| The content of this article was based on the project of Civilian space during the12th Five Year Plan Period. Quasi-Optical technology was widely used in Radio astronomy, Meteorological monitoring, Satellite Remote Sensing etc. Antenna Measurement System was the effective measurement in the Quasi-Optical analyzing, and the base of the Quasi-Optical technology research was to design an effective Quasi-Optical antenna measurement system. Therefore, it was necessary to the design the simulation software which has excellent performance.At present, there was some related system design simulation software such as the GRASP of the TICRA. However, the analysis method has some drawbacks. In order to adapt to the development of science and engineering, based on DGBA(Diffractd Gaussian Beam Analysis) the members of our lab have developed a system design and simulation software-SiMatrix, which has certain advantages in accuracy and computational efficiency. Since the SiMatrix was imperfect, my main jobs is to design the shaped mirror Tri-reflector CATR(Compact Antenna Test Range) system and simulation the system in the SiMatrix.The development of the shaped mirror Tri-reflector CATR system was based on some related technology, such as the Computer Graphics, OpenGL Programming, Mathematical knowledge, including the Coordinate transformation, dual-Paraboloid expanding, Newton iteration etc.The another job is to use the DGBA algorithm to design and analyze the Quasi-Optical system (Cassegrain-Gregorian system). The DGBA analysis method was the basement of SiMatrix, which Combined the advantages of other analytical methods with high computing speed and accuracy and was suitable for modular design. The article simulated the Cassegrain-Gregorian three mirror reflection antenna measurement system and analyzed the test results. |
PDF Full Text Request