The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 08, 2025
Filed:
Jul. 26, 2021
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Jingpeng Li, Beijing, CN;
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Abstract
Disclosed is a dielectric filter. The dielectric filter includes a body, a first resonant unit, a second resonant unit and a groove. The first resonant unit is arranged at a first side of the body. The second resonant unit is arranged at a second side of the body opposite to the first side. The groove is formed at a middle position of the body and is configured to partially separate the first resonant unit and the second resonant unit from each other. Each of the first resonant unit and the second resonant unit includes a first frequency resonant hole, a second frequency resonant hole and a coupling adjustment hole. In each of the first resonant unit and the second resonant unit, the first frequency resonant hole and the second frequency resonant hole are located on different surfaces of the body, and the first frequency resonant hole has a first longitudinal extension line perpendicular to a second longitudinal extension line of the second frequency resonant hole, and the coupling adjustment hole is located on another surface of the body and has a third longitudinal extension line parallel to the first longitudinal extension line or the second longitudinal extension line.