摘要
阐述了相控阵原理演示仪的原理、实验内容及方法,该仪器可方便地通过人为控制对发射单元的信号移相使发射阵列的空间传输信号发生偏转.通过定量研究空间传输信号的偏转角度与控制信号的移相相位差的关系,让学生从波的干涉理论上来理解相控阵的基本原理,从而可较好地配合物理学波动理论的学习.
The principle and experimental method of phased array demonstrator were presented.By manually controling the phase shift of the transmission unit to deflect the propagation of the signal and quantitatively analyzing the relationship between deflection angle and phase shift,students could learn and understand multi-beam interference theory comprehensively.
出处
《物理实验》
2012年第3期33-36,共4页
Physics Experimentation
关键词
相控阵
多波束干涉
相位差
整体波束
phased array
multi-beam interference
phase difference
overall beam
