Physical Science International Journal

Does photon have structure, what structure? A useful clue is: The EM theory predicts that the helical distribution of vector EH plus speed  makes the angular momentum of the circular polarized light.  Photon possesses speed  and spin , weather its spin and other basic properties are also owing to the similar EH structure plus ? We are going to find out the answer. Starting from an ordinary symmetrical EM-wave beam, we do not presuppose it having any relation with the photon and quantization. We will prove the symmetrical wave beam is circular polarized; it is composed of an -energy packet and a conical (EM) wave with much smaller energy. The energy packet is a small and thin slice of circular polarized EH field wrapped by a cylindrical side membrane with helically distributed . Mechanical equilibrium between  and stresses  in the side membrane and the EH field inside construct a very steady structure to keep its integrity and energy. The energy-packet will be proved having almost all the basic properties we used to know for the photon(s). It floats on the front of the conical (EM) wave. They move with the same phase until meeting an obstacle. The energy packet and accompanying wave satisfy the same circular polarized wave function and play a role together in the processes of emission, absorption and interference. They show wave particle properties all the time. It seems such EM train can be reasonably treated as a photon and vice versa.