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公开(公告)号：US09680521B2
公开(公告)日：2017-06-13
申请号：US14413293
申请日：2012-07-09
申请人： Stefan Andersson , Imad ud Din , Henrik Sjöland , Tobias Tired , Johan Wernehag
发明人： Stefan Andersson , Imad ud Din , Henrik Sjöland , Tobias Tired , Johan Wernehag
摘要： A transceiver front-end is connectable to a signal transmission and reception arrangement adapted to transmit and receive with respective frequencies. The transceiver front-end comprises at least one of a transmit frequency blocking arrangement and a receive frequency blocking arrangement. For instance, the transmit frequency blocking arrangement has a blocking and non-blocking frequency interval associated with the transmit frequency and receive frequency, respectively, and is adapted to block passage of transmit frequency signals between the signal transmission and reception arrangement and the receiver. At least one of the transmit frequency blocking arrangement and the receive frequency blocking arrangement comprises a network of passive components comprising at least one transformer and a frequency translated impedance adapted to have a higher impedance value in the blocking frequency interval than in the non-blocking frequency interval.
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公开(公告)号：US20140009245A1
公开(公告)日：2014-01-09
申请号：US13586500
申请日：2012-08-15
申请人： Imad ud Din , Stefan Andersson , Daniel Eckerbert , Henrik Sjöland , Tobias Tired , Johan Wernehag
发明人： Imad ud Din , Stefan Andersson , Daniel Eckerbert , Henrik Sjöland , Tobias Tired , Johan Wernehag
CPC分类号： H04B1/525 , H04B2203/5491 , Y10T29/49117
摘要： A transceiver front-end of a communication device comprises a frequency blocking arrangement, which may be either a transmit frequency blocking arrangement or a receive frequency blocking arrangement. The frequency blocking arrangement has a blocking frequency interval associated with one of a transmit frequency and receive frequency, and a non-blocking frequency interval associated with the other of the transmit frequency and receive frequency. The frequency blocking arrangement is configured to block passage of signals in the blocking frequency interval between said signal transmission and reception node and either said receiver node or said transmitter node. The frequency blocking arrangement comprises a network of passive components comprising at least one transformer and a filter arrangement adapted to have a higher impedance value in the blocking frequency interval than in the non-blocking frequency interval.
摘要翻译： 通信设备的收发机前端包括频率阻塞装置，其可以是发射频率阻塞装置或接收频率阻塞装置。 频率阻挡装置具有与发射频率和接收频率之一相关联的阻塞频率间隔以及与发射频率和接收频率中的另一个相关联的非阻塞频率间隔。 频率阻塞装置被配置为阻止所述信号发射和接收节点与所述接收机节点或所述发射机节点之间的阻塞频率间隔中的信号的通过。 频率阻挡装置包括无源部件网络，其包括至少一个变压器和滤波器装置，其适于在阻塞频率间隔中具有比在非阻塞频率间隔中更高的阻抗值。
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公开(公告)号：US20130314164A1
公开(公告)日：2013-11-28
申请号：US13988595
申请日：2011-09-23
申请人： Imad ud Din , Henrik Sjöland
发明人： Imad ud Din , Henrik Sjöland
IPC分类号： H03F3/193
CPC分类号： H03F3/193 , H03F1/0205 , H03F1/223 , H03F1/565 , H03F3/45179 , H03F3/45197 , H03F2200/181 , H03F2200/294 , H03F2200/451 , H03F2200/489 , H03F2200/492 , H03F2203/45316
摘要： A low-noise amplifier (300) is provided which comprises an input circuit (301) configured to operate with a variable bias current and an impedance boosting circuit (314) electrically connected to the input circuit (301). The impedance boosting circuit (314) comprises at least one switch (316) and at least one tail inductor (318) electrically connected with the at least one switch (316). The low-noise amplifier (300) is configured to activate the impedance boosting circuit (314) if the variable bias current is reduced, and the impedance boosting circuit (314) is configured to increase the input impedance of the low-noise amplifier (300) if the impedance boosting circuit (314) is activated.
摘要翻译： 提供了一种低噪声放大器（300），其包括被配置为与可变偏置电流一起操作的输入电路（301）和电连接到输入电路（301）的阻抗提升电路（314）。 阻抗提升电路（314）包括与至少一个开关（316）电连接的至少一个开关（316）和至少一个尾电感器（318）。 如果可变偏置电流减小，低噪声放大器（300）被配置为激活阻抗提升电路（314），并且阻抗提升电路（314）被配置为增加低噪声放大器（300）的输入阻抗 ），如果阻抗提升电路（314）被激活。
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公开(公告)号：US08909161B2
公开(公告)日：2014-12-09
申请号：US13586480
申请日：2012-08-15
申请人： Imad ud Din , Stefan Andersson , Daniel Eckerbert , Henrik Sjöland , Tobias Tired , Johan Wernehag
发明人： Imad ud Din , Stefan Andersson , Daniel Eckerbert , Henrik Sjöland , Tobias Tired , Johan Wernehag
IPC分类号： H04B1/38
CPC分类号： H04B1/525 , H04B2203/5491
摘要： A transceiver front-end for a communication device comprises a transmit frequency blocking arrangement and a receive frequency blocking arrangement. The transmit frequency blocking arrangement has a blocking frequency interval associated with the transmit frequency and a non-blocking frequency interval associated with the receive frequency, and is configured to block passage of transmit frequency signals between the signal transmission and reception arrangement and the receiver. The receive frequency blocking arrangement has a blocking frequency interval associated with the receive frequency and a non-blocking frequency interval associated with the transmit frequency, and is configured to block passage of receive frequency signals between the signal transmission and reception arrangement and the transmitter. One of the frequency blocking arrangements comprises a network of passive components including at least one transformer and a filter arrangement with a higher impedance at the blocking frequency interval than at the non-blocking frequency interval.
摘要翻译： 用于通信设备的收发机前端包括发射频率阻塞装置和接收频率阻塞装置。 发射频率阻塞装置具有与发射频率相关联的阻塞频率间隔和与接收频率相关联的非阻塞频率间隔，并且被配置为阻止发射频率信号在信号发射和接收装置与接收机之间的通过。 接收频率阻挡装置具有与接收频率相关联的阻塞频率间隔和与发射频率相关联的非阻塞频率间隔，并且被配置为阻止信号发送和接收装置与发射机之间的接收频率信号的通过。 频率阻挡装置之一包括无源部件网络，其包括至少一个变压器和在阻塞频率间隔处具有比在非阻塞频率间隔处具有更高阻抗的滤波器装置。
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公开(公告)号：US20140011464A1
公开(公告)日：2014-01-09
申请号：US14000712
申请日：2012-02-17
申请人： Martin Anderson , Imad ud Din , Henrik Sjöland
发明人： Martin Anderson , Imad ud Din , Henrik Sjöland
IPC分类号： H04B1/44
摘要： A technique for adjusting a transceiver capable of operating in compliance with at least one radio communication standard and comprising at least one RF transmitter and at least one RF receiver is disclosed. The technique comprises determining, when the RF transmitter transmits a signal, the amount of signal power leakage from the RF transmitter into the RF receiver, and adjusting, when RF transmitter is configured to transmit in a specific frequency range, one or more parameters of the RF receiver so as to fulfil a receiver requirement as defined in the radio communication standard. The adjustment is at least partially based on the signal power leakage determined for the specific frequency range.
