11.
    发明专利
    未知

    公开(公告)号:DE69834499T2

    公开(公告)日:2007-04-19

    申请号:DE69834499

    申请日:1998-12-22

    Abstract: The amplifier stage (50) comprises a first (2) and a second (3) transistor, connected in series to each other between a first (4) and a second (5) reference potential line. The first transistor (2) has a control terminal (10), connected to an input (11) of the amplifier stage (50) through a first inductor (12), a first terminal (15), connected to the second reference potential line (5) through a second inductor (16), and a third terminal (17) connected to a first terminal of the second transistor (3). The second transistor has a second terminal (21) forming an output of the amplifier stage (50), and connected to the first reference potential line (4) through a load resistor (22). To improve the noise figure, a matching capacitor (51) is connected between the control terminal (10) and the first terminal (15) of the first transistor (2).

    12.
    发明专利
    未知

    公开(公告)号:DE69834499D1

    公开(公告)日:2006-06-14

    申请号:DE69834499

    申请日:1998-12-22

    Abstract: The amplifier stage (50) comprises a first (2) and a second (3) transistor, connected in series to each other between a first (4) and a second (5) reference potential line. The first transistor (2) has a control terminal (10), connected to an input (11) of the amplifier stage (50) through a first inductor (12), a first terminal (15), connected to the second reference potential line (5) through a second inductor (16), and a third terminal (17) connected to a first terminal of the second transistor (3). The second transistor has a second terminal (21) forming an output of the amplifier stage (50), and connected to the first reference potential line (4) through a load resistor (22). To improve the noise figure, a matching capacitor (51) is connected between the control terminal (10) and the first terminal (15) of the first transistor (2).

    20.
    发明专利
    未知

    公开(公告)号:DE69819677D1

    公开(公告)日:2003-12-18

    申请号:DE69819677

    申请日:1998-02-19

    Abstract: A circuit for switching a capacitor (C) in an exclusive manner, on the selected one of a plurality of integrated amplifiers (A1, A2, ... AN) comprises a first current generator (IB) connected between a first supply node (VCC) and a first node of the circuit (H), a second current generator (IC) connected between a second supply node (GND) and a second node (L) of the circuit, electrically in parallel to the capacitor (C), an array of switches (S1, S2, ..., SN) of the same number of the integrated amplifiers, exclusively switcheable on, each connecting a directly biased diode (D1, D2, ..., DN) between the first node (H) and the second node (L), each integrated amplifier having a supply node coupled to the connecting node between a respective diode and a respective connecting switch of said array.

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