WU Jianqiang

(Jingdezhen Ceramic Institute)

Abstract: The Study of the designing method and making technology of the coaxial resonators filter of high dielectric constant .The main factors which effect insertion of filters are analyzed .The designing filter is a bandpass filter consisting of four high Q value dielectric coaxial resonators .They were coupled to each other through capacitors on the dielectric substrate .The results of testing samples reveal that their electric properties meet designing demands .

Keywords: 980MHz dielectric filter , four series , study of application