摘要翻译： 公开了一种用于调整能够符合至少一个无线电通信标准并且包括至少一个RF发射机和至少一个RF接收机的收发器的技术。 该技术包括确定当RF发射器发射信号时，从RF发射机到RF接收机的信号功率泄漏量，以及当RF发射机被配置为在特定频率范围内发射时，调整一个或多个参数 RF接收机，以满足无线电通信标准中定义的接收机要求。 该调整至少部分地基于针对特定频率范围确定的信号功率泄漏。
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公开(公告)号：US08554162B2
公开(公告)日：2013-10-08
申请号：US13197022
申请日：2011-08-03
申请人： Jonas Lindstrand , Carl Bryant , Henrik Sjöland
发明人： Jonas Lindstrand , Carl Bryant , Henrik Sjöland
CPC分类号： H03F1/523 , H03F1/565 , H03F3/2171 , H03F3/245 , H03F3/45188 , H03F2200/387 , H03F2200/391 , H03F2203/45318 , H03F2203/45332 , H03F2203/45396 , H03F2203/45631 , H03F2203/45638 , H03H7/38
摘要： A power amplifier circuit utilizes a cross-coupled tapped cascade topology together with a technique of applying an RF injection current into a wideband node to provide a single-stage power amplifier with improved PAE, output power, and gain over a wide RF band. The amplifier circuit comprises a cross-coupled cascade transistor unit comprising a pair of cross-coupled cascode transistors, a cross-coupled switching transistor unit comprising a pair of cross-coupled switching transistors, and an RF current generator. RF current generator generates a differential RF injection current, while switching transistor unit amplifies the injection current to generate an amplified injection current at the wideband node of the amplifier circuit and the cascode transistor unit further amplifies the injection current to generate the desired amplified signal at the output of the amplifier circuit. The output signal amplitude generally depends on the differential injection current and the supply voltage VDD applied to the power amplifier circuit.
摘要翻译： 功率放大器电路利用交叉耦合抽头级联拓扑以及将RF注入电流施加到宽带节点中以提供具有改进的PAE，输出功率和宽RF频带上的增益的单级功率放大器的技术。 放大器电路包括交叉耦合级联晶体管单元，其包括一对交叉耦合共源共栅晶体管，包括一对交叉耦合开关晶体管的交叉耦合开关晶体管单元和RF电流发生器。 RF电流发生器产生差分RF注入电流，而开关晶体管单元放大注入电流以在放大器电路的宽带节点处产生放大的注入电流，并且共源共栅晶体管单元进一步放大注入电流以在 输出放大电路。 输出信号幅度通常取决于差分注入电流和施加到功率放大器电路的电源电压VDD。
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公开(公告)号：US20120015619A1
公开(公告)日：2012-01-19
申请号：US13242258
申请日：2011-09-23
申请人： Henrik Sjöland , Fredrik Tillman
发明人： Henrik Sjöland , Fredrik Tillman
IPC分类号： H04B1/26
CPC分类号： H03D7/14
摘要： A quadrature connected passive mixer arrangement for frequency converting analog signals from a first to a second frequency. The arrangement comprises two parallel connected mixers provided as transistors. First and second LO signals and their inverse signals having separated phases are provided for driving the transistors. Signal path switches are provided between the RF terminals and the mixer transistors. The switches are driven by signals having a different phase than the signal driving the corresponding mixer transistor. Thus, any short circuit between IF terminals of the arrangement may be eliminated.
摘要翻译： 一种正交连接的无源混频器装置，用于将模拟信号从第一频率转换到第二频率。 该装置包括作为晶体管提供的两个并联连接的混频器。 第一和第二LO信号及其具有分离相位的反相信号被提供用于驱动晶体管。 信号路径开关设置在RF端子和混频器晶体管之间。 开关由具有与驱动相应的混频器晶体管的信号不同的相位的信号驱动。 因此，可以消除该装置的IF端子之间的任何短路。
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公开(公告)号：US09094104B2
公开(公告)日：2015-07-28
申请号：US13586500
申请日：2012-08-15
申请人： Imad Ud Din , Stefan Andersson , Daniel Eckerbert , Henrik Sjöland , Tobias Tired , Johan Wernehag
发明人： Imad Ud Din , Stefan Andersson , Daniel Eckerbert , Henrik Sjöland , Tobias Tired , Johan Wernehag
CPC分类号： H04B1/525 , H04B2203/5491 , Y10T29/49117
摘要： A transceiver front-end of a communication device comprises a frequency blocking arrangement, which may be either a transmit frequency blocking arrangement or a receive frequency blocking arrangement. The frequency blocking arrangement has a blocking frequency interval associated with one of a transmit frequency and receive frequency, and a non-blocking frequency interval associated with the other of the transmit frequency and receive frequency. The frequency blocking arrangement is configured to block passage of signals in the blocking frequency interval between said signal transmission and reception node and either said receiver node or said transmitter node. The frequency blocking arrangement comprises a network of passive components comprising at least one transformer and a filter arrangement adapted to have a higher impedance value in the blocking frequency interval than in the non-blocking frequency interval.
