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:
Jul. 28, 2026
Filed:
Mar. 18, 2022
Danmarks Tekniske Universitet, Kongens Lyngby, DK;
Dennis Høj, Kongens Lyngby, DK;
Ulrich Busk Hoff, Kongens Lyngby, DK;
Ulrik Lund Andersen, Kongens Lyngby, DK;
DANMARKS TEKNISKE UNIVERSITET, Kongens Lyngby, DK;
Abstract
The invention relates to a mechanical oscillator device comprising an unsupported membrane with a multitude of discrete mass elements distributed to form Phononic crystal cells in the form of regions of additional mass each comprising a plurality of mass elements. The phononic crystal structure has a defect for confining a mechanical oscillation mode having a resonance frequency, f, with the mass elements have a smallest lateral dimension of less than 1/10 of a wavelength of the mechanical oscillation mode. The invention is based on a distribution of tiny additional mass elements providing a periodic density contrast pattern to create the bandgap. This approach keeps the tensile stress uniform which ensures perfect overlap between the tensile stress distribution and mode-shape. This again reduces the damping and thus allows for very high quality factors, Q.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile