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2X2 array 600 Frequency MHz 611 MHZ FEED 611 MHz including 9-METER REFLECTOR 9.14 meter diameter Angle deg array of fan-dipoles array with cross-baffles array without baffles B. B. Hefner Baffles conducting fences Calculated reflector radiation Calculated scatter patterns coupling between dipoles coupling for 2X2 desired reflector illumination dimensions in centimeters dipole elements dipole height E-plane edge-baffles electric field element spacing existing 9.14 meter fan-dipoles is designed far-field feed and strut feed polarized 45 feed radiation pattern figure 11 final dipole tuning Geometrical Theory H-plane feed pattern IEEE impedance matching infinite conducting ground input interelement mutual coupling linear dipoles Measured VSWR meter diameter reflector MHz including feed NASA patterns at 611 patterns of figure Performing Organization projections in aperture reduce interelement reduce mutual coupling reflector antenna reflector radiation patterns shown in figure Significant strut scattering strut projections strut scattering effects Theory of Diffraction VSWR for 2X2 wavelengths with-respect-to the strut