公开(公告)号：US10547098B2

公开(公告)日：2020-01-28

申请号：US15800887

申请日：2017-11-01

Applicant: WITS Co., Ltd.

Inventor： Sang Beom Lee ,  Hyung Wook Cho ,  Jun Seung Yi ,  Yu Jin Lee ,  Jae Suk Sung ,  Dae Ki Lim ,  Seung Hun Ryu ,  Ki Won Chang ,  Jae Hyoung Cho ,  Si Hyung Kim

IPC: H01Q1/36 ,  H01Q7/00 ,  H01Q1/22 ,  H01P7/00 ,  H01F38/14 ,  H04B5/00 ,  H01Q25/00

Abstract: A double loop antenna includes a source loop comprising: a spiral-shaped conductive source coil pattern disposed on a top surface of a board, and a source capacitor pattern comprising symmetrical conductive patterns disposed on the top surface and a bottom surface of the board; and a resonance loop comprising: a spiral-shaped conductive resonance coil pattern disposed on the bottom surface of the board, and a resonance capacitor pattern comprising symmetrical conductive patterns disposed on the top surface and the bottom surface of the board, wherein the source coil pattern and the resonance coil pattern are formed on different surfaces of the board.

公开(公告)号：US10469133B2

公开(公告)日：2019-11-05

申请号：US15785955

申请日：2017-10-17

Applicant: WITS Co., Ltd.

Inventor： Dae Ung Ahn ,  Hyung Wook Cho ,  Jun Seung Yi ,  Yu Jin Lee ,  Seung Hun Ryu ,  Sang Beom Lee ,  Dae Ki Lim ,  Jae Hyoung Cho ,  Si Hyung Kim

IPC: H01Q1/24 ,  H01Q7/00 ,  H04B5/00 ,  H01Q19/28 ,  H01Q1/22 ,  H01F5/00 ,  H01F27/28 ,  H01F38/14

Abstract: An antenna device includes a first wiring may include a spiral shape forming an empty region therein, and a second wiring disposed inside or outside of the first wiring. The second wiring is disposed to be spaced apart from the first wiring, and includes a first ring-shaped wiring and a second ring-shaped wiring, which are concentric to each other.

公开(公告)号：US10403979B2

公开(公告)日：2019-09-03

申请号：US15067471

申请日：2016-03-11

Applicant: WITS Co., Ltd.

Inventor： Seung Hun Ryu ,  Jeong Ki Ryoo ,  Ju Hyoung Park ,  Jong Lae Kim

IPC: H01Q7/00 ,  H01Q21/28 ,  H01Q21/24

Abstract: An antenna apparatus includes a first substrate, and a conductor pattern disposed on a surface of the first substrate and forming magnetic flux in a normal direction with respect to the surface of the first substrate. The antenna apparatus also includes a second substrate spaced apart from the first substrate, and a member disposed on the second substrate. The antenna apparatus further includes a coil wound around the member, and a current feeder configured to provide a first current to the conductor pattern and a second current to the coil.

公开(公告)号：US11228085B2

公开(公告)日：2022-01-18

申请号：US16723094

申请日：2019-12-20

Applicant: WITS Co., Ltd.

Inventor： Sang Beom Lee ,  Hyung Wook Cho ,  Jun Seung Yi ,  Yu Jin Lee ,  Jae Suk Sung ,  Dae Ki Lim ,  Seung Hun Ryu ,  Ki Won Chang ,  Jae Hyoung Cho ,  Si Hyung Kim

IPC: H01Q7/00 ,  H01Q1/22 ,  H01P7/00 ,  H01F38/14 ,  H04B5/00 ,  H01Q5/378 ,  H01F27/40 ,  H01F27/28 ,  H01F5/00 ,  H01Q25/00

Abstract: A double loop antenna includes a source loop comprising: a spiral-shaped conductive source coil pattern disposed on a top surface of a board, and a source capacitor pattern comprising symmetrical conductive patterns disposed on the top surface and a bottom surface of the board; and a resonance loop comprising: a spiral-shaped conductive resonance coil pattern disposed on the bottom surface of the board, and a resonance capacitor pattern comprising symmetrical conductive patterns disposed on the top surface and the bottom surface of the board, wherein the source coil pattern and the resonance coil pattern are formed on different surfaces of the board.