Theoretical Teaching and Experimental Design of Circularly Polarized Electromagnetic Waves

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.