公开(公告)号：US20230384360A1

公开(公告)日：2023-11-30

申请号：US18120213

申请日：2023-03-10

Applicant: Electronics and Telecommunications Research Institute

Inventor： Dong-Uk SIM ,  Sangil KWAK ,  Seung Keun PARK ,  Hyeyeon KWON

IPC: G01R31/28 ,  H04B17/00

CPC classification number: G01R31/2822 ,  H04B17/0085

Abstract: Provided is a wireless channel reproduction device having a structure of an reverberation chamber. More specifically, the wireless channel reproduction device may minimize a measurement uncertainty by satisfying recommendations on spatial uniformity or field uniformity of a working volume and may be designed as an internal structure of an reverberation chamber including a plurality of mode agitators.

公开(公告)号：US20230420823A1

公开(公告)日：2023-12-28

申请号：US18107883

申请日：2023-02-09

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Dong-Uk SIM ,  Sangil KWAK ,  Seung Keun PARK ,  Hyeyeon KWON

IPC: H01Q1/22 ,  G01R29/08 ,  H01Q1/12 ,  H02K7/075

CPC classification number: H01Q1/22 ,  G01R29/0878 ,  G01R29/0814 ,  H01Q1/125 ,  H02K7/075

Abstract: Provided is a mode stirring device. The mode stirring device includes a transmission antenna configured to output a wireless signal to measure wireless performance in an electromagnetic (EM) wave reverberation chamber, an antenna connection bar having one end coupled to a lower end of the transmission antenna, a crankshaft connected to another end of the antenna connection bar, and a motor configured to change a position of the transmission antenna by rotating the crankshaft.