In this video what are the requirements of antenna radiations. How it relates with Maxwell equation is explain in details. The prerequisite for better understanding are as follows:
1.1 Co-ordinate Systems for area calculations https://youtu.be/LxfYpiIER30
1.2 Physical Significance of Dot Product, Cross Product, Divergence, Gradient and Curl https://youtu.be/XaEzrPHAKYk