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. 09, 2024
Filed:
Dec. 30, 2020
Applicant:
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Inventors:
Assignee:
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/208 (2006.01); H01P 1/20 (2006.01); H01P 1/212 (2006.01); H01P 5/04 (2006.01);
U.S. Cl.
CPC ...
H01P 1/212 (2013.01); H01P 1/2002 (2013.01); H01P 1/2088 (2013.01); H01P 5/04 (2013.01);
Abstract
A ceramic waveguide filter, a radio unit, an antenna unit and a base station are disclosed. According to an embodiment, a ceramic waveguide filter comprises a body () that is made of a ceramic material and that has a plurality of resonators each including a blind hole (). The blind holes () of two of the resonators open at a first surface of the body () and extend toward an opposite second surface of the body (). Capacitive coupling between the two resonators is achieved by a coupling structure () on/in a substrate (), to which the body () is attached at the side of the second surface.