【作者】 敖燕涛； 田玲； 吴凡；

【Author】 Yan Tao Ao;Ling Tian;Fan Wu;School of Information Science and Engineering,Southeast University;

【机构】 东南大学信息科学与工程学院；

【摘要】 本文提出了一种基于微带时延线的双频波束扫描反射阵列。采用低频和高频圆形微带贴片交替排列实现双频功能,并将接收到的能量通过缝隙耦合到底部微带时延线上。通过控制微带时延线上PIN二极管的开关状态,能够同时实现在2.50GHz～2.65GHz和3.40GHz～3.65 GHz的带宽范围内,对入射电磁波2 bit的精确调相。通过组合10×10个相互独立的双频反射单元,最终实现了整个工作频带内,0～60°范围的波束扫描。该双频波束扫描反射阵具有灵活的动态调控性能,在智能通信与感知中具有广泛的应用前景。更多还原

【Abstract】 A dual-band beam scanning reflectarray based on microstrip delay line is proposed in this paper. To achieve dual-band functionality, low-frequency and high-frequency circular microstrip patches are arranged alternately, and the received energy is coupled to the underlying microstrip delay lines through slot coupling. By controlling the switching state of the PIN diodes on the microstrip delay line, precise 2 bit phase modulation of incident electromagnetic waves can be achieved simultaneously within the bandwidth of 2.50-2.65 GHz and 3.40-3.65 GHz. By combining 10×10 independent reflectarray elements, a beam scanning of 0～60°is ultimately achieved throughout the entire operating frequency band. The dual-band beam scanning reflectarray has flexible dynamic control performance and broad application prospects in intelligent communication and sensing.更多还原