公开(公告)号：US10992392B2

公开(公告)日：2021-04-27

申请号：US16122970

申请日：2018-09-06

Applicant: NXP B.V.

Inventor： Liesbeth Gommé ,  Anthony Kerselaers

IPC: H04B13/00 ,  G01R33/02 ,  G01V3/08 ,  H04B5/00 ,  H04B10/00

Abstract: One example discloses a first near-field electromagnetic induction (NFEMI) device, including: a controller configured to be coupled to an NFEMI antenna and to a structure; wherein the NFEMI antenna includes electric (E) near-field and magnetic (H) near-field generating and/or receiving portions; wherein the controller is configured to modulate a ratio of energy sent to and/or received from the electric and magnetic portions; wherein the controller is configured to receive a signal corresponding to whether the structure is between the first NFEMI device and a second NFEMI device; and wherein the controller is configured to decrease the ratio of energy sent to and/or received from the electric (E) portion as compared to energy sent to and/or received from the magnetic (H) portion if the structure is between the first and second NFEMI devices.

公开(公告)号：US10978791B2

公开(公告)日：2021-04-13

申请号：US15972614

申请日：2018-05-07

Applicant: NXP B.V.

Inventor： Liesbeth Gommé ,  Anthony Kerselaers

IPC: H01Q1/27 ,  H01Q7/00 ,  H01Q9/16

Abstract: One example discloses a combination antenna, including a near-field antenna, having a first portion and a second portion; and a far-field antenna, having a cavity; wherein the first portion of the near-field antenna structure is inside the cavity and the second portion is outside of the cavity.

公开(公告)号：US10965346B2

公开(公告)日：2021-03-30

申请号：US15602160

申请日：2017-05-23

Applicant: NXP B.V.

Inventor： Anthony Kerselaers ,  Pieter Verschueren

IPC: H04B5/00 ,  G01N27/24 ,  H01Q1/52

Abstract: A near-field device, including: a near-field receiver coupled to a near-field receiver antenna and a decoder circuit; wherein the near-field receiver antenna is configured to be capacitively coupled at a first location on a conductive structure; wherein the near-field receiver antenna is configured to receive a near-field signal from the conductive structure through the receiver's capacitive coupling; and wherein the decoder circuit is configured to detect variations in the near-field signal.

公开(公告)号：US10826627B1

公开(公告)日：2020-11-03

申请号：US16840495

申请日：2020-04-06

Applicant: NXP B.V.

Inventor： Anthony Kerselaers ,  Liesbeth Gommé

IPC: H04B5/00 ,  H04B17/20 ,  H01Q7/00

Abstract: One example discloses a near-field measuring device, including: a near-field antenna; a tuning circuit galvanically coupled to the near-field antenna and configured to set a resonant frequency and/or a quality factor of the measuring device; and a current sensor inductively coupled to the near-field antenna and configured to generate a signal in response to a current flowing through the galvanic coupling between the near-field antenna and the tuning circuit; wherein the signal represents a measurement of non-propagating quasi-static near-field signals received by the near-field antenna.

公开(公告)号：US10812199B1

公开(公告)日：2020-10-20

申请号：US16553457

申请日：2019-08-28

Applicant: NXP B.V.

Inventor： Anthony Kerselaers ,  Liesbeth Gommé

IPC: H04B17/10 ,  H04B5/00 ,  H01Q7/00 ,  H04B17/318 ,  H04B1/16

Abstract: One example discloses a near-field wireless device, including: a near-field antenna; a variable current source; a controller coupled to the near-field antenna and the variable current source; wherein the controller is configured to measure a transmit quality-factor (Qtx) of the near-field antenna; and wherein the controller is configured to increase current sent by the variable current source to the near-field antenna if the measured Qtx is lower than a minimum Qtx.

公开(公告)号：US10812149B1

公开(公告)日：2020-10-20

申请号：US16744417

申请日：2020-01-16

Applicant: NXP B.V.

