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:
Oct. 17, 2023
Filed:
Feb. 19, 2021
Applicant:
Fujikura Ltd., Tokyo, JP;
Inventor:
Yuta Hasegawa, Sakura, JP;
Assignee:
FUJIKURA LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/203 (2006.01); H01P 7/08 (2006.01);
U.S. Cl.
CPC ...
H01P 1/20363 (2013.01); H01P 1/20381 (2013.01); H01P 7/082 (2013.01);
Abstract
Deterioration is reduced in filter characteristics in a type of bandpass filter that is called a strip-line filter or a microstrip filter. A bandpass filter (filter) includes a ground conductor layer (), a plurality of resonators (to) arranged in a layer spaced from the ground conductor layer (), a first line (line) connected to a first-pole resonator () and a second line (line) connected to a last-pole resonator (), wherein a direction in which the first line (line) is drawn out from the first-pole resonator () and a direction in which the second line (line) is drawn out from the last-pole resonator () are opposite to each other.