公开(公告)号：US20180175506A1

公开(公告)日：2018-06-21

申请号：US15841687

申请日：2017-12-14

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Chul-Soon PARK ,  Tae-Hwan JANG ,  Hong-Yi KIM

IPC: H01Q13/02 ,  H04B7/08

CPC classification number: H01Q13/0233 ,  H01Q3/24 ,  H01Q13/02 ,  H01Q19/30 ,  H04B7/0617 ,  H04B7/086

Abstract: An antenna device includes a horn antenna including a waveguide and a horn connected to the waveguide, the horn having a shape widening toward an opening direction, a beamforming network including a plurality of input ports and a plurality of output ports and changing a phase of output port signals output from the output ports based on input port signals applied to the input ports, and an antenna array disposed in the horn antenna and connected to the output ports of the beamforming network.

公开(公告)号：US20170141472A1

公开(公告)日：2017-05-18

申请号：US15006206

申请日：2016-01-26

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Chul-Soon PARK ,  Tae-Hwan JANG ,  Hong-Yi KIM ,  Chae-Jun LEE

IPC: H01Q9/04

CPC classification number: H01Q9/0414 ,  H01Q1/243 ,  H01Q1/36 ,  H01Q5/328 ,  H01Q9/42 ,  H01Q21/28

Abstract: Disclosed is a millimeter wave antenna for diagonal radiation. A first metal layer and a second metal layer having a form of microstrip wire are coated on the bottom surface and at least a partial region of the top surface of a dielectric substrate, respectively. When viewed in a direction perpendicular to the top surface of the dielectric substrate, the second metal layer is covered by the first metal layer. The microstrip wire of the second metal layer may have a length of more than half of a wavelength of a RF signal. The long-wire antenna has a radiation pattern in upward diagonal direction when a signal to transmit is fed under a condition that the first metal layer is grounded. The form of the second metal layer may be a straight line, Y-shape, ψ-shape, or etc. An impedance matching metal layer may be added to the second metal layer.