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. 02, 2025
Filed:
Mar. 09, 2023
Apple Inc., Cupertino, CA (US);
Mohamed Abouzied, La Jolla, CA (US);
Abbas Komijani, Mountain View, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Wireless circuitry can include a radio-frequency amplifier and a power detection circuit coupled to an output of the radio-frequency amplifier. The power detection circuit can include an input transistor, a biasing circuit configured to output a bias voltage for the input transistor and configured to track temperature and voltage variations, and a non-linearity cancellation component configured to generate a current that at least partially cancels a non-linear current associated with the input transistor. The input transistor may be an n-type transistor, and the non-linearity cancellation component may be a p-type metal-oxide-semiconductor capacitor. The biasing circuit can include n-type and p-type diode-connected bias transistors.