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. 23, 2011
Filed:
Oct. 15, 2007
Burkhard Dick, Hamburg, DE;
Burkhard Dick, Hamburg, DE;
NXP B.V., Eindhoven, NL;
Abstract
The invention relates to a circuit arrangement () of a low-noise linear input amplifier comprising a parallel circuit of a common-base circuit () and a common-emitter circuit (), the emitters of two first transistors (Q, Q) are interlinked and the bases of two second transistors (Q, Q) are intercoupled, the collectors are interconnected in parallel with the output, and the source voltage (VG) is interlinked with the emitters of the second transistors (Q, Q) and with the bases of the first transistors (Q, Q), in which a linearization of the output current (OUTLNA) as a function of the source voltage (VG) is achieved by a linearization of the transfer function, such as the tangential hyperbolic function, of the first and second transistors (Q, Q, Q, Q).