摘要翻译： 通信设备的收发机前端包括频率阻塞装置，其可以是发射频率阻塞装置或接收频率阻塞装置。 频率阻挡装置具有与发射频率和接收频率之一相关联的阻塞频率间隔以及与发射频率和接收频率中的另一个相关联的非阻塞频率间隔。 频率阻塞装置被配置为阻止所述信号发射和接收节点与所述接收机节点或所述发射机节点之间的阻塞频率间隔中的信号的通过。 频率阻挡装置包括无源部件网络，其包括至少一个变压器和滤波器装置，其适于在阻塞频率间隔中具有比在非阻塞频率间隔中更高的阻抗值。
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公开(公告)号：US09077290B2
公开(公告)日：2015-07-07
申请号：US13988595
申请日：2011-09-23
申请人： Imad ud Din , Henrik Sjöland
发明人： Imad ud Din , Henrik Sjöland
CPC分类号： H03F3/193 , H03F1/0205 , H03F1/223 , H03F1/565 , H03F3/45179 , H03F3/45197 , H03F2200/181 , H03F2200/294 , H03F2200/451 , H03F2200/489 , H03F2200/492 , H03F2203/45316
摘要： A low-noise amplifier (300) is provided which comprises an input circuit (301) configured to operate with a variable bias current and an impedance boosting circuit (314) electrically connected to the input circuit (301). The impedance boosting circuit (314) comprises at least one switch (316) and at least one tail inductor (318) electrically connected with the at least one switch (316). The low-noise amplifier (300) is configured to activate the impedance boosting circuit (314) if the variable bias current is reduced, and the impedance boosting circuit (314) is configured to increase the input impedance of the low-noise amplifier (300) if the impedance boosting circuit (314) is activated.
摘要翻译： 提供了一种低噪声放大器（300），其包括被配置为与可变偏置电流一起操作的输入电路（301）和电连接到输入电路（301）的阻抗提升电路（314）。 阻抗提升电路（314）包括与至少一个开关（316）电连接的至少一个开关（316）和至少一个尾电感器（318）。 如果可变偏置电流减小，低噪声放大器（300）被配置为激活阻抗提升电路（314），并且阻抗提升电路（314）被配置为增加低噪声放大器（300）的输入阻抗 ），如果阻抗提升电路（314）被激活。
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公开(公告)号：US08213893B2
公开(公告)日：2012-07-03
申请号：US13242258
申请日：2011-09-23
申请人： Henrik Sjöland , Fredrik Tillman
发明人： Henrik Sjöland , Fredrik Tillman
CPC分类号： H03D7/14
摘要： A quadrature connected passive mixer arrangement for frequency converting analog signals from a first to a second frequency. The arrangement comprises two parallel connected mixers provided as transistors. First and second LO signals and their inverse signals having separated phases are provided for driving the transistors. Signal path switches are provided between the RF terminals and the mixer transistors. The switches are driven by signals having a different phase than the signal driving the corresponding mixer transistor. Thus, any short circuit between IF terminals of the arrangement may be eliminated.
摘要翻译： 一种正交连接的无源混频器装置，用于将模拟信号从第一频率转换到第二频率。 该装置包括作为晶体管提供的两个并联连接的混频器。 第一和第二LO信号及其具有分离相位的反相信号被提供用于驱动晶体管。 信号路径开关设置在RF端子和混频器晶体管之间。 开关由具有与驱动相应的混频器晶体管的信号不同的相位的信号驱动。 因此，可以消除该装置的IF端子之间的任何短路。
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