| 摘要 |
PURPOSE:To reduce the reduction in the Q and to improve the bonding strength, heat resistance and insulation by a dielectric resonator and a supporting base with a polyimide resin. CONSTITUTION:Discord dielectric resonator of BaO-MgO-ZnO-Ta2O3 group with a specific size is used. Further, a cylindrical supporting base of stearite group with specific size is used. A polyamic acid solution obtained by polymeriz ing a 3,3',4,4'-biphenyltetracarboxylic acid dianhydride and a 4,4'- diaminodiphenylether in an N-methyl-2-pyrrolidone is applied to the top of the supporting base as a polyamide group adhesives to bond the dielectric resona tor and the bonded resonator is heated for 1hr at 120 deg.C to obtain the dielectric resonator as shown in figure. Further, the working efficiency in the bonding is excellent. |
