公开(公告)号：US11041895B1

公开(公告)日：2021-06-22

申请号：US16851411

申请日：2020-04-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Hwan Hwang ,  Duk Soo Kwon ,  Chang Hee Hyoung ,  Jong Hwa Kwon ,  Hyung Do Choi

IPC: G01R29/08 ,  G01R29/10

Abstract: A probe antenna, a probing system, and a power density measuring method to measure a power density of a near-field electromagnetic field are disposed. The probe antenna includes a board, and a conductor transmitting line formed on the board, having a constant line width, and formed in a polygonal shape or in a closed-curve shape. The conductor transmitting line is divided into a first transmitting line and a second transmitting line that are separated from each other, and includes a first receiving port formed with one end of the first transmitting line and one end of the second transmitting line and a second receiving port formed with another end of the first transmitting line and another end of the second transmitting line.

公开(公告)号：US09525310B2

公开(公告)日：2016-12-20

申请号：US13655265

申请日：2012-10-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Chang Hee Hyoung ,  Sung Weon Kang ,  Jung Hwan Hwang ,  In Gi Lim ,  Jung Bum Kim ,  Kyung Soo Kim ,  Kyung Hwan Park ,  Hyung-Il Park ,  Tae Young Kang ,  Sung Eun Kim ,  Tae Wook Kang ,  Byoung Gun Choi

IPC: H05B41/36 ,  H02J17/00

CPC classification number: H02J50/30 ,  H02J7/025 ,  H02J17/00 ,  H02J50/40 ,  H02J50/60

Abstract: Provided are an energy harvesting device capable of generating electric energy by effectively obtaining an electromagnetic wave emitted from an indoor lighting device and a power control system of a lighting device capable of performing self-power generation by using the energy harvesting device as a power source. The energy harvesting device using an electromagnetic wave according to an exemplary embodiment of the present disclosure includes: an interface unit made of a conductive material and configured to capture a conductive interference signal transferred through a conductive member of a lighting device; and a rectifier circuit unit configured to rectify the captured conductive interference signal to convert the rectified conductive interference signal to direct current power.

Abstract translation: 提供一种能够通过有效地获得从室内照明装置发出的电磁波和能够通过使用能量采集装置作为电源来进行自发电的照明装置的电力控制系统来发电的能量收集装置。 根据本公开的示例性实施例的使用电磁波的能量收集装置包括：由导电材料制成并被配置为捕获通过照明装置的导电构件传送的导电干扰信号的接口单元; 以及整流电路单元，被配置为对所捕获的导电干扰信号进行整流，以将整流的导电干扰信号转换成直流电力。

公开(公告)号：US11747380B2

公开(公告)日：2023-09-05

申请号：US17734298

申请日：2022-05-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Chang Hee Hyoung ,  Jong Hwa Kwon ,  Jung Hwan Hwang

IPC: G01R29/08 ,  H01Q15/18 ,  G01R31/00

CPC classification number: G01R29/0821 ,  G01R31/001 ,  H01Q15/18

Abstract: An apparatus for electromagnetic wave evaluation may include: an electromagnetic wave non-reflecting outer structure in which electromagnetic wave absorbers are installed on interior walls and an evaluation space is formed therein; a building-simulating structure which is installed in the evaluation space inside the electromagnetic wave non-reflecting outer structure and in which electromagnetic wave absorbers capable of adjusting a quality factor are installed; a transmitting end installed inside or outside the building-simulating structure in the evaluation space and transmitting an electromagnetic wave; and a receiving end installed outside or inside the building-simulating structure in the evaluation space.

公开(公告)号：US11668741B2

公开(公告)日：2023-06-06

申请号：US17547815

申请日：2021-12-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Chang Hee Hyoung ,  Jong Hwa Kwon ,  Jung Hwan Hwang

IPC: G01R27/28 ,  G01R29/10

CPC classification number: G01R29/105

Abstract: An electromagnetic wave measurement system may include: a reference receiving device; a plurality of auxiliary receiving devices; and a control device connected to the reference receiving device and the plurality of auxiliary receiving devices, wherein the reference receiving device has a wider dynamic range than the plurality of auxiliary receiving devices, the control device collects a frequency-specific measurement value from each of the reference receiving device and the plurality of auxiliary receiving devices, and the frequency-specific measurement value of each of the auxiliary receiving devices is calibrated based on the frequency-specific measurement value of the reference receiving device.

公开(公告)号：US09948404B2

公开(公告)日：2018-04-17

申请号：US15402039

申请日：2017-01-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Chang Hee Hyoung

IPC: H04B5/00 ,  H04B7/00 ,  H04B13/00 ,  H04W4/00

CPC classification number: H04B13/005 ,  H04W4/80

Abstract: Provided is a human body communication system including a master device configured to output a first signal based on a first data signal and a signal having a pattern in which a waveform of a first carrier wave and a waveform of a second carrier wave are repeated; and a slave device configured to receive the first signal to determine a carrier wave having a low level of attenuation among the first carrier wave and the second carrier wave, and output a second signal based on the determined carrier wave and a second data signal.