公开(公告)号：US20210126348A1

公开(公告)日：2021-04-29

申请号：US17140599

申请日：2021-01-04

Applicant: DONGWOO FINE-CHEM CO., LTD. ,  POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION

Inventor： Jong Min KIM ,  Han Sub RYU ,  Dong Pil PARK ,  Won Bin HONG

IPC: H01Q1/24 ,  H04M1/02 ,  H01Q1/38 ,  H01Q1/46

Abstract: An antenna structure according to an embodiment of the present invention includes a film antenna including a dielectric layer, an upper electrode layer disposed on an upper surface of the dielectric layer and including a radiation pattern, a transmission line, and a ground pad, and a lower ground layer disposed on a lower surface of the dielectric layer, and a flexible circuit board including a core layer, a power supply wiring layer disposed on a lower surface of the core layer and electrically connected to the transmission line, and a ground plate disposed on an upper surface of the core layer and disposed in overlapping with the power supply wiring layer in a planar direction. Thereby, it is possible to reduce a radiation signal generated from the power supply wiring through the ground plate, suppress a noise of the antenna and increase radiation efficiency.

公开(公告)号：US20220200134A1

公开(公告)日：2022-06-23

申请号：US17690313

申请日：2022-03-09

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Ho Dong YOON ,  Yun Seok OH ,  Han Sub RYU ,  Won Hee LEE

IPC: H01Q1/24 ,  H01Q1/36 ,  H01Q21/06 ,  H01Q9/04

Abstract: An antenna device according to an embodiment of the present invention includes a dielectric layer, a first antenna unit having a bent structure and extending along an upper surface, a lateral surface and a lower surface of the dielectric layer, and a second electrode pattern having a bent structure and extending along the lateral surface and the lower surface of the dielectric layer.

公开(公告)号：US20220029278A1

公开(公告)日：2022-01-27

申请号：US17492807

申请日：2021-10-04

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Han Sub RYU ,  Dong Pil PARK ,  Yun Seok OH

IPC: H01Q1/36 ,  H01Q1/48

Abstract: An antenna device according to an embodiment of the present disclosure includes a dielectric layer, a first electrode layer disposed on an upper surface of the dielectric layer, the first electrode layer including a radiator and having a first mesh structure, and a second electrode layer disposed on a lower surface of the dielectric layer, the second electrode layer having a second mesh structure. The first mesh structure and the second mesh structure are aligned to be offset or staggered from each other with respect to the dielectric layer in a planar view.

公开(公告)号：US20200266525A1

公开(公告)日：2020-08-20

申请号：US16865654

申请日：2020-05-04

Applicant: DONGWOO FINE-CHEM CO., LTD. ,  POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION

Inventor： Jong Min KIM ,  Han Sub RYU ,  Dong Pil PARK ,  Won Bin HONG

IPC: H01Q1/24 ,  H01Q1/38 ,  H01Q5/307 ,  H01Q9/04

Abstract: A film antenna according to an embodiment of the present invention includes a dielectric layer, and a plurality of radiation patterns on a top surface of the dielectric layer. The plurality of radiation patterns has different resonance frequencies on the same plane. The radiation patterns of different frequency bands are arranged in the film antenna to provide a broadband communication.

公开(公告)号：US20200251813A1

公开(公告)日：2020-08-06

申请号：US16854415

申请日：2020-04-21

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Han Sub RYU ,  Gi Hwan AHN ,  Dong Pil PARK ,  Sung Ho BAEK

IPC: H01Q1/38 ,  H01Q1/40 ,  H04M1/02

Abstract: An antenna device includes a dielectric layer and a radiation electrode on an upper surface of the dielectric layer. The radiation electrode includes a plurality of electrode lines therein. The radiation electrode has a visibility index in a range from −1.4 to 1.9. An electrode visibility is suppressed and a signaling sensitivity is enhanced from the radiation electrode. A display device including the antenna device is also provided.

公开(公告)号：US20200243959A1

公开(公告)日：2020-07-30

申请号：US16852912

申请日：2020-04-20

Applicant: DONGWOO FINE-CHEM CO., LTD. ,  POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION

Inventor： Han Sub RYU ,  Yun Seok OH ,  Young Jun LEE ,  Won Bin HONG

IPC: H01Q1/38 ,  H01Q1/22 ,  H01Q9/04

Abstract: An antenna structure includes a dielectric layer, a radiation pattern on the dielectric layer and a signal pad on the dielectric layer. The signal pad includes a bonding region that is electrically connected to the radiation pattern and is configured to be bonded to an external circuit structure, and a margin region adjacent to the bonding region. Impedance mismatching is prevented by the margin region so that radiation efficiency is improved.

公开(公告)号：US20200076035A1

公开(公告)日：2020-03-05

申请号：US16552006

申请日：2019-08-27

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Yoon Ho HUH ,  Han Sub RYU ,  Yun Seok OH

IPC: H01P3/08 ,  H01Q1/22 ,  H01Q1/38 ,  H05K1/02 ,  H05K1/18

Abstract: A film transmission line includes a dielectric layer including at least one of a liquid crystal polymer (LCP) structure or a cyclo olefin polymer (COP) structure, and an electrode line on the dielectric layer. A signal loss level (S21) defined of the film transmission line is −1.5 dB or more at a frequency in a range from 20 GHz to 30 GHz. The film transmission line may be applied to a high frequency thin film antenna and an image display device.

公开(公告)号：US20230327322A1

公开(公告)日：2023-10-12

申请号：US18131922

申请日：2023-04-07

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Dae Kyu KIM ,  In Kak SONG ,  Han Sub RYU

IPC: H01Q1/24 ,  H01Q1/38

CPC classification number: H01Q1/243 ,  H01Q1/38

Abstract: An antenna structure according to an embodiment includes an antenna device including an antenna unit, a circuit board electrically connected to the antenna unit, an insulating layer covering the antenna device and a portion of the circuit board, and an air layer formed between the antenna device and the insulating layer to partially cover the antenna unit.

公开(公告)号：US20230231298A1

公开(公告)日：2023-07-20

申请号：US18122868

申请日：2023-03-17

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Byung Jin CHOI ,  Han Sub RYU ,  Dong Pil PARK

IPC: H01Q1/24 ,  H01Q1/50 ,  H01R24/60

CPC classification number: H01Q1/243 ,  H01Q1/50 ,  H01R24/60

Abstract: An antenna package according to an embodiment includes an antenna device comprising an antenna unit, and a connector electrically connected to the antenna unit. The connector includes an insulator having a dielectric constant from 2 to 3.5 and a loss tangent from 0.0015 to 0.007 measured by a resonance method at 10 GHz, and a conductive connection structure insulated by the insulator and electrically connected to the antenna unit.

公开(公告)号：US20230070750A1

公开(公告)日：2023-03-09

申请号：US17986075

申请日：2022-11-14

Applicant: DONGWOO FINE-CHEM CO., LTD.

Inventor： Han Sub RYU ,  Dong Pil PARK ,  Byung Jin CHOI

IPC: G01R29/08 ,  G01R29/10

Abstract: An apparatus for inspecting an antenna includes a stage including a ground on which an antenna device is disposed, an inspection board configured to be in contact with and connected to the antenna device, a connection maintaining unit for maintaining a contact and connection between the antenna device and the inspection board, and an inspection unit mounted or connected to the inspection board to inspect the antenna device.