公开(公告)号：GB2284942A

公开(公告)日：1995-06-21

申请号：GB9425244

申请日：1994-12-14

Applicant: KOREA ELECTRONICS TELECOMM ,  KOREA TELECOMMUNICATION

Inventor： SUNG HEE KYUNG ,  LEE CHANG HWA ,  KIM TAE HONG ,  LEE SANG SEOK ,  CHOI TAE GOO

IPC: H01P1/205 ,  H01P5/08 ,  H01P7/04

Abstract: A dielectric resonator comprises a dielectric block 301 with a first electrode 305 formed on a first surface 302 and a second electrode 304 formed within an inner conductive hole 303 extending from the surface opposite the first surface 302, towards but not reaching the first surface 302, such that the first and second electrodes 304, 305 face each other to form a coupling capacitor and a conductive layer formed on one or more of the remaining surfaces. The resonators may be combined to form a filter arrangement. The filter may include window and groove arrangements to adjust the coupling between the resonators. The inner conductive hole 303 may have a circular, elliptical or quadrilateral cross sectional shape. The first electrode 305 may extend to an edge of the dielectric block 301 to form a connection terminal allowing direct surface mounting on to a circuit board.

公开(公告)号：GB2284942B

公开(公告)日：1997-06-18

申请号：GB9425244

申请日：1994-12-14

Applicant: KOREA ELECTRONICS TELECOMM ,  KOREA TELECOMMUNICATION

Inventor： SUNG HEE KYUNG ,  LEE CHANG HWA ,  KIM TAE HONG ,  LEE SANG SEOK ,  CHOI TAE GOO

IPC: H01P1/205 ,  H01P5/08 ,  H01P7/04

Abstract: A dielectric resonator includes a dielectric block having an open surface at one of the surfaces thereof, the remaining surfaces being plated with a conductor. The dielectric block has an inner conductor hole formed at a surface of the dielectric block opposite to the open surface, the inner conductor hole extending a predetermined depth toward the open surface such that it does not perforate through the open surface. An electrode pattern is formed on the open surface such that it faces an end surface of the inner conductor hole, the electrode pattern being adapted to provide an input/output capacitor. The dielectric block has a coupling window formed on a predetermined portion of one of the surfaces of the dielectric block, except for the open surface and the surface formed with the inner conductor hole, at a position adjacent to one of the open surface and the surface formed with the inner conductor hole. The coupling window is free of the plated conductor and adapted to control a coupling degree of the resonator to another resonator. Other embodiments include integral type filters having resonators in a single dielectric block.