公开(公告)号：US20200220261A1

公开(公告)日：2020-07-09

申请号：US16334582

申请日：2016-12-15

Applicant: CHINA COMMUNICATION TECHNOLOGY CO.,LTD. ,  Shenzhen Institute of Terahertz Technology and Innovation

Inventor： Zhihui Feng ,  Chunchao Qi ,  Hanjiang Chen ,  Rong Wang ,  Shukai Zhao

IPC: H01Q3/22 ,  H01Q21/06 ,  H04B10/2507 ,  H04N5/225

Abstract: An electrically scanned array antenna device applied to a millimeter wave imaging system is provided. The electrically scanned array antenna device comprises an adjustable light source for outputting an optical signal with an adjustable wavelength; an electro-optical modulation module; an optocouple; a time delay module for performing optical delay of different duration on each modulated signal, and correspondingly changing the duration of the optical delay according to the wavelength of the optical signal to obtain modulated signals of different phases; an optical detector; and an array antenna. The millimeter wave is loaded on the optical signal with an adjustable wavelength to obtain a modulated signal; the modulated signal is divided into multiple signals; time delay of different duration is performed on each signal; and millimeter wave signals of different phases are obtained after demodulation and are simultaneously transmitted to scan an object to be measured.

公开(公告)号：US20190258220A1

公开(公告)日：2019-08-22

申请号：US16319160

申请日：2017-07-13

Applicant: CHINA COMMUNICATION TECHNOLOGY CO., LTD. ,  SHENZHEN VICTOOTH TERAHERTZ TECHNOLOGY CO., LTD.

Inventor： Rong Wang ,  Chunchao Qi ,  Xiongwei Huang ,  Guangsheng WU ,  Shukai Zhao ,  Qing Ding

IPC: G05B19/4061

Abstract: A security check instrument motion control system includes an FPGA control chip that receives motion instructions, comprising angle, direction, speed and the like, from an upper computer via an upper computer communication module, realizes quick control to a rotation motion module, and controls a motion state of the rotation motion module according to real-time motion information of the rotation motion module detected by a positioning detection module. The motion state includes a motion stop state and a normal rotation state. The FPGA control chip detects the working state of each module in the security check instrument motion control system in real time, and once the security check instrument motion control system has a fault, each module can be subjected to debugging, repairing and maintenance respectively. If the positioning detection module detects that the rotation motion module is abnormal, the FPGA control chip controls the rotation motion module to stop moving.