Trimmed DOE lens and gain enhancement

The RIT research group has developed, designed, constructed and tested a diffractive optical element (DOE) lens for gain enhancement and beam shaping. Although the lens is unique in that it is much thinner and lighter, the size proved to be much larger than the antenna dimensions. This paper presents a methodology for creating a more realistic size of the DOE lens with respect to the antenna dimensions by trimming the lens along an axis and obtaining the gain enhancement in each case. The simulation is performed in CST Microwave Studio.