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：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.

公开(公告)号：US10567042B2

公开(公告)日：2020-02-18

申请号：US15806703

申请日：2017-11-08

Applicant: WITS Co.. Ltd.

Inventor： Dae Ung Ahn ,  Si Hyung Kim ,  Hyeon Gil Nam ,  Ki Won Chang ,  Yu Jin Lee ,  Dae Ki Lim

IPC: H04B5/00 ,  H05K1/02 ,  H01F5/00

Abstract: A coil module may include: a board; an input/output terminal unit formed on the board; and a coil for near field communications (NFC) disposed on one, or a plurality of, surface(s) of the board and connected to the input/output terminal unit, wherein the coil for NFC includes a first pattern portion having one end connected to the input/output terminal unit and disposed on the board to rotate or turn in one direction, a second pattern portion connected to the first pattern portion and traversing an internal area of the first pattern portion to divide the internal area of the first pattern portion into at least two portions, and a third pattern portion having one end connected to the second pattern portion and the other end connected to the input/output terminal unit.