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:
Aug. 25, 2026
Filed:
Jul. 16, 2024
Qorvo Us, Inc., Greensboro, NC (US);
Nadim Khlat, Cugnaux, FR;
Qorvo US, Inc., Greensboro, NC (US);
Abstract
Negative capacitance tuning in an acoustic filter circuit is provided. The acoustic filter circuit includes a tunable negative capacitance circuit that is coupled between an input node and an output node. The tunable negative capacitance circuit can be tuned according to embodiments of the present disclosure to present multiple negative capacitances, each of which is configured to cancel an electrical capacitance at a respective one of multiple operating frequencies. Herein, the electrical capacitance may be caused by an acoustic resonator coupled in parallel to the tunable negative capacitance circuit and May compromise the performance of the acoustic filter circuit at those operating frequencies. By tuning, either statically or dynamically, the negative capacitances between the input node and the output node, it is possible to cancel the electrical capacitance in order to improve the performance of the acoustic filter circuit across a broader operating frequency range.