公开(公告)号：ITUA20161628A1

公开(公告)日：2017-09-14

申请号：ITUA20161628

申请日：2016-03-14

Applicant: ST MICROELECTRONICS SRL

Inventor： GUERRA RANIERI ,  LAROSA ROBERTO ,  PALMISANO GIUSEPPE

IPC: H04B1/16 ,  H03D1/22 ,  H04W52/02

公开(公告)号：ITMI20111632A1

公开(公告)日：2013-03-10

申请号：ITMI20111632

申请日：2011-09-09

Applicant: ST MICROELECTRONICS SRL

Inventor： GIAMMELLO VITTORIO ,  PALMISANO GIUSEPPE ,  RAGONESE EGIDIO

公开(公告)号：ITVA20050006A1

公开(公告)日：2006-08-09

申请号：ITVA20050006

申请日：2005-02-08

Applicant: ST MICROELECTRONICS SRL

Inventor： CASTORINA ALESSANDRO ,  GIRLANDO GIOVANNI ,  MOTTA CARLA ,  PALMISANO GIUSEPPE

公开(公告)号：IT1305642B1

公开(公告)日：2001-05-15

申请号：ITVA980013

申请日：1998-06-23

Applicant: ST MICROELECTRONICS SRL

Inventor： PALMISANO GIUSEPPE ,  PANNISI SALVATORE

IPC: H03G1/00

Abstract: By selecting a particular configuration of an input stage of a low noise RF amplifier, an optimal combination of linearity and input matching is achieved upon selecting a certain gain factor from a set of fixed step values. Each input stage configuration defines an input matching network specifically suitable to operate at a certain RF frequency. An RF signal input inductor is selectively associated to an input coupling capacitor, and a second degeneration inductor of a gain transistor of the input stage having a different gain value. The selection of a certain configuration is made through at least one switch through which a bias current generator is switched to the programmably selected input stage.

公开(公告)号：IT1302276B1

公开(公告)日：2000-09-05

申请号：ITMI982076

申请日：1998-09-25

Applicant: ST MICROELECTRONICS SRL

Inventor： FILORAMO PIETRO ,  COSENTINO GAETANO ,  PALMISANO GIUSEPPE

IPC: G05F3/26

Abstract: A current mirror circuit is provided with recovery having high output impedance. The current mirror includes a differential stage having a pair of transistors, and a voltage feedback loop which is stabilized and closed on a first one of the transistors of the differential stage. A second one of the transistors of the differential stage is connected, by its base terminal, to the collector terminal of an output transistor and, by its collector terminal, to the supply voltage. Moreover, the circuit includes a positive feedback loop which has the second transistor of the differential stage and the output transistor. A low-impedance circuit branch is connected to the base terminal of the second transistor of the differential stage and to the collector terminal of the output transistor.