Resonators, filters, dynamic antenna elements, and remote radio units

Abstract

This application relates to the field of antenna technology and discloses a resonator, a filter, a dynamic antenna element, and a remote radio unit. The resonator may include a dielectric having opposing upper and lower surfaces and sidewalls disposed between the upper and lower surfaces, with at least two first blind vias disposed on the upper surface, each extending toward the lower surface, and the at least two first blind vias arranged in a first direction. A through groove is disposed between any two adjacent first blind vias, and at least one second blind via is disposed in the sidewall between any two adjacent first blind vias, extending from the surface of the sidewall to the dielectric, the extension direction of the second blind via being perpendicular to the first direction, and the second blind via and the through groove are spaced apart from each other. The resonator disclosed in this application allows for improved performance when a miniaturized design of the resonator is implemented.

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