公开(公告)号：US07937052B2

公开(公告)日：2011-05-03

申请号：US11736458

申请日：2007-04-17

申请人： An Tuyen Banh ,  Yong Su ,  Xinguang Xu

发明人： An Tuyen Banh ,  Yong Su ,  Xinguang Xu

IPC分类号： H04B1/10 ,  H04B17/00

CPC分类号： H04B7/0868

摘要： A multiple input multiple output signal receiving apparatus includes a first antenna configured to receive a first radio frequency (RF) signal, a second antenna configured to receive a second RF signal, a superheterodyne receiver, a direct conversion receiver, and an antenna switching module. The superheterodyne receiver is configured to convert one or both of the first and second RF signals into at least one first analog signal. The direct conversion receiver is configured to convert one or both of the first and second RF signals into at least one second analog signal. The antenna switching module couples the first and second antennas to the superheterodyne receiver and the direct conversion receiver, and is configured to selectively direct the first and second RF signals to the superheterodyne receiver and/or the direct conversion receiver, depending on an antenna switch control signal indicating a signal quality derived from the first and second analog signals.

摘要翻译： 多输入多输出信号接收装置包括被配置为接收第一射频（RF）信号的第一天线，被配置为接收第二RF信号的第二天线，超外差接收机，直接转换接收机和天线切换模块。 超外差接收器被配置为将第一和第二RF信号中的一个或两个转换成至少一个第一模拟信号。 直接转换接收器被配置为将第一和第二RF信号中的一个或两个转换成至少一个第二模拟信号。 天线切换模块将第一和第二天线耦合到超外差接收机和直接转换接收机，并且被配置为根据天线切换控制将第一和第二RF信号选择性地引导到超外差接收机和/或直接转换接收机 指示从第一和第二模拟信号导出的信号质量的信号。

公开(公告)号：US06157340A

公开(公告)日：2000-12-05

申请号：US179047

申请日：1998-10-26

申请人： Guanghan Xu ,  Xinguang Xu ,  Fuqi Mu ,  Daniel Wee ,  Yu Xia

发明人： Guanghan Xu ,  Xinguang Xu ,  Fuqi Mu ,  Daniel Wee ,  Yu Xia

IPC分类号： H01Q3/26 ,  H04B7/06 ,  H04B7/08 ,  H04B17/00 ,  G01S7/40

CPC分类号： H04B7/086 ,  H01Q3/2605 ,  H01Q3/267 ,  H04B17/12 ,  H04B7/0615 ,  H04B7/0617

摘要： A communication system having an adaptive antenna array subsystem generates calibration information for the adaptive array subsystem by measuring the amplitude and phase of modulated signals within the subsystem at the antenna array mount and at the back plane mount for the transmit and receive array. The calibration information is used to more accurately perform beamforming for both received an transmitted information signals. The communication system uses a time diversity duplex (TDD) synchronous code division multiple access (SCDMA) protocol for wireless communication between remote terminals and a base station. The calibration means uses a combination combiner and splitter having matched micro strip lines incorporated into a printed circuit board in either the antenna array mount or the back plane.

摘要翻译： 具有自适应天线阵列子系统的通信系统通过测量在天线阵列安装座处的子系统内以及用于发射和接收阵列的背面安装座处的调制信号的幅度和相位来产生用于自适应阵列子系统的校准信息。 校准信息用于更准确地对接收到的所发送的信息信号进行波束成形。 通信系统使用时间分集双工（TDD）同步码分多址（SCDMA）协议，用于远程终端与基站之间的无线通信。 校准装置使用组合组合器和分离器，其具有并入到天线阵列安装件或背板中的印刷电路板中的匹配的微带线。

公开(公告)号：US06904266B1

公开(公告)日：2005-06-07

申请号：US10078635

申请日：2002-02-19

申请人： Hang Jin ,  Guanghan Xu ,  Xinguang Xu

发明人： Hang Jin ,  Guanghan Xu ,  Xinguang Xu

IPC分类号： H04B7/14 ,  H04B7/155

CPC分类号： H04B7/15571

摘要： An improved enhancer is disclosed which uses a switch matrix to increase the isolation between two antennas. For either an reverse link or forward link communication, the enhancer has a first antenna for receiving an incoming signal, and a receiver sub-system that amplifies and converts the incoming signal from the first antenna to a first predetermined frequency band. The enhancer further has a demodulator coupled to the receiver sub-system for demodulating the converted signal, and detecting timing information thereof. Also contained in the enhancer is a transmitter sub-system operable with the receiver sub-system that converts the signal from the receiver subsystem to a second predetermined frequency band and further amplifies the signal. After the signal is thus enhanced, a second antenna is used for further transmitting the amplified signal from the transmitted sub-system. The switch matrix controls connection switching among the first antenna, the second antenna, the transmitter sub-system, and the receiver sub-system, wherein the connection switching of the switch matrix is made based on the timing information detected by the demodulator and based on whether the incoming signal comes from a terminal or a base transceiver station.

