摘要
针对电磁场教学中极化概念抽象,学生理解困难的突出特点,该文结合电磁波圆极化理论的教学构思,配套设计了圆极化教学新实验。实验利用轴向模螺旋天线易于观察旋向的特点,制作了简易的左旋和右旋圆极化螺旋天线,并配合电磁波综合实验仪进行收发和观测。该教学方法将电磁波圆极化理论的教学与实验相结合,以逻辑清晰、形象直观的形式帮助学生学习和充分理解电磁波极化中的教学难点。该文设计的圆极化教学新实验填补了电磁波圆极化教学实验的空白。
Considering that the concept of polarization in electromagnetic field course is abstract and difficult for students to understand, this paper designs a new experiment of circular polarization in combination with the teaching idea of electromagnetic wave circular polarization theory. The experiment made use of the characteristic that the axial mode helical antenna is easy to observe the rotation direction, and made simple left-handed and right-handed circular polarized antennas. Combined with electromagnetic wave comprehensive experiment instrument for transceiver and observation. This teaching method combines the teaching of electromagnetic wave circular polarization theory with experiment, and helps students to learn and fully understand the difficulty of electromagnetic wave polarization in a clear and visual form. The new experiment of circular polarization teaching designed in this paper fills the blank of electromagnetic wave circular polarization teaching experiment.
作者
刘贤峰
杨德强
陈波
潘锦
LIU Xianfeng;YANG Deqiang;CHEN Bo;PAN Jin(School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China)
出处
《实验科学与技术》
2021年第4期30-33,50,共5页
Experiment Science and Technology
基金
国家自然科学基金创新研究群体项目(61721001)。
关键词
极化理论
教学模式
圆极化
新实验
polarization theory
teaching model
circular polarization
new experiments
