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:
Sep. 16, 2025
Filed:
Dec. 19, 2022
Wistron Corporation, New Taipei, TW;
Yung-Jr Hung, New Taipei, TW;
Cheng-Hsuan Wu, New Taipei, TW;
WISTRON CORPORATION, New Taipei, TW;
Abstract
A broadband ring resonator includes a first waveguide and a second waveguide. The first waveguide is a closed loop having a first coupling section having a first width and a first curvature radius. The second waveguide includes a first section, a second coupling section, and a second section which are connected in sequence. The second coupling section has a second width and a second curvature radius. Coupling ratios of the second waveguide coupled to the first waveguide within a broadband have a similarity to each other. A coupling angle is respectively between two ends of the first coupling section and between two ends of the second coupling section, and the first and second coupling sections are separated by a coupling gap. The second curvature radius is greater than the first curvature radius. A ratio of the first width with respect to the second width ranges from 1.3 to 1.7.