Dielectric filter and communication device
US12315978B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2022 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | Mar 30, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/208
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Embodiments of this application provide a dielectric filter and a communication device. The dielectric filter includes: a dielectric body, a first blind via and a second blind via that are provided in the dielectric body, a through hole located between the first blind via and the second blind via, and an insulating portion, where inner walls of the first blind via, the second blind via, and the through hole each are covered with a metal layer, and an outer surface of the dielectric body is covered with a metal layer; and the insulating portion is implemented by not covering a metal layer on a surface of the dielectric body, and the insulating portion partially surrounds the through hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.