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. 01, 2020
Filed:
May. 31, 2019
Shanghai Huahong Grace Semiconductor Manufacturing Corporation, Shanghai, CN;
Ruofan Dai, Shanghai, CA;
Abstract
a radio frequency (RF) switching circuit, including: a conducting module, configured to conduct an RF signal; a gate control voltage generating module, configured to provide a gate control voltage for the conducting module to control the conducting module operating at ON-state or OFF-state; wherein the gate control voltage generating module further includes: a first resistance adaptive module, providing a first impedance in a first state for a series branch where the conducting module and the gate control voltage generation module locate, and a second impedance in a second state for the series branch where the conducting module and the gate control voltage generation module locate, wherein the first impedance is greater than the second impedance. FOM is improved comprehensively, and Ron, Coff, and a power breakdown performance are optimized, which further improves circuit performance and reduces cost.