This section will distill several equations regarding antenna theory and connect the dots using words wrapped around the concepts to enable a complete understanding of antenna theory --- for any technical level.
Part 1: The vast difference between electron flow and electric current/displacement flow in a conductor.
To distinguish and visualize the difference between Electron flow and electric current/displacement in a conductor we use the Newtons Cradle instrument --- often considered a toy. It is used to demonstrate transmission line logic including how waves of electric current propagate in a conductor, impedance mismatch, reflected waves, etc. etc.etc.
A. Basic mechanics of wave propagation in a conductor.
- Watch this video noting that one bearing is launched at a second resulting in the launched bearing coming to a stop and the second accelerating to the same speed/energy level as the first. Video clip 1 bearing slow . The concept here is, when a bearing is launched at a second stationary bearing that weighs the same, the first will come to rest exactly the depth of compression plus decompression which is approximately 10 nano-inches and the energy from the first will be transferred to the second. The displacement current was probably close to 700MPH. Think of the momentum/velocity as the magnetic energy and the compression the electric field. Look at 1 bearing of 5. Each bearing is accelerated contacting the adjacent, compressing decompressing individually and passing the energy to the next while coming to a stop almost in place.