公开(公告)号：US20080180170A1

公开(公告)日：2008-07-31

申请号：US11627115

申请日：2007-01-25

申请人： Lizhong Zhu ,  George Mankaruse ,  Michael Corrigan ,  Jun Xu ,  Kent Nickerson

发明人： Lizhong Zhu ,  George Mankaruse ,  Michael Corrigan ,  Jun Xu ,  Kent Nickerson

IPC分类号： H03F1/26

CPC分类号： H03F3/191 ,  H03F1/565 ,  H03F3/189 ,  H05K1/0231 ,  H05K1/0233 ,  H05K1/0296

摘要： The invention relates to a system and method for attenuating harmonics in output signals. In the system, an electronic circuit for reducing harmonics of an output signal from a power amplifier in a transmission circuit for a wireless communication device is provided. The circuit comprises: a printed circuit board (PCB); a power amplifier for generating an output signal; and a circuit implemented on the PCB connected to an output terminal of the power amplifier for the output signal. The circuit comprises a first filtering stage; a delay element; and a harmonic filter. The delay element is located between the harmonic filter and the output terminal and the delay element provides a timing delay in the output signal through at least one 0 ohm-rated component. Also, the harmonic filter is a low pass filter having a frequency cut-off point that attenuates first order harmonics of the output signal.

摘要翻译： 本发明涉及用于衰减输出信号中的谐波的系统和方法。 在该系统中，提供了用于降低无线通信装置的发送电路中的来自功率放大器的输出信号的谐波的电子电路。 该电路包括：印刷电路板（PCB）; 用于产生输出信号的功率放大器; 以及在PCB上实现的电路，连接到功率放大器的输出端用于输出信号。 该电路包括第一滤波级; 延迟元件 和谐波滤波器。 延迟元件位于谐波滤波器和输出端子之间，延迟元件通过至少一个0欧姆额定分量在输出信号中提供定时延迟。 此外，谐波滤波器是具有衰减输出信号的一阶谐波的频率截止点的低通滤波器。

公开(公告)号：US20120007670A1

公开(公告)日：2012-01-12

申请号：US13204476

申请日：2011-08-05

申请人： Lizhong Zhu ,  George Mankaruse ,  Michael Corrigan ,  Jun Xu ,  Kent Nickerson

发明人： Lizhong Zhu ,  George Mankaruse ,  Michael Corrigan ,  Jun Xu ,  Kent Nickerson

IPC分类号： H03F1/00

CPC分类号： H03F3/191 ,  H03F1/565 ,  H03F3/189 ,  H05K1/0231 ,  H05K1/0233 ,  H05K1/0296

摘要： The disclosure relates to a system and method for attenuating harmonics in a power amplifier. An electronic circuit for reducing leakage of radio frequency signals from a power amplifier of a wireless communication device is provided. The circuit comprises: a printed circuit board (PCB) having the power amplifier mounted on the PCB; a first electrical track in the PCB connecting to a power input terminal of the power amplifier; and a first capacitor connected to the first electrical track and a ground reference in the PCB, the first capacitor reducing transmission of radio frequency signals from the input terminal of the power amplifier.

摘要翻译： 本公开涉及一种用于衰减功率放大器中的谐波的系统和方法。 提供一种用于减少来自无线通信设备的功率放大器的射频信号泄漏的电子电路。 该电路包括：具有安装在PCB上的功率放大器的印刷电路板（PCB）; PCB中连接到功率放大器的电源输入端的第一电轨; 并且连接到第一电气轨道的第一电容器和PCB中的接地基准，第一电容器减小来自功率放大器的输入端子的射频信号的传输。

公开(公告)号：US08362834B2

公开(公告)日：2013-01-29

申请号：US13587386

申请日：2012-08-16

申请人： Lizhong Zhu ,  George Mankaruse ,  Michael Corrigan ,  Jun Xu ,  Kent Nickerson

发明人： Lizhong Zhu ,  George Mankaruse ,  Michael Corrigan ,  Jun Xu ,  Kent Nickerson

IPC分类号： H03F1/00 ,  H03F3/04

CPC分类号： H03F3/191 ,  H03F1/565 ,  H03F3/189 ,  H05K1/0231 ,  H05K1/0233 ,  H05K1/0296

摘要： The disclosure relates to an electronic circuit for attenuating harmonics in a power amplifier. The circuit comprises: a printed circuit board (PCB); a first electrical track in the PCB providing a connection from a high band power input terminal of the amplifier to a battery terminal; a first capacitor connected to the first track, the high band power input terminal and a ground reference in the PCB; a first high filter choke connected to the first track and to the terminal; a second electrical track connected to a low band power input terminal of the amplifier; a circuit implemented on the PCB and connected to an output terminal of the amplifier for an output signal from the amplifier, comprising a first filter and a low pass filter, the first filter connected to a 0 ohm resistor which is connected to the low pass filter.

