公开(公告)号：US09831561B2

公开(公告)日：2017-11-28

申请号：US15135709

申请日：2016-04-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Woo Jin Byun ,  Yong Heui Cho ,  Young Seung Lee

IPC: H01Q19/10 ,  H01Q19/18 ,  H01Q15/14 ,  H01Q19/185 ,  H01Q19/19

CPC classification number: H01Q15/148 ,  H01Q19/185 ,  H01Q19/19

Abstract: A reflective antenna apparatus according to an exemplary embodiment of the present invention includes a feeder which receives an electromagnetic wave from a transmitter and distributes the electromagnetic wave to the antenna apparatus; a sub reflector which has a step formed to generate an orbital angular momentum (OAM) mode electromagnetic wave; and a main reflector which has a step formed to generate the same electromagnetic wave as the OAM mode generated by the sub reflector and cancels the OAM mode electromagnetic wave generated by the sub reflector and an OAM mode electromagnetic wave generated by the main reflector to radiate the electromagnetic waves to a far field.

公开(公告)号：US09537225B2

公开(公告)日：2017-01-03

申请号：US13949358

申请日：2013-07-24

Applicant: Electronics and Telecommunications Research Institute

Inventor： Woo Jin Byun ,  Yong Heui Cho ,  Min Soo Kang ,  Kwang Seon Kim ,  Bong-Su Kim

IPC: H01Q21/00 ,  H01Q21/06 ,  H01Q3/46

CPC classification number: H01Q21/065 ,  H01Q3/46

Abstract: A method for use with a reflectarray antenna for wireless telecommunication is described. The method involves providing a reflectarray antenna, and adjusting a phase of a scattered field of the reflectarray antenna for generating different radiation patterns for angular mode-based multiplexing. The reflectarray antenna includes a ground plane, a dielectric substrate attached on the ground plane; and a first antenna patch formed on one side of the dielectric substrate. Further, the reflectarray antenna includes a second antenna patch formed adjacent to the first antenna patch with a separation area therebetween; and a phase adjustment member disposed in the separation area. The phase of the scattered field of the antenna is adjusted by changing a DC voltage of the phase adjustment member.

Abstract translation: 描述了一种用于无线电信的反射阵列天线的方法。 该方法包括提供反射阵列天线，以及调整反射阵列天线的散射场的相位，以产生用于基于角模的复用的不同辐射图。 反射阵列天线包括接地平面，附着在接地平面上的电介质基片; 以及形成在电介质基板的一侧上的第一天线贴片。 此外，反射阵列天线包括与第一天线贴片相邻形成的第二天线贴片，其间具有分隔区域; 以及设置在分离区域中的相位调整构件。 通过改变相位调整部件的直流电压来调整天线的散射场的相位。