| 摘要 |
A wave filter includes a shell, a wave filter circuit board in the shell, a cover secured over a holding room of the shell, and a grounding component interposed between the circuit board and the cover; the shell has several detainment gaps on an upper end of its surrounding wall; the circuit board has several grounding holes; the cover has several joining protrusions on its periphery, and is joined on the shell with the joining protrusions being tightly embedded in corresponding detainment gaps on the shell; the grounding component has several grounding terminals, which are embedded in corresponding grounding holes of the circuit board; the grounding component has several joining protrusions on a periphery, which are embedded in corresponding detainment gaps; thus, the circuit board will be directly grounded through the grounding component and the shell after assembly without applying solder between the circuit board and the shell.
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