摘要翻译： 本公开涉及一种用于衰减功率放大器中的谐波的电子电路。 该电路包括：印刷电路板（PCB）; PCB中的第一电轨提供从放大器的高频带功率输入端到电池端的连接; 连接到第一轨道的第一电容器，高频带功率输入端子和PCB中的接地参考; 连接到第一轨道和终端的第一高滤波器扼流圈; 连接到放大器的低频电力输入端的第二电气轨; 在PCB上实现并连接到放大器的输出端的电路，用于来自放大器的输出信号，包括第一滤波器和低通滤波器，第一滤波器连接到连接到低通滤波器的0欧姆电阻器 。

公开(公告)号：US07724084B2

公开(公告)日：2010-05-25

申请号：US11627115

申请日：2007-01-25

申请人： Lizhong Zhu ,  George Mankaruse ,  Michael Corrigan ,  Jun Xu ,  Kent Nickerson

发明人： Lizhong Zhu ,  George Mankaruse ,  Michael Corrigan ,  Jun Xu ,  Kent Nickerson

IPC分类号： H03F1/00 ,  H03F3/04

CPC分类号： H03F3/191 ,  H03F1/565 ,  H03F3/189 ,  H05K1/0231 ,  H05K1/0233 ,  H05K1/0296

摘要： The invention relates to a system and method for attenuating harmonics in output signals. In the system, an electronic circuit for reducing harmonics of an output signal from a power amplifier in a transmission circuit for a wireless communication device is provided. The circuit comprises: a printed circuit board (PCB); a power amplifier for generating an output signal; and a circuit implemented on the PCB connected to an output terminal of the power amplifier for the output signal. The circuit comprises a first filtering stage; a delay element; and a harmonic filter. The delay element is located between the harmonic filter and the output terminal and the delay element provides a timing delay in the output signal through at least one 0 ohm-rated component. Also, the harmonic filter is a low pass filter having a frequency cut-off point that attenuates first order harmonics of the output signal.

摘要翻译： 本发明涉及用于衰减输出信号中的谐波的系统和方法。 在该系统中，提供了用于降低无线通信装置的发送电路中的来自功率放大器的输出信号的谐波的电子电路。 该电路包括：印刷电路板（PCB）; 用于产生输出信号的功率放大器; 以及在PCB上实现的电路，连接到功率放大器的输出端用于输出信号。 该电路包括第一滤波级; 延迟元件 和谐波滤波器。 延迟元件位于谐波滤波器和输出端子之间，延迟元件通过至少一个0欧姆额定分量在输出信号中提供定时延迟。 此外，谐波滤波器是具有衰减输出信号的一阶谐波的频率截止点的低通滤波器。

公开(公告)号：US20110255575A1

公开(公告)日：2011-10-20

申请号：US12760701

申请日：2010-04-15

申请人： Lizhong Zhu ,  George Soliman Mankaruse ,  Michael Stephen Corrigan ,  Perry Jarmuszewski ,  Oleksiy Kravets ,  Kent A. Nickerson ,  Nagula Tharma Sangary

发明人： Lizhong Zhu ,  George Soliman Mankaruse ,  Michael Stephen Corrigan ,  Perry Jarmuszewski ,  Oleksiy Kravets ,  Kent A. Nickerson ,  Nagula Tharma Sangary

IPC分类号： H04B1/38

CPC分类号： H04L25/08 ,  H04B1/0475

摘要： A communications device may include an In-phase (I) circuit having an In-phase modulator and mixer circuit, and an I power amplifier circuit coupled thereto, the I circuit configured to modulate and amplify a digital baseband I signal to generate an amplified I signal, and a Quadrature (Q) circuit having a Q modulator and mixer circuit, and a Q power amplifier circuit coupled thereto, the Q circuit configured to modulate and amplify a digital baseband Q signal to generate an amplified Q signal separate from the amplified I signal. The communications device may include a processor configured, for example, to selectively switch the digital baseband signal and the digital baseband Q signal between the I and Q signal inputs to provide selective phase shifting for the digital baseband I and Q signals. For example, the controller may selectively phase shift the digital baseband I and Q signals, and control the I and Q power amplifier circuits to vary an amplitude of the amplified I and Q signals.

