公开(公告)号：US10476162B2

公开(公告)日：2019-11-12

申请号：US15644875

申请日：2017-07-10

Applicant: WITS Co., Ltd.

Inventor： Hyo Jung Yoon ,  Hee Seung Kim ,  Jae Sun Won ,  Jae Hyuk Jang ,  Chang Hee Lee ,  Gie Hyoun Kweon ,  Jong Lae Kim

IPC: H01Q7/08 ,  H01Q1/24

Abstract: A wireless communication antenna comprises a magnetic body and coil portions. The coil portions have a solenoid shape formed around the magnetic body defining a core. The coil portions are spaced apart from each other and connected to each other in series. Magnetic fields radiated by the coil portions overlap each other and each of the coil portions comprises: a first wiring portion disposed on a first surface of the magnetic body; a second wiring portion disposed on a second surface of the magnetic body; and conductive vias interconnecting the first wiring portion and the second wiring portion.

公开(公告)号：US10560155B2

公开(公告)日：2020-02-11

申请号：US15684014

申请日：2017-08-23

Applicant: WITS Co., Ltd.

Inventor： Hee Seung Kim ,  Jae Hyuk Jang ,  Chang Hee Lee ,  Jae Sun Won ,  Hyo Jung Yoon ,  Gie Hyoun Kweon

IPC: H04B5/00 ,  G06K7/08 ,  H02M3/18

Abstract: An information transmitter includes a transmitting coil configured to receive a coil voltage to generate a magnetic field; and a signal generator configured to receive a direct current (DC) voltage and operating switches to apply the coil voltage to the transmitting coil, for a first time constant in a first current path, wherein the coil voltage includes a first value, and for a second time constant in a second current path, wherein the coil voltage includes a second value smaller than the first value, and wherein the first time constant and second time constant are different from each other.

公开(公告)号：US10573969B2

公开(公告)日：2020-02-25

申请号：US15784302

申请日：2017-10-16

Applicant: WITS CO., Ltd.

Inventor： Jae Hyuk Jang ,  Young Seung Roh ,  Hyun Jung Lee ,  Gie Hyoun Kweon ,  Jae Sun Won

IPC: H01Q7/08 ,  H01Q1/24 ,  H01Q1/22

Abstract: A wireless communication antenna includes a solenoid coil portion including a core; and a magnetic body disposed in the core and comprising magnetic pieces arranged side by side in a direction perpendicular to or a direction parallel to a direction of a magnetic flux of the coil portion.

公开(公告)号：US10553950B2

公开(公告)日：2020-02-04

申请号：US15836965

申请日：2017-12-11

Applicant: WITS Co., Ltd.

Inventor： Jae Sun Won ,  Hee Seung Kim ,  Jae Hyuk Jang ,  Chang Hee Lee ,  Gie Hyoun Kweon ,  Hyo Jung Yoon ,  Young Seung Roh

IPC: H01Q1/24 ,  H01Q7/06 ,  H01Q1/22

Abstract: An antenna module includes a wiring part including a second antenna wiring disposed to have a spiral shape on an insulating substrate and a first antenna wiring disposed in an internal region of the second antenna wiring and disposed in a solenoid structure; a first magnetic part disposed to be inserted into the center of the solenoid structure and having at least a portion exposed externally from the wiring part; and a second magnetic part coupled to the first magnetic part.

公开(公告)号：US10553949B2

公开(公告)日：2020-02-04

申请号：US15369015

申请日：2016-12-05

Applicant: WITS Co., Ltd.

Inventor： Sung Nam Cho ,  Jung Young Cho ,  Jae Hyuk Jang ,  Chang Hak Choi ,  Jeong Ki Ryoo ,  Soon Kwang Kwon

IPC: H01Q7/06 ,  H01Q1/27 ,  H01Q7/00

Abstract: A wireless communication antenna includes: a magnetic body including a plurality of bar-shaped unit ribbons arranged in columns, wherein the unit ribbons have shape anisotropy and a radiation direction on a side of the wireless communication antenna; and a solenoid coil including conductive patterns disposed around the magnetic body.

公开(公告)号：US10522913B2

公开(公告)日：2019-12-31

申请号：US15835708

申请日：2017-12-08

Applicant: WITS Co., Ltd.

Inventor： Jae Sun Won ,  Hee Seung Kim ,  Young Min Cheon ,  Gie Hyoun Kweon ,  Jae Hyuk Jang ,  Ki Won Chang ,  Chang Hee Lee ,  Hyo Jung Yoon ,  Young Seung Roh

IPC: H04B7/00 ,  H01Q7/06 ,  H04B5/00 ,  H01Q1/38

Abstract: An antenna module includes a coil part including a second antenna wiring disposed in a spiral shape on an insulating substrate and a first antenna wiring disposed in an internal region of the second antenna wiring; and a magnetic part including a second magnetic part disposed on a second surface of the insulating substrate and a first magnetic part extending from the second magnetic part, penetrating through the internal region of the second antenna wiring, and disposed on a first surface of the insulating substrate.