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:
Oct. 24, 2017
Filed:
Dec. 18, 2015
Shanghai Huahong Grace Semiconductor Manufacturing Corporation, Shanghai, CN;
Ruofan Dai, Shanghai, CN;
Abstract
The embodiments of the present disclosure provide a low noise amplifier including: an input stage circuit; a bias circuit, adapted for providing bias to the input stage circuit; an output stage circuit; a first amplifier and a second amplifier; a first middle stage circuit, adapted for implementing inter-stage matching, signal coupling and isolation between the input stage circuit and the first amplifier; and a second middle stage circuit, adapted for implementing inter-stage matching between the first amplifier and the second amplifier, wherein the first middle stage circuit is coupled with the second middle stage circuit via the first amplifier, and the second middle stage circuit is coupled with the output stage circuit via the second amplifier. Accordingly, amplifier gain of LNA is improved without increasing power consumption.