公开(公告)号：WO2017176816A3

公开(公告)日：2017-10-12

申请号：PCT/US2017/026023

申请日：2017-04-04

Applicant: TEXAS TECH UNIVERSITY SYSTEM

Inventor： LI, Changzhi ,  PENG, Zhengyu

IPC: H01Q3/00 ,  H01Q3/02 ,  H01Q3/12 ,  H04B1/04

Abstract: Disclosed is a system and method for a 24-GHz phased array for indoor smart radar comprising at least 6 horizontally placed antenna elements as a vertically placed 5-element series-fed microstrip patch array. The beam of the phased array can be continuously steered on the H-plane to different directions through a novel vector control array. Each element can adjust the phase and amplitude of the corresponding element of the horizontally placed linear array. The phased array system of the present invention may be fabricated on a single printed circuit board (PCB), and PIN diodes are used to realize beam steering by modulating the decomposed received signal. In order to compensate for the loss of the vector control array and reduce the noise figure, six low noise amplifiers (LNAs) are also used in the array. The present invention has the ability to continuously steer the beam on the H-plane.

公开(公告)号：WO2017176816A2

公开(公告)日：2017-10-12

申请号：PCT/US2017/026023

申请日：2017-04-04

Applicant: TEXAS TECH UNIVERSITY SYSTEM

Inventor： LI, Changzhi ,  PENG, Zhengyu

IPC: G01S5/02

CPC classification number: H01Q21/065 ,  G01S7/032 ,  H01P1/227 ,  H01Q1/007 ,  H01Q3/28 ,  H01Q3/36

Abstract: Disclosed is a system and method for a 24-GHz phased array for indoor smart radar comprising at least 6 horizontally placed antenna elements as a vertically placed 5-element series-fed microstrip patch array. The beam of the phased array can be continuously steered on the H-plane to different directions through a novel vector control array. Each element can adjust the phase and amplitude of the corresponding element of the horizontally placed linear array. The phased array system of the present invention may be fabricated on a single printed circuit board (PCB), and PIN diodes are used to realize beam steering by modulating the decomposed received signal. In order to compensate for the loss of the vector control array and reduce the noise figure, six low noise amplifiers (LNAs) are also used in the array. The present invention has the ability to continuously steer the beam on the H-plane.

Abstract translation: 公开了一种用于室内智能雷达的24GHz相控阵列的系统和方法，其包括至少6个水平放置的天线元件作为垂直放置的5元件串联馈电微带贴片阵列。 通过一种新颖的矢量控制阵列，相控阵的波束可以在H平面上不断地被导向到不同的方向。 每个元素可以调整水平放置的线性阵列的相应元素的相位和幅度。 本发明的相控阵列系统可以制造在单个印刷电路板（PCB）上，PIN二极管用于通过调制分解的接收信号来实现波束控制。 为了补偿矢量控制阵列的损耗并降低噪声系数，阵列中还使用了六个低噪声放大器（LNA）。 本发明能够连续地在H-平面上引导光束。

公开(公告)号：WO2016118901A1

公开(公告)日：2016-07-28

申请号：PCT/US2016/014592

申请日：2016-01-22

Applicant: TEXAS TECH UNIVERSITY SYSTEM

Inventor： LIU, Chenhui ,  LI, Changzhi ,  GU, Changzhan

IPC: H02J7/02 ,  H03K17/95

CPC classification number: G06F3/017 ,  H02J7/025 ,  H02J50/12 ,  H03K17/9542

Abstract: Disclosed is a system and method for controlling handheld devices without contact by interacting with their wireless charging coils or other inductive coil antennae. The present disclosure utilizes the interaction between human body and the coil wherein the coil is used to send alternating magnetic field to interact with a control signal, such as a hand, instead of simply using the coil in the smart phone as a power receiver. The hand movement in front of the wireless charging coil changes the coil's conductivity distribution, which creates effective coil impedance also known as reflected impedance.

Abstract translation: 公开了一种用于通过与其无线充电线圈或其他感应线圈天线相互作用来控制手持设备而不接触的系统和方法。 本公开利用人体和线圈之间的相互作用，其中线圈用于发送交变磁场以与诸如手的控制信号相互作用，而不是简单地将智能电话中的线圈用作电力接收器。 无线充电线圈前面的手部动作改变了线圈的电导率分布，从而产生有效线圈阻抗，也称为反射阻抗。

公开(公告)号：WO2015184406A1

公开(公告)日：2015-12-03

申请号：PCT/US2015/033408

申请日：2015-05-29

Applicant: TEXAS TECH UNIVERSITY SYSTEM

Inventor： LI, Changzhi ,  WANG, Guochao

IPC: G01S7/35 ,  G01S13/34 ,  G01S13/52 ,  G01S13/56

CPC classification number: G01S13/341 ,  G01S7/10 ,  G01S7/35 ,  G01S7/415 ,  G01S13/343 ,  G01S13/536 ,  G01S13/56 ,  G01S13/584 ,  G01S13/886

Abstract: Disclosed is a system and method for a hybrid radar system that integrates frequency-modulated continuous wave (FMCW) mode and interferometry mode. The radar works as a time division system that continuously switches between the FMCW mode and interferometry mode. The FMCW mode is responsible for absolute range detection and the interferometry mode takes cares of the weak physiological movement monitoring. The respective accuracies in range detection and displacement measurement complements the advantages of the two radar modes, providing versatile performance. By steering the antenna beam, the proposed radar system becomes an ideal solution for indoor health care, human localization, and human-computer interaction. Objects or human targets with or without stationary clutters can be precisely located. At the same time, the targets' vital signs and gestures can be monitored.

