Method for dividing electromechanical synthetic graticule of double-reflecting plane antenna system

The invention discloses a electromechanical comprehensive mesh generation method for dual-reflector antenna system, comprising: extracting mesh information of a main reflector, a sub-reflector and a feed source from the structure analyzing model of a dual-reflector antenna; converting a mesh into a regular depths image according to the upper limit of the working frequency of the antenna; selecting a standard mesh form according to the structural forms of the main reflector, the sub-reflector and the feed source, and evenly thinning; obtaining a mapping mesh corresponding to the depth image by the conversion of mass centric coordinates; and sampling on the depth image by the mapping mesh to form a three-dimensional mash of the main reflector, the sub-reflector and the feed source for the dual-reflector antenna, which is used for electromagnetic analysis and calculation. The method not only solves the problem that mesh generation requirements of dual-reflector antenna structure and electromagnetic analysis disjoint, but also the problem that the forms of a main reflector, a sub-reflector and a feedback source are not unified; besides, the accuracy and efficiency of electromagnetic analysis are improved, and the method can be used for computer aided analysis and design of dual-reflector antennae.