A Simplified Approach to Axisymmetric Dual-reflector Antenna DesignNational Aeronautics and Space Administration, Scientific and Technical Information Division, 1988 - Antennas, Reflector - 10 pages |
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Aeronautics and Space algebraic equations analysis is developed Approach to Axisymmetric Axisymmetric Dual-Reflector Antenna Cassegrain and Gregorian Computed examples include described for designing deviation from uniform distribution of intensity Dual-Reflector Antenna Design emit beam emitted rays energy emitted envelope equa equation is solved equations 17 Equations To determine Etotal examples include deviation examples include variations function of Y3 geometry intensity distribution intersections Langley Research Center main reflector midpoint Modified Cassegrain system Modified Gregorian system NASA National Aeronautics output beam output wave shape parallel-beam property Performing Organization phase distribution plane at X3 Prescribed wave shape property of conventional ray reflected ray slope Raymond L reference plane reflection point reflector meridian line reflector surface Research Center Hampton Security Classif Simplified Approach Source rays Space Administration specified subreflector substituted back Substituting from equations system centerline tan 0c tangent planes tangent segment tangent to reflector uniform source distributions vertical plane Y₁