DIELECTRIC RESONATOR DEVICE,申请号JP19850119491-传众专利搜索

DIELECTRIC RESONATOR DEVICE

申请公布号：JPS61277204(A)

申请号：JP19850119491

申请日期：1985.05.31

申请公布日期：1986.12.08

申请人：

MURATA MFG CO LTD

发明人：NISHIKAWA TOSHIO;ISHIKAWA YOHEI;WADA SHUICHI;TAKEHARA KOICHI

分类号：H01P1/20;H01P1/208;H01P7/10

主分类号：H01P1/20

摘要：PURPOSE:To make a device small-sized and low-cost by allowing the direction of lines of magnetic force generated in a loop to coincide with the direction of lines of magnetic force of a resonance mode to be coupled in an input coupling means and allowing that to interlink to the direction of lines of magnetic force of the resonance mode to be coupled in an output coupling means. CONSTITUTION:Three prismatic dielectrics joined orthogonally to one another into one body are arranged in a rectangular parallelepiped-shaped cavity shield case to use resonances of TM110 modes existing in respective axial directions of prismatic dielectrics or their deformation modes, and the dielectric resonator constituted in this manner and an external circuit are coupled. In the odd mode, the magnetic energy is stronger than the electric energy near a coupling control member 4a, and the electric energy is stronger near a coupling control member 5a. In the even mode, the electric energy is stronger near the coupling control member 4a, and the magnetic energy is stronger near the coupling control member 5a. Consequently, coupling is zero practically if coupling control members 4a and 5a are taken in and out to equalize resonance frequencies in the odd mode and the even mode. Thus, the device is made small-sized and low-cost.