公开(公告)号：US20180270762A1

公开(公告)日：2018-09-20

申请号：US15692012

申请日：2017-08-31

Applicant: STMicroelectronics (Alps) SAS ,  STMicroelectronics (Grenoble 2) SAS

Inventor： Michel Ayraud ,  Serge Ramet ,  Philippe Level

IPC: H04W52/02 ,  H04B17/327 ,  H04B1/16 ,  H03D7/16 ,  H03G3/30 ,  H03B21/02

CPC classification number: H04W52/0274 ,  H03B5/1212 ,  H03B5/1278 ,  H03B21/025 ,  H03D7/166 ,  H03G3/3052 ,  H04B1/16 ,  H04B17/327 ,  Y02D70/00

Abstract: A local oscillator device includes an oscillator module including a first inductive element and a capacitive element coupled in parallel with the inductive element. A frequency divider is coupled to the oscillator module for delivering a local oscillator signal. The local oscillator device includes an autotransformer including the first inductive element and two second inductive elements respectively coupled to the terminals of the first inductive element and to two output terminals of the autotransformer, the output terminals being further coupled to input terminals of the frequency divider.

公开(公告)号：US20220278701A1

公开(公告)日：2022-09-01

申请号：US17648993

申请日：2022-01-26

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Michel Ayraud ,  Philippe Level

IPC: H04B1/00 ,  H04B1/16 ,  H04B1/30

Abstract: The present disclosure relates to a circuit including an input terminal configured to receive a first signal at a first frequency; a demodulation chain connected to the input terminal and including a low-noise amplifier having an input coupled to the terminal; a controllable variable impedance connected between a first node and a node configured to receive a reference potential, the first node being connected to the input terminal and/or to the amplifier input; and a current source configured to deliver a current at the first frequency to the first node.

公开(公告)号：US10524209B2

公开(公告)日：2019-12-31

申请号：US15692012

申请日：2017-08-31

Applicant: STMicroelectronics (Alps) SAS ,  STMicroelectronics (Grenoble 2) SAS

Inventor： Michel Ayraud ,  Serge Ramet ,  Philippe Level

IPC: H04B1/40 ,  H04W52/02 ,  H03B5/12 ,  H04B17/327 ,  H03B21/02 ,  H03D7/16 ,  H03G3/30 ,  H04B1/16

Abstract: A local oscillator device includes an oscillator module including a first inductive element and a capacitive element coupled in parallel with the inductive element. A frequency divider is coupled to the oscillator module for delivering a local oscillator signal. The local oscillator device includes an autotransformer including the first inductive element and two second inductive elements respectively coupled to the terminals of the first inductive element and to two output terminals of the autotransformer, the output terminals being further coupled to input terminals of the frequency divider.

公开(公告)号：US11515899B2

公开(公告)日：2022-11-29

申请号：US17648993

申请日：2022-01-26

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Michel Ayraud ,  Philippe Level

IPC: H04B14/06 ,  H04B1/00 ,  H04B1/30 ,  H04B1/16

Abstract: The present disclosure relates to a circuit including an input terminal configured to receive a first signal at a first frequency; a demodulation chain connected to the input terminal and including a low-noise amplifier having an input coupled to the terminal; a controllable variable impedance connected between a first node and a node configured to receive a reference potential, the first node being connected to the input terminal and/or to the amplifier input; and a current source configured to deliver a current at the first frequency to the first node.