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:
Jun. 24, 2025
Filed:
Jul. 28, 2021
Georgia Tech Research Corporation, Atlanta, GA (US);
Ahmad Rezvanitabar, Atlanta, GA (US);
Evren Fatih Arkan, Atlanta, GA (US);
Fahrettin Levent Degertekin, Atlanta, GA (US);
Georgia Tech Research Corporation, Atlanta, GA (US);
Abstract
Systems and methods are disclosed for improving broad bandwidth performance of CMUT elements and arrays using negative capacitance-based impedance matching. The disclosed systems and methods provide a controllable compromise balance between electrical power transfer, acoustic reflectivity, and signal-to-noise ratio. Certain implementations utilize active control of impedance network parameters based on a DC bias input to the CMUT. Instead of minimizing electrical reflection, acoustic reflectivity is controlled to provide improved SNR-bandwidth. Negative capacitance-based matching is tunable to accommodate collapsed mode CMUTs where capacitance and frequency response changes significantly with DC bias.