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DC-OFFSET CANCELLED PROGRAMMABLE GAN ARRAY FOR LOW-VOLTAGE WIRELESS LAN SYSTEM AND METHOD USING THE SAME
Pui-In Mak; Seng-Pan U; Rui P. Martins
2011-05-24
Rights HolderUniversity of Macau
CountryUnited States
Subtype发明专利
Abstract

An amplifier circuit includes a transconductance amplifier at an input side of the amplifier circuit, a transimpedance amplifier connected to an output of the transconductance amplifier, and a voltage amplifier connected to an output of the transimpedance amplifier. The transconductance amplifier and the transimpedance amplifier form a low-impedance node at an interface thereof. A feedback circuit is connected between an output of the voltage amplifier and the low-impedance node between the transconductance amplifier and the transimpedance amplifier. The transconductance amplifier, the transimpedance amplifier, and the voltage amplifier form a main amplifier stage. The feedback circuit senses an imbalance in an output of the main amplifier stage, whereby a correction signal is integrated and negatively fed back to the low-impedance node between the transconductance amplifier and the transimpedance amplifier.

Application Date2009-01-16
Patent NumberUS20100182080A1
Language英语
Fulltext Access
Document TypePatent
CollectionFaculty of Science and Technology
AffiliationUniversity of Macau
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Pui-In Mak,Seng-Pan U,Rui P. Martins. DC-OFFSET CANCELLED PROGRAMMABLE GAN ARRAY FOR LOW-VOLTAGE WIRELESS LAN SYSTEM AND METHOD USING THE SAME. US20100182080A1[P]. 2011-05-24.
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