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The efficiency of the use of electromagnetic waves to transfer electric power from one point in space to another is investigated. Electromagnetic fields generated around their source can be classified into two categories, namely the near fields and the far fields. Near fields store reactive energy in the region surrounding the source, whereas far fields carry net outgoing power associated with the radiated electromagnetic wave. In this project, we need to derive the maximum theoretical limit on the use of each of these categories to transfer electric energy from one point to another. The achievability of such limit in practical systems is also investigated
This project investigates the quality of microwave components built by additive manufacturing using 3D printers. WR28 waveguides are printed, then coated with Silver-coated copper conductive super shield. The manufactured prototypes are measured with a vector network analyzer (Thanks to the members of the RFTONICS lab at KSU). The performance is plotted versus the painting profile.
