Invention Grant
US09520631B2 Spherical filter 有权
球形过滤器

Spherical filter
Abstract:
An embodiment filter including metallic plating unitarily forming a spherical shell and a resonator, the resonator defining a resonator cavity, a tuning nut disposed in a lower portion of the resonator cavity, and a tuning screw threadably secured within the resonator cavity by the tuning nut, the tuning screw rotatable to deform an upper portion of the resonator to tune the filter.
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