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微波介质谐振器材料的应用已日益广泛.用它们制成的介质滤波器和介质振荡器体积小、成本低、可靠性高,与集成电路相容.已广泛用于卫星电视、雷达和数字通讯.南京固体器件研究所自一九八三年起,选用二氧化钛、二氧化锆、二氧化锡为基本组分,外加少量添加剂,采用一般电子陶瓷工艺制备了ε为34～40、12GHz下Q大于4000、τ_f为-7～+7ppm/℃的介质材料.用这种材料制成三腔、四腔介质滤波器,中心频率分别为7747MHz和8059MHz,通带插损为0.5dB,滤波器的频率响应随温度的变化小于2～6ppm/℃.介质滤波器经严格考核通过了鉴定,并已用于无人值守微波中继机上.用这种材料制成的10.7GHz介质稳
Microwave dielectric resonator materials have become more and more widely used, and their dielectric filters and dielectric oscillators are small, low cost, highly reliable and compatible with integrated circuits and are widely used in satellite television, radar and digital communications Nanjing Institute of Solid State Devices since 1983, the selection of titanium dioxide, zirconium dioxide, tin dioxide as a basic component, plus a small amount of additives, the use of general electronic ceramic process to prepare the ε is 34 ~ 40, 12GHz, Q is greater than 4000, and the dielectric constant of τ_f is -7 to +7 ppm / ° C. Three-cavity and four-cavity dielectric filters are made of this material with center frequencies of 7747 MHz and 8059 MHz, respectively, with a passband insertion loss of 0.5 dB. The filter frequency Response changes with temperature less than 2 ~ 6ppm / ℃. Dielectric filter through the strict assessment passed the appraisal, and has been used in unmanned microwave repeaters on the use of this material made of 10.7GHz media stability