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IF-noise-shaping transistorized current-mode lowpass filter utilizing cross coupled transistors
Zhicheng Lin; Pui-In Mak; Rui Paulo da Silva Martins
2016-04-05
Rights HolderUNIVERSITY OF MACAU
Date Available2016-04-05
CountryUnited States
Subtype发明专利
Abstract

An IF-noise-shaping transistorized current-mode lowpass filter is applied to quadrature in a balanced circuit. A first pair of transistors receiving current inputs from a mixer are connected so that each of the first pair of transistors has its gate cross coupled to the output of the other of the first pair of transistors. A second pair of transistors are connected in series with respected outputs of respective ones of the first pair of transistors and having gates connected to a first common voltage node, and a capacitance is used to connect the current inputs of one of the first and second pairs of transistors. An active inductive load is connected between the current inputs of one of the first and second pairs of transistors.

Application Date2014-04-17
Patent NumberUS9306540B2
Application NumberUS14255087
Open (Notice) NumberUS9306540B2
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Document TypePatent
专题DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
AffiliationUNIVERSITY OF MACAU
推荐引用方式
GB/T 7714
Zhicheng Lin,Pui-In Mak,Rui Paulo da Silva Martins. IF-noise-shaping transistorized current-mode lowpass filter utilizing cross coupled transistors. US9306540B2[P]. 2016-04-05.
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