摘要翻译： 公开了一种改进的增强器，其使用开关矩阵来增加两个天线之间的隔离。 对于反向链路或前向链路通信，增强器具有用于接收输入信号的第一天线以及将来自第一天线的输入信号放大并转换为第一预定频带的接收机子系统。 增强器还具有耦合到接收机子系统的解调器，用于解调转换的信号，并检测其定时信息。 增强器中还包括可与接收机子系统一起操作的发射机子系统，其将来自接收机子系统的信号转换为第二预定频带，并进一步放大信号。 在信号被增强之后，使用第二天线来进一步从发射的子系统发射放大的信号。 开关矩阵控制第一天线，第二天线，发射机子系统和接收机子系统之间的连接切换，其中，基于由解调器检测的定时信息，并基于 输入信号是来自终端还是基站收发台。

公开(公告)号：US07010272B2

公开(公告)日：2006-03-07

申请号：US10413109

申请日：2003-04-14

申请人： Xinguang Xu

发明人： Xinguang Xu

IPC分类号： H04B1/46 ,  H04B1/44 ,  H01P1/10

CPC分类号： H04B1/48

摘要： An improved radio frequency (RF) switch circuit is disclosed. The RF switch is typically used in a communication system having one or more transmission paths and one or more reception paths. The RF switch has a first set of diodes connected in parallel among themselves, and a second set of diodes connected in parallel among themselves. Each diode of the second set is coupled with at least one predetermined diode in the first set in a parallel manner by sharing a connection node that is coupled further with at least one antenna. A transmitter is coupled to the first set of diodes and the receiver is separately coupled to the second set of diodes, wherein either one of the first set of diodes or the second set of diodes are activated to establish one path while cutting off all other paths at the same time.

摘要翻译： 公开了一种改进的射频（RF）开关电路。 RF开关通常用于具有一个或多个传输路径和一个或多个接收路径的通信系统中。 RF开关具有彼此并联连接的第一组二极管和彼此并联连接的第二组二极管。 通过共享与至少一个天线进一步耦合的连接节点，第二组中的每个二极管以并行方式与第一组中的至少一个预定二极管耦合。 发射器耦合到第一组二极管，并且接收器单独耦合到第二组二极管，其中第一组二极管或第二组二极管中的任一个被激活以建立一个路径，同时切断所有其它路径 与此同时。

公开(公告)号：US20070298748A1

公开(公告)日：2007-12-27

申请号：US11736458

申请日：2007-04-17

申请人： An Tuyen Banh ,  Yong Su ,  Xinguang Xu

发明人： An Tuyen Banh ,  Yong Su ,  Xinguang Xu

IPC分类号： H04B1/10

CPC分类号： H04B7/0868

摘要： A MIMO signal receiving apparatus includes a first antenna for receiving a first RF signal; a second antenna for receiving a second RF signal; a superheterodyne receiver for receiving one or all of the first and second RF signals into at least one first analog signal; a direct conversion receiver for converting one or all of the first and second RF signals into at least one second signal; and an antenna switching module coupling the first and second antennas to the superheterodyne receiver and the direct conversion receiver for electively directing the first and second RF signals to the superheterodyne receiver and/or the direct conversion receiver, depending on an antenna switch control signal indicating a signal quality derived from the first and second analog signals.

摘要翻译： MIMO信号接收装置包括用于接收第一RF信号的第一天线; 用于接收第二RF信号的第二天线; 用于将第一和第二RF信号中的一个或全部接收到至少一个第一模拟信号中的超外差接收器; 直接转换接收器，用于将第一和第二RF信号中的一个或全部转换成至少一个第二信号; 以及天线切换模块，其将所述第一和第二天线耦合到所述超外差接收机和所述直接转换接收机，用于根据指示a的天线切换控制信号将所述第一和第二RF信号选择性地引导到所述超外差接收机和/或所述直接转换接收机 信号质量源自第一和第二模拟信号。