Inventor： Anthony Kerselaers ,  Liesbeth Gommé

IPC: H04B5/00 ,  H01Q7/06 ,  A63F9/24

Abstract: One example discloses a multi-mode near-field device configured to be coupled to a conductive host surface, including: a conductive antenna surface configured as a near-field electrically inductive (NFEI) antenna; wherein the conductive antenna surface includes a first region and a second region; wherein the first region is configured to be capacitively coupled to the conductive host surface; wherein the second region is configured to be galvanically or capacitively coupled to the conductive host surface; wherein the multi-mode device is configured to operate in, a first mode when the second region is galvanically coupled to the conductive host surface; and a second mode when the second region is capacitively coupled to the conductive host surface.

公开(公告)号：US20200244315A1

公开(公告)日：2020-07-30

申请号：US16260322

申请日：2019-01-29

Applicant: NXP B.V.

Inventor： Anthony Kerselaers

IPC: H04B5/00 ,  H02J50/50 ,  H02J50/40

Abstract: One example discloses a near-field communications device, including: an energy harvesting circuit configured to be coupled to a near-field antenna that is responsive to non-propagating quasi-static near-field energy; wherein the harvesting circuit is configured to harvest energy from the non-propagating quasi-static near-field energy; and wherein the harvesting circuit includes a harvesting filter configured to input a first set of near-field energy and output a second set of near-field energy; and wherein the second set of near-field energy is a sub-set of the first set of near-field energy.

公开(公告)号：US10381995B1

公开(公告)日：2019-08-13

申请号：US16040179

申请日：2018-07-19

Applicant: NXP B.V.

Inventor： Anthony Kerselaers ,  Liesbeth Gommé

IPC: H04B1/10 ,  H03G3/34 ,  B60L11/18 ,  G01R29/08

Abstract: An interference sensor device is disclosed. The interference sensor device includes a first conductive plate, a second conductive plate aligned parallel to the first conductive plate, a non-conductive matter between the first conductive plate and the second conductive plate and a coil electrically coupled to the first conductive plate and the second conductive plate.

公开(公告)号：US10355791B1

公开(公告)日：2019-07-16

申请号：US15949231

申请日：2018-04-10

Applicant: NXP B.V.

Inventor： Anthony Kerselaers ,  Liesbeth Gommé

IPC: H04W72/00 ,  H04B17/309 ,  H04W52/26 ,  H04W24/08

Abstract: One example discloses a circuit for varying a quality-factor of a wireless device: wherein the wireless device includes an antenna tuning circuit and a communications signal interface; the circuit including, a quality-factor circuit having a feedback circuit; wherein the feedback circuit is configured to be coupled between the antenna tuning circuit and the communications signal interface; wherein the quality-factor circuit is configured to measure an antenna system bandwidth of the wireless device; and wherein the feedback circuit is configured to apply positive feedback to the antenna tuning circuit if the measured bandwidth is greater than a maximum communication signal bandwidth.

公开(公告)号：US10320086B2

公开(公告)日：2019-06-11

申请号：US15146665

申请日：2016-05-04

Applicant: NXP B.V.

Inventor： Anthony Kerselaers ,  Liesbeth Gommé

IPC: H01Q1/22 ,  H01Q1/24 ,  H01Q7/00 ,  H01Q7/08 ,  H04B5/00 ,  H01Q21/00 ,  H01Q1/27 ,  H01Q1/52 ,  H01Q9/28

Abstract: One example discloses a near-field electromagnetic induction (NFEMI) antenna, including: an electric antenna including a first electrically conductive surface; a magnetic antenna including a first coil (L1) coupled to a second coil (L2); a first feeding connection coupled to one end of the first coil; a second feeding connection coupled to another end of the first coil and one end of the second coil; wherein a another end of the second coil is connected to the electrically conductive surface; and a magnetic permeable material coupled to one side of the magnetic antenna and configured to be placed between the magnetic antenna and a set of electric components.