Patent ID: 11942672
Assignee: HONGKONG FINGU DEVELOPMENT COMPANY LIMITED
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 31:
32. The filter comprising the high-Q triple-mode dielectric resonance structure as claimed in claim 22, wherein, the cavity is cube-like; in order to realize coupling among triple modes, cut sides for realizing the coupling among the triple modes are processed on any two adjacent surfaces of the cavity under a premise that the size of the dielectric resonance block is not changed; sizes of the cut sides are related to a required coupling quantity; coupling between the two modes in the triple-mode coupling is realized by the cut sides of the cavity; a remaining coupling is realized by cutting corners at two adjacent sides of the cavity: a wall is not broken when the corners are cut at the adjacent sides of the cavity; corner cutting surfaces need to be completely sealed with the cavity; a surface of the cavity is electroplated with copper or silver; the cavity is made of metal or nonmetal materials; and when the cavity is made of the nonmental materials, an inner wall of the cavity is electroplated with conductive materials.