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. 30, 2005
Filed:
Dec. 20, 2002
Wolfram Kluge, Dresden, DE;
Heiko Kaluzni, Grossenhain, DE;
Dietmar Eggert, Dresden, DE;
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
A mixer circuit is provided for receiving first and second input signals to be mixed and for producing a mixed output signal. The mixer circuit comprises a pair of switching transistors each of which having first, second and third terminals. The mixer circuit further comprises a single ended input connected to the first terminals of the pair of switching transistors, a local oscillator input connected to the second terminals of the pair of switching transistors for controlling the switching of the transistors, a serial capacitor connected in serial connection between the single ended input and the first terminals of the pair of switching transistors, a pair of output capacitors each of which being connected to a third terminal of the pair of switching transistors. Said third terminals of said pair of switching transistors forming an output port. The mixer circuit provides a mixer schematic with improved noise performance.