6634.2023120009
高增益反射型超表面多波束双频天线设计
Design of High Gain Reflecting Metasurface Multi-beam Dual-band Antenna
摘要
Abstract
A high gain multi-beam dual-frequency antenna is proposed to achieve beam focusing and beam deflection in dual-frequency band by means of the electromagnetic control characteristics of metasurface.The designed multi-beam dual-frequency antenna consists of two parts:reflective metasurface and dual-frequency microstrip antenna.To achieve beam focusing with a focal length of 40 mm and±30° beam de-flection,the dual-frequency microstrip antenna is placed on a horizontal plane 40 mm below the metasur-face.According to the rational arrangement of two metasurface elements whose phase is approximately 0 and π above the antenna,beam focusing is achieved at 14.5 GHz and 22.7 GHz when the antenna is direct-ly below the focus,and±30° beam deflection is achieved at 14.5 GHz and 22.7 GHz when the antenna is ±35 mm away from the focus.The simulation results show that the antenna at different positions can achieve different beam control effects in the dual frequency band.Compared with the non-metasurface antenna,the gain of the antenna in the low frequency band is increased by 11.56～14.03 dBi,and the gain in the high frequency band is increased by 10.74～13.07 dBi.The designed metasurface antenna achieves high gain and beam control performance in dual frequency band.关键词
超表面/双频天线/电磁调控/多波束Key words
metasurface/dual-frequency antenna/electromagnetic control/multibeam分类
信息技术与安全科学引用本文复制引用
徐娟,杨科心..高增益反射型超表面多波束双频天线设计[J].聊城大学学报（自然科学版）,2024,37(3):8-13,79,7.基金项目
国家自然科学基金(61701278) （61701278）
山东省自然科学基金(ZR2023MF038)资助 （ZR2023MF038）
