110 in the active denial apparatus 100 fig4 shows the configuration of main reflector 210 and sub reflector 220 according to one embodiment of the present invention main reflector 210 and sub reflector 220 may be configured in a variety of different ways to produce different focal lengths additionally although depicted in fig4 6 as reflectors it should be noted that these focusing elements may include lenses flat panel antennas phased arrays mirrors and any other reflective components that allow waves emanating from the millimeter wave source 110 to achieve the desired convergence and divergence of the wave in the x and y directions the millimeter wave source 110 may be compact and could be realized using solid state grid amplifier and or grid oscillator technology to obtain a high power beam a useful beam profile can be obtained with the natural divergence of a beam that is collimated in the horizontal direction with a 0 1 meter aperture i e 0 1 meter extent in the x direction and converged to a minimum extent in the y direction at a distance of u02dc 11 meters using an aperture that extends 0 35 meters in the y direction fig5 shows the active denial apparatus 100 as a handheld unit according to another embodiment of the present invention it should be noted that the astigmatic or dual axis focusing system 200 described herein can be scaled to any sized system the two main components of the active denial apparatus 100 according to fig5 are the high power millimeter wave source 110 and the at least one beam processing element comprising the astigmatic focusing system 200 in this embodiment the high power millimeter wave source 110 comprises a solid state grid oscillator 130 with an.