公开(公告)号：US20180102847A1

公开(公告)日：2018-04-12

申请号：US15336538

申请日：2016-10-27

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Jong-Hun KIM ,  Young-Su KIM ,  Dong Eun YOO ,  Dongwook LEE ,  Ki-Nam KIM ,  Hae Chul HWANG

IPC: H04B10/2575 ,  H04B10/516 ,  H04B10/50 ,  G02F1/225 ,  G02B6/28 ,  G02F1/025 ,  G02F1/01

CPC classification number: H04B10/25752 ,  G02B6/12004 ,  G02B6/2813 ,  G02B6/2861 ,  G02B2006/12123 ,  G02B2006/12147 ,  G02B2006/12159 ,  G02F1/0147 ,  G02F1/025 ,  G02F1/2255 ,  G02F2001/0156 ,  G02F2001/212 ,  H04B10/501 ,  H04B10/516

Abstract: Disclosed is a photonic beam forming network chip using silicon semiconductor based monolithic integration for fabrication and using true time delay for signal processing of a phased array antenna, including at least one power splitter a plurality of Mach-Zehnder modulators, a plurality of true time delay devices, a photonic detector, and a photonic waveguide configured to respectively connect the at least one power splitter, the plurality of Mach-Zehnder modulators, the plurality of true time delay devices, and the photonic detector.

公开(公告)号：US20170322374A1

公开(公告)日：2017-11-09

申请号：US15542673

申请日：2016-01-12

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Hyo-Hoon PARK ,  Jong-Hun KIM

IPC: G02B6/125 ,  G02B6/12

CPC classification number: G02B6/125 ,  G02B6/26 ,  G02B6/35 ,  G02B2006/12102 ,  G02B2006/12104

Abstract: A waveguide having a bi-directional optical transmission structure comprises: a main waveguide which is formed in a preset direction; a branch waveguide which is connected to at least one of both ends of the main waveguide; and a reflector which is placed at an intersection where the branch waveguide and the at least one of both ends of the main waveguide are connected, and which has a different refraction index from the refraction index of the main waveguide and the refraction index of the branch waveguide, wherein the reflector refracts or reflects in different forms the bidirectional light signals for transmission and reception, and thereby directs the light signal for transmission to the main waveguide, and separates the light signal for reception to the branch waveguide.