摘要翻译： 通信设备可以包括具有同相调制器和混频器电路的同相（I）电路和耦合到其上的I功率放大器电路，I电路被配置为调制和放大数字基带I信号以产生放大的I 信号和具有Q调制器和混频器电路的正交（Q）电路和耦合到其上的Q功率放大器电路，所述Q电路被配置为调制和放大数字基带Q信号以产生与放大的I分离的放大的Q信号 信号。 通信设备可以包括处理器，其被配置为例如在I和Q信号输入之间选择性地切换数字基带信号和数字基带Q信号，以提供数字基带I和Q信号的选择性相移。 例如，控制器可以选择性地相移数字基带I和Q信号，并且控制I和Q功率放大器电路以改变放大的I和Q信号的幅度。

公开(公告)号：US08526535B2

公开(公告)日：2013-09-03

申请号：US13526430

申请日：2012-06-18

申请人： Lizhong Zhu ,  George Soliman Mankaruse ,  Michael Stephen Corrigan ,  Perry Jarmuszewski ,  Oleksiy Kravets ,  Kent Arnold Nickerson ,  Nagula Tharma Sangary

发明人： Lizhong Zhu ,  George Soliman Mankaruse ,  Michael Stephen Corrigan ,  Perry Jarmuszewski ,  Oleksiy Kravets ,  Kent Arnold Nickerson ,  Nagula Tharma Sangary

IPC分类号： H04K1/02

CPC分类号： H04L1/0035 ,  H04L27/2089 ,  H04L27/364 ,  H04L27/367

摘要： A communications device, in one aspect as a portable wireless communications device, includes an in-phase modulator and power amplifier that receives a baseband I signal and modulates and amplifies the I signal. A quadrature modulator and power amplifier receives a baseband Q signal and modulates and amplifies the Q signal. A power combiner sums and outputs the I and Q signals. An I demodulator circuit receives a signal fed back from the I power amplifier and demodulates the fed back signal to produce demodulated I signals. A Q demodulator circuit receives a signal fed back from the Q power amplifier and demodulates the fed back signal to produce demodulated Q signals. A processor compares the digital, baseband I and Q signals with a demodulated I and Q signals to compensate for amplitude, frequency and phase modulation errors.

摘要翻译： 在一方面，作为便携式无线通信设备的通信设备包括接收基带I信号并调制和放大I信号的同相调制器和功率放大器。 正交调制器和功率放大器接收基带Q信号并调制和放大Q信号。 功率组合器对I和Q信号进行求和并输出。 I解调器电路接收从I功率放大器反馈的信号并解调反馈信号以产生解调的I信号。 Q解调器电路接收从Q功率放大器反馈的信号，并且对反馈信号进行解调以产生解调的Q信号。 处理器将数字，基带I和Q信号与解调的I和Q信号进行比较，以补偿幅度，频率和相位调制误差。

公开(公告)号：US08451941B2

公开(公告)日：2013-05-28

申请号：US12760701

申请日：2010-04-15

申请人： Lizhong Zhu ,  George Soliman Mankaruse ,  Michael Stephen Corrigan ,  Perry Jarmuszewski ,  Oleksiy Kravets ,  Kent A. Nickerson ,  Nagula Tharma Sangary

发明人： Lizhong Zhu ,  George Soliman Mankaruse ,  Michael Stephen Corrigan ,  Perry Jarmuszewski ,  Oleksiy Kravets ,  Kent A. Nickerson ,  Nagula Tharma Sangary

IPC分类号： H04K1/02

CPC分类号： H04L25/08 ,  H04B1/0475

摘要： A communications device may include an In-phase (I) circuit having an In-phase modulator and mixer circuit, and an I power amplifier circuit coupled thereto, the I circuit configured to modulate and amplify a digital baseband I signal to generate an amplified I signal, and a Quadrature (Q) circuit having a Q modulator and mixer circuit, and a Q power amplifier circuit coupled thereto, the Q circuit configured to modulate and amplify a digital baseband Q signal to generate an amplified Q signal separate from the amplified I signal. The communications device may include a processor configured, for example, to selectively switch the digital baseband signal and the digital baseband Q signal between the I and Q signal inputs to provide selective phase shifting for the digital baseband I and Q signals. For example, the controller may selectively phase shift the digital baseband I and Q signals, and control the I and Q power amplifier circuits to vary an amplitude of the amplified I and Q signals.

