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:
Dec. 10, 2013
Filed:
Feb. 03, 2010
Zhiyu RU, Enschede, NL;
Eric A. M. Klumperink, Lichtenvoorde, NL;
Bram Nauta, Borne, NL;
Johannes H. A. Brekelmans, Nederweert, NL;
Zhiyu Ru, Enschede, NL;
Eric A. M. Klumperink, Lichtenvoorde, NL;
Bram Nauta, Borne, NL;
Johannes H. A. Brekelmans, Nederweert, NL;
NXP, B.V., Eindhoven, NL;
Abstract
A polyphase harmonic rejection mixer, comprising a plurality of stages following each other; wherein a first stage is arranged to perform at least frequency conversion; and a second stage is arranged to perform at least selective weighting and combining; wherein at least two of the plurality of stages are arranged to perform at least combining. In an embodiment, the first stage () comprises three single-ended gain blocks (), arranged to perform selective weighting, frequency conversion and combining; and a second stage () following the first stage () and arranged to perform selective weighting and combining. The second stage () may reduce the number of phases output by the first stage () and may output () a complex differential down converted signal. The mixer may be directly interfaced to an antenna of an LNA-less receiver without weighting in the first stage. The mixer may be included in a software-defined radio.