In the hypersonic flight conditions,the radome will have to face the contradiction between the mechanical,
thermal and electrionics in electrical structure design. In order to solve this contradiction,this paper apply
the impedance matching techniques,introduce the permittivity matching layer between the mechanical layer and the
heat insulation layer. Using this techinque,the electrical property have been significantly improved based on satisfying
the mechanical property and the thermal property. The application of this techniques can provide a feasible technical
way for traditional area of electrical structure design, and can effectively solve the bottleneck problem of designing
high temperature radome and other high performance radome.