摘要翻译： 通信设备可以包括具有同相调制器和混频器电路的同相（I）电路和耦合到其上的I功率放大器电路，I电路被配置为调制和放大数字基带I信号以产生放大的I 信号和具有Q调制器和混频器电路的正交（Q）电路和耦合到其上的Q功率放大器电路，所述Q电路被配置为调制和放大数字基带Q信号以产生与放大的I分离的放大的Q信号 信号。 通信设备可以包括处理器，其被配置为例如在I和Q信号输入之间选择性地切换数字基带信号和数字基带Q信号，以提供数字基带I和Q信号的选择性相移。 例如，控制器可以选择性地相移数字基带I和Q信号，并且控制I和Q功率放大器电路以改变放大的I和Q信号的幅度。

公开(公告)号：US07387256B2

公开(公告)日：2008-06-17

申请号：US11686446

申请日：2007-03-15

申请人： Lizhong Zhu ,  Michael Corrigan ,  Perry Jarmuszewski

发明人： Lizhong Zhu ,  Michael Corrigan ,  Perry Jarmuszewski

IPC分类号： G06K7/10

CPC分类号： H04M1/0202 ,  H04B15/00 ,  H04M1/03 ,  H04M1/23

摘要： A mobile wireless communications device includes a circuit board carried by a housing and having RF circuitry and a processor operative with the RF circuitry. A keyboard is carried by the housing and includes a keypad array circuit. A keypad connector is carried by the keypad and is operatively connected to the RF circuitry and processor. A plurality of Key_Out and Key_In connection lines connect the keypad connector and keypad array circuit. Filters carried by the keyboard are connected into each Key_Out and Key_In connection line for reducing RF energy picked up from either the antenna or external interference and interfering with normal processor operation.

摘要翻译： 移动无线通信设备包括由壳体承载并具有RF电路的电路板和与RF电路一起操作的处理器。 键盘由壳体承载并且包括键盘阵列电路。 小键盘连接器由小键盘携带并且可操作地连接到RF电路和处理器。 多个Key_Out和Key_In连接线连接键盘连接器和键盘阵列电路。 键盘携带的滤波器连接到每个Key_Out和Key_In连接线中，以减少从天线或外部干扰中拾取的RF能量，并干扰正常的处理器操作。

公开(公告)号：US07363063B2

公开(公告)日：2008-04-22

申请号：US11064701

申请日：2005-02-24

申请人： Lizhong Zhu ,  Michael Corrigan ,  Perry Jarmuszewski

发明人： Lizhong Zhu ,  Michael Corrigan ,  Perry Jarmuszewski

IPC分类号： H04M1/00 ,  H04B1/10

CPC分类号： H04M1/23 ,  H04B1/38 ,  H04B15/00 ,  H04B15/02 ,  H04M1/0202

摘要： A mobile wireless communications device includes a housing and circuit board carried by the housing. Radio frequency (RF) circuitry carried by the circuit board forms a transmitter and receiver. A processor is carried by the circuit board and operative with the RF circuitry. A keyboard connector is mounted on the circuit board. A plurality of Key_Out and Key_In connection lines are carried by the circuit board and connect the keyboard connector and processor. A keypad is carried by the housing and operatively connected to the keyboard connector. A filter is operative with each connection line for limiting degradation in receiver sensitivity.

摘要翻译： 移动无线通信设备包括由壳体承载的外壳和电路板。 由电路板承载的射频（RF）电路形成发射机和接收机。 处理器由电路板携带并与RF电路一起操作。 键盘连接器安装在电路板上。 多个Key_Out和Key_In连接线由电路板承载，并连接键盘连接器和处理器。 键盘由壳体承载并且可操作地连接到键盘连接器。 每个连接线都可以使用滤波器来限制接收机灵敏度的降低。

公开(公告)号：US07928925B2

公开(公告)日：2011-04-19

申请号：US12916912

申请日：2010-11-01

申请人： Lizhong Zhu ,  Michael Corrigan ,  Robert Grant ,  Liviu George ,  Perry Jarmuszewski

发明人： Lizhong Zhu ,  Michael Corrigan ,  Robert Grant ,  Liviu George ,  Perry Jarmuszewski

IPC分类号： H01Q1/52

CPC分类号： H01Q1/526 ,  H01Q1/243 ,  H01Q17/00 ,  H04B1/3838 ,  H05K1/0243 ,  H05K9/0039 ,  Y10T29/49002 ,  Y10T29/49018

摘要： A mobile wireless communications device includes a housing and circuit board carried by the housing and having RF circuitry comprising at least one RF component and plurality of other components mounted on the circuit board. An RF metal shield is secured to the circuit board and surrounds and isolates the at least one RF component and plurality of other components within the RF metal shield. An RF absorber is positioned adjacent an area of the RF component that radiates energy to aid in reducing energy radiated from the RF component into the RF metal shield.

摘要翻译： 移动无线通信设备包括由壳体承载的壳体和电路板，并且具有包括安装在电路板上的至少一个RF部件和多个其它部件的RF电路。 RF金属屏蔽件固定到电路板上，并且围绕和隔离RF金属屏蔽件内的至少一个RF部件和多个其它部件。 RF吸收器邻近放射能量的RF部件的区域定位，以帮助将从RF部件辐射的能量减少到RF金属屏蔽中。