公开(公告)号：US20230366741A1

公开(公告)日：2023-11-16

申请号：US18316027

申请日：2023-05-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Il Min LEE ,  DA HYE CHOI ,  Mugeon KIM ,  Kyung Hyun PARK ,  Dong Woo PARK ,  JUN-HWAN SHIN ,  Eui Su LEE

IPC: G01J9/04

CPC classification number: G01J9/04

Abstract: Disclosed is a phase shift measuring device, which includes a dual mode laser including a first beat light source generating a first beating signal and a second beat light source generating a second beating signal, and that outputs a dual mode signal including the first beating signal and the second beating signal, a first splitter that receives the dual mode signal to generate a first branch signal and a second branch signal, the first branch signal and the second branch signal being including the branched first beating signal and the branched second beating signal, respectively, a phase control unit that receives the first branch signal and to generate a combined signal, a transmitting end that receives the combined signal from the phase control unit and generates a transmission signal based on the combined signal, and a receiving end.

公开(公告)号：US20240063557A1

公开(公告)日：2024-02-22

申请号：US18325631

申请日：2023-05-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Young Ho KIM ,  Kyung Hyun PARK ,  Dong Woo PARK ,  JUN-HWAN SHIN ,  Il Min LEE

IPC: H01Q23/00 ,  G01N22/00 ,  H01Q9/04 ,  H01Q1/48 ,  H03D7/02

CPC classification number: H01Q23/00 ,  G01N22/00 ,  H01Q9/0407 ,  H01Q1/48 ,  H03D7/02

Abstract: Disclosed is an antenna-sub harmonic mixer block, which includes a dielectric block disposed on a PCB substrate having a ground surface, an antenna including first antenna patch provided on the dielectric block and having a metal patch and a slot, and a second antenna patch provided on the dielectric block, spaced apart from the first antenna patch to surround the first antenna patch, and that receives a ground voltage at the same potential as the ground surface of the PCB substrate, an RF ground wire disposed on the dielectric block and connected from the first antenna patch to a surface having the same potential as the ground surface, an RF switching stage disposed on the dielectric block, connected to the first antenna patch, and that provides a switching ON/OFF operation in conjunction with the RF ground wire depending on a magnitude of a local signal LO.