Abstract translation: 公开了一种混合雷达系统的系统和方法，该系统和方法集成了调频连续波（FMCW）模式和干涉测量模式。 该雷达作为时间分割系统在FMCW模式和干涉测量模式之间连续切换。 FMCW模式负责绝对范围检测，干涉测量模式需要关心弱生理运动监测。 范围检测和位移测量中的相应精度补充了两种雷达模式的优点，提供了多种性能。 通过引导天线波束，提出的雷达系统成为室内保健，人体定位和人机交互的理想解决方案。 具有或不具有固定杂散物的物体或人类靶标可以精确定位。 同时，可以监控目标的生命体征和手势。

公开(公告)号：WO2018057631A1

公开(公告)日：2018-03-29

申请号：PCT/US2017/052529

申请日：2017-09-20

Applicant: TEXAS TECH UNIVERSITY SYSTEM

Inventor： PENG, Zhengyu ,  LI, Changzhi ,  RAN, Lixin

IPC: H01Q3/00 ,  H04B7/06 ,  H04B7/08

Abstract: Disclosed is a system and method for a complex domain radio frequency (RF) frontend, adaptive beamforming can separate the relatively slowly changed waveform delay information required from wideband RF signals, upon which a self-contained beamforming system is implemented with a low-speed baseband. By introducing vector RF multipliers in the frontend of the present invention, the amplitude and phase of RF signals are simultaneously controlled by the real and imaginary parts of complex numbers, such that beamforming algorithms derived in complex domain can be directly applied without any form of transformation. By doing so, the massive use of conventional T/R modules and high¬ speed baseband devices can be avoided, thus simplifying the realization and decreasing the cost of wideband digital beamforming systems for use in low cost, power efficient beamforming applications.

Abstract translation: 公开了一种用于复杂域射频（RF）前端的系统和方法，自适应波束形成可以将宽带RF信号所需的相对缓慢改变的波形延迟信息分开，在所述宽带RF信号上，独立波束形成系统 是用低速基带实现的。 通过在本发明的前端引入矢量RF乘法器，RF信号的幅度和相位被复数的实部和虚部同时控制，使得在复数域中导出的波束形成算法可以直接应用而没有任何形式的变换 。 通过这样做，大量使用传统的T / R模块， 可以避免高速基带设备，从而简化宽带数字波束成形系统的实现并降低成本，以用于低成本，高功效的波束成形应用。

公开(公告)号：WO2017176814A1

公开(公告)日：2017-10-12

申请号：PCT/US2017/026021

申请日：2017-04-04

Applicant: TEXAS TECH UNIVERSITY SYSTEM

Inventor： LI, Changzhi ,  PENG, Zhengyu

IPC: H01Q3/00 ,  H01Q3/02 ,  H01Q3/12 ,  H04B1/04

CPC classification number: H01Q21/065 ,  G01S7/032 ,  H01P1/227 ,  H01Q1/007 ,  H01Q3/28 ,  H01Q3/36

Abstract: Disclosed is a system and method for a 24-GHz phased array for indoor smart radar comprising at least 6 horizontally placed antenna elements as a vertically placed 5- element series-fed microstrip patch array. The beam of the phased array can be continuously steered on the H-plane to different directions through a novel vector control array. Each element can adjust the phase and amplitude of the corresponding element of the horizontally placed linear array. The phased array system of the present invention may be fabricated on a single printed circuit board (PCB), and PIN diodes are used to realize beam steering by modulating the decomposed received signal. In order to compensate for the loss of the vector control array and reduce the noise figure, six low noise amplifiers (LNAs) are also used in the array. The present invention has the ability to continuously steer the beam on the H- plane.

Abstract translation: 公开了一种用于室内智能雷达的24GHz相控阵列的系统和方法，其包括至少6个水平放置的天线元件作为垂直放置的5元件串联馈电微带贴片阵列。 通过一种新颖的矢量控制阵列，相控阵的波束可以在H平面上不断地被导向到不同的方向。 每个元素可以调整水平放置的线性阵列的相应元素的相位和幅度。 本发明的相控阵列系统可以制造在单个印刷电路板（PCB）上，PIN二极管用于通过调制分解的接收信号来实现波束控制。 为了补偿矢量控制阵列的损耗并降低噪声系数，阵列中还使用了六个低噪声放大器（LNA）。 本发明能够连续地将光束引导到H-平面上。