| 摘要 |
PURPOSE: A frequency cavity filter and a bolt thereof are provided to minimize assembling tolerance by securing a sufficient length of the hole of a resonator or a bolt. CONSTITUTION: A frequency cavity filter comprises a housing(300), a resonator(310), and a first bolt. The housing has a plurality of cavities(308) defined by partition walls. The resonator is stored in a specific cavity. The first bolt clinches the resonator on the housing. The first bolt includes a head part, a first body part, and a second body part. The first body part is inserted into the hole of the resonator. The hole of the resonator has at least 3mm.
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