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. 14, 2020
Filed:
Sep. 05, 2018
Applicants:
Nidec Corporation, Minami-ku, Kyoto, JP;
Wgr Co., Ltd., Shimogyo-ku, Kyoto, Kyoto, JP;
Inventors:
Assignees:
NIDEC CORPORATION, Kyoto, JP;
WGR CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 5/18 (2006.01); H01P 3/123 (2006.01); H01Q 13/20 (2006.01); H01P 3/18 (2006.01); G01S 13/931 (2020.01); G01S 13/34 (2006.01); G01S 13/86 (2006.01); H01Q 13/10 (2006.01); H01P 5/22 (2006.01); H01Q 21/06 (2006.01); G01S 7/03 (2006.01); H01Q 1/32 (2006.01); H01Q 3/36 (2006.01); G01S 13/93 (2020.01); H04B 7/0413 (2017.01); H01P 3/12 (2006.01);
U.S. Cl.
CPC ...
H01P 5/188 (2013.01); G01S 7/03 (2013.01); G01S 13/345 (2013.01); G01S 13/347 (2013.01); G01S 13/867 (2013.01); G01S 13/931 (2013.01); H01P 3/123 (2013.01); H01P 3/18 (2013.01); H01P 5/182 (2013.01); H01P 5/222 (2013.01); H01P 5/227 (2013.01); H01Q 13/10 (2013.01); H01Q 21/064 (2013.01); G01S 2013/9375 (2013.01); H01P 3/122 (2013.01); H01Q 1/3233 (2013.01); H01Q 3/36 (2013.01); H04B 7/0413 (2013.01);
Abstract
A directional coupler includes: a first waffle-iron ridge waveguide extending from one end to other end; a second waffle-iron ridge waveguide extending from one end to the other end; a first bypass waveguide connecting a first site of the first waffle-iron ridge waveguide and a first site of the second waffle-iron ridge waveguide; and a second bypass waveguide connecting a second site of the first waffle-iron ridge waveguide and a second site of the second waffle-iron ridge waveguide.