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:
Feb. 13, 2018
Filed:
Oct. 14, 2015
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventors:
Assignee:
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/207 (2006.01); H01P 7/06 (2006.01); H01P 5/02 (2006.01); H01P 1/208 (2006.01);
U.S. Cl.
CPC ...
H01P 1/207 (2013.01); H01P 1/2088 (2013.01); H01P 5/022 (2013.01); H01P 5/024 (2013.01); H01P 7/065 (2013.01);
Abstract
An embodiment of the present invention discloses a waveguide filter, which includes a first waveguide at an upper layer and a second waveguide at a lower layer. The first waveguide and the second waveguide are isolated from each other by a metal isolation layer. The first waveguide forms a first resonant cavity. The second waveguide forms a second resonant cavity. The first resonant cavity and the second resonant cavity overlap each other. A coupling slot is disposed at the metal isolation layer in an overlapping area.