公开(公告)号：US11501093B2

公开(公告)日：2022-11-15

申请号：US16773191

申请日：2020-01-27

Applicant: STMicroelectronics Austria GmbH

Inventor： Thomas Poetscher ,  Michael Gugganig

IPC: H04B5/02 ,  G06K7/00 ,  H04B17/12 ,  H04W4/80 ,  G06K7/10 ,  H04B5/00 ,  G08B13/24 ,  H04W52/00

Abstract: In an embodiment, a method of managing an output power delivered by an antenna of a NFC apparatus includes: providing a matching circuit with a first tuning capacitive network coupled in series between a NFC controller and the antenna and with a second tuning capacitive network coupled to the NFC controller and the antenna and to a reference terminal, wherein the first or second tuning capacitive network has a variable capacitive value; determining tuning capacitive values of the first tuning capacitive networks to adjust a delivered output power at a desired level; and setting the tuning capacitive values of the first tuning capacitive network to the tuning capacitive values.

公开(公告)号：US20200242309A1

公开(公告)日：2020-07-30

申请号：US16773191

申请日：2020-01-27

Applicant: STMicroelectronics Austria GmbH

Inventor： Thomas Poetscher ,  Michael Gugganig

IPC: G06K7/00 ,  H04B5/00 ,  G06K7/10 ,  H04W4/80 ,  H04B17/12

Abstract: In an embodiment, a method of managing an output power delivered by an antenna of a NFC apparatus includes: providing a matching circuit with a first tuning capacitive network coupled in series between a NFC controller and the antenna and with a second tuning capacitive network coupled to the NFC controller and the antenna and to a reference terminal, wherein the first or second tuning capacitive network has a variable capacitive value; determining tuning capacitive values of the first tuning capacitive networks to adjust a delivered output power at a desired level; and setting the tuning capacitive values of the first tuning capacitive network to the tuning capacitive values.