公开(公告)号：US10193220B2

公开(公告)日：2019-01-29

申请号：US15064952

申请日：2016-03-09

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Juyul Lee ,  Jinup Kim ,  Myung-Don Kim

IPC: H01Q1/52

Abstract: Disclosed is an antenna array, including: a first antenna; a second antenna; and a dielectric substance, of which a height is determined based on a distance between the first and second antennas and forms of beam patterns of the first and second antennas. According to the antenna array according to the exemplary embodiments of the present invention, it is possible to decrease coupling between the antennas.

公开(公告)号：US11569856B2

公开(公告)日：2023-01-31

申请号：US17543063

申请日：2021-12-06

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kyungwon Kim ,  Heon KooK Kwon ,  Myung-Don Kim

IPC: H04B1/16 ,  H04B1/12

Abstract: An operation method of a receiving device may comprise: receiving a periodic band-limited signal from a transmitting device; determining whether a carrier frequency of the periodic band-limited signal satisfies a constraint; converting the periodic band-limited signal into a digital high-frequency band signal by sampling the periodic band-limited signal at an extraction rate equal to or less than a Nyquist extraction rate when the carrier frequency satisfies the constraint; down-converting the digital high-frequency band signal into a digital baseband signal; rearranging samples of a plurality of periods of the digital baseband signal into one period; and generating a reconstructed signal by performing low-pass filtering with a bandwidth of the periodic band-limited signal on the digital baseband signal in which the samples are rearranged.