公开(公告)号：US20140176369A1

公开(公告)日：2014-06-26

申请号：US13886316

申请日：2013-05-03

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Se Hwan CHOI ,  Jae Young LEE

IPC: H01Q1/50

CPC classification number: H01Q1/50 ,  H01Q9/0407 ,  H01Q9/0435

Abstract: A patch antenna having a single patch fed with multiple signals is provided. The patch antenna includes: a first patch; a first feeder and a second feeder which are connected to the first patch; and a second patch which is parallel to the first patch. Accordingly, since multiple signals can be fed into a single patch, a MIMO antenna can be embodied by using a patch antenna which has high isolation between feeders without increasing its size.

Abstract translation: 提供具有馈送多个信号的单个补丁的贴片天线。 贴片天线包括：第一贴片; 连接到第一贴片的第一馈送器和第二馈送器; 以及与第一贴片平行的第二贴片。 因此，由于可以将多个信号馈送到单个贴片中，所以可以通过使用在馈线之间具有高隔离度而不增加其尺寸的贴片天线来实现MIMO天线。

公开(公告)号：US20250085323A1

公开(公告)日：2025-03-13

申请号：US18519288

申请日：2023-11-27

Applicant: Korea Electronics Technology Institute

Inventor： Seok Yeon HONG ,  Se Hwan CHOI ,  Seung Goo NAM

IPC: G01R29/08

Abstract: There is provided an antenna beam detection and monitoring apparatus which uses a beam intensity detection sheet with patterned coupling lines. The antenna beam detection apparatus according to an embodiment includes: a sheet which is disposed on an upper end of a beam radiation surface of an antenna and has a plurality of coupling lines formed therein to allow beams radiated from the antenna to be coupled thereto; and a plurality of detectors configured to measure intensities of beams coupled to the coupling lines, respectively, by using the beams radiated from the antenna. Accordingly, it is possible to monitor performance of an antenna in real time with a small-sized device and a low cost even when the antenna is operating.

公开(公告)号：US20150138035A1

公开(公告)日：2015-05-21

申请号：US14176465

申请日：2014-02-10

Applicant: Korea Electronics Technology Institute ,  Samsung Electronics Co., Ltd.

Inventor： Jae Sup LEE ,  Ho Jun LEE ,  Se Hwan CHOI

IPC: H01Q9/04

CPC classification number: H01Q9/0421 ,  H01Q9/045

Abstract: A microstrip patch antenna includes a via-hole pad including via-holes, a patch disposed on the via-hole pad, a feeding via-hole disposed at a side of the patch through the patch and the via-hole pad, and a shorting via-hole disposed at a side of the patch, and configured to connect the patch and a ground unit.

Abstract translation: 微带贴片天线包括通孔焊盘，其包括通孔，布置在通孔焊盘上的贴片，通过贴片和通孔焊盘设置在贴片一侧的馈电通孔，以及短路 通孔，其设置在所述贴片的一侧，并且被配置为连接所述贴片和接地单元。

公开(公告)号：US20240072451A1

公开(公告)日：2024-02-29

申请号：US18135352

申请日：2023-04-17

Applicant: Korea Electronics Technology Institute

Inventor： Seung Goo NAM ,  Se Hwan CHOI

IPC: H01Q15/00 ,  H01Q3/44

CPC classification number: H01Q15/0013 ,  H01Q3/44

Abstract: There is provided an RIS with LC. According to an embodiment, an RIS includes: a plurality of RIS elements; and an RIS controller configured to control the RIS elements to steer an RF signal entering, and the RIS element includes: a first substrate; a second substrate; an antenna disposed between the first substrate and the second substrate; a ground disposed between the first substrate and the second substrate; and an LC phase shifter disposed between the antenna and the ground to change a phase of the RF signal entering. Accordingly, a phase shifter for changing a phase of an RF signal entering is implemented by using LC, so that an RIS may be implemented on a transparent window without obstructing light or a field of vision, and also, an outdoor reflect mode and an indoor transmit mode may be supported by one RIS.

公开(公告)号：US20210391915A1

公开(公告)日：2021-12-16

申请号：US17337779

申请日：2021-06-03

Applicant: Korea Electronics Technology Institute

Inventor： Se Hwan CHOI ,  Kwang Ho AHN

IPC: H04B7/155 ,  H04B7/0413

Abstract: A repeater is provided. The repeater includes: a hybrid butler matrix configured to perform beamforming of a MIMO antenna for transmitting and receiving a base station signal; a hybrid butler matrix configured to perform beamforming of a MIMO antenna for transmitting and receiving a user terminal signal; and a signal processor configured to amplify a signal to be transmitted and received through the hybrid butler matrix. Accordingly, it is easy to manufacture a repeater, heat emission and power consumption can be reduced, and a cost of production can be reduced.