| This paper summarize the situation of the design and analysis of the reflector antenna and the wave-guide slot array antenna as well as nowaday study degree of the coupling problem through consulting a lot of information. Then based on it, structural-electromagnetic coupling analysis of the reflector antenna and wave-guide slot array antenna is done with the large electromagnetism analyse software. Then the relation between the electric performence and distortion antenna is obtained, which can afford some reference for the structure design of the reflector antenna and the wave-guide slot array antenna.Firstly through compareing the differences in the large electromagnetism analysis softwares,we select the proper software which is better in analysis on the reflector antenna and make the principle of the density of the mesh gerneration. Then the variety of electric performance is analysed when the antenna distort due to the gravity,the whole stochastic distortion,the annular stochastic distortion,the radial stochastic distortion etc.Then the variety of electric performance is also analysed when the feed source lengthways excursion,landscape orientation excursion and deflexion. Finally the theory analysis about the precision request of the subreflector produce and excursion for guaranteeing the phase offset won't exceedπ/ 2 is made. Then the expressions of the allowed biggest error is given.Secondly the main structure factors which can influence the electric performance of the wave-guide slot array antenna is summarized. Then the variety of the electric performance is given through analysing the width﹑height﹑lean of the radiation slot and the distortion of the surface and cavity of the wave-guide.This paper summarize the variety of the electric performance when some structure factos working through the structural-electromagnetic analysis of the recflector and wave-guide slot arry antenna, which afford some references for the design and study on the antenna. |
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