公开(公告)号：US20200313264A1

公开(公告)日：2020-10-01

申请号：US16588271

申请日：2019-09-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： DAHYE CHOI ,  Kyung Hyun PARK ,  Il Min LEE

IPC: H01P1/207 ,  H01P3/127

Abstract: Provided is a waveguide including an input end configured to receive an input wave from an outside; a filtering portion configured to change a frequency range of the input wave; an output end configured to output an output wave of which a frequency range is changed from the frequency range of the input wave; and an inner wall controller configured to control a size of an inner wall of the filtering portion such that the frequency range of the input wave changes to the frequency range of the output wave.