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:
Feb. 07, 2023
Filed:
Dec. 07, 2018
Qorvo Us, Inc., Greensboro, NC (US);
Charles Forrest Campbell, Dallas, TX (US);
Qorvo US, Inc., Greensboro, NC (US);
Abstract
Switch circuitry is disclosed having a series stack of transistors coupled between first and second port terminals. A string of gate resistors having a common gate terminal is coupled to gates of the series stack of transistors. A bias control transistor has a bias control terminal and first and second current terminals. The second control terminal is coupled to a switch control terminal configured to receive on-state and off-state control voltages that transition the series stack of transistors between passing a radio frequency signal and blocking the radio frequency signal from passing between the first and second port terminals, respectively. A string of diodes is coupled between the common gate terminal and the first current terminal, and a common gate resistor is coupled between the common gate terminal and the switch control terminal. The diodes contribute to actively generating additional negative gate bias as RF power level increases.