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公开(公告)号：US20130181774A1
公开(公告)日：2013-07-18
申请号：US13550060
申请日：2012-07-16
申请人： Nadim Khlat , Andrew F. Folkmann , James M. Retz
发明人： Nadim Khlat , Andrew F. Folkmann , James M. Retz
IPC分类号： H03G3/00
CPC分类号： H03G3/004 , H03F1/0216
摘要： Radio frequency (RF) transmitter circuitry, which includes an envelope tracking power supply and an RF power amplifier (PA), is disclosed. The RF PA operates in either a first operating mode or a second operating mode, such that selection of the operating mode is based on compression tolerance criteria. During the first operating mode, the RF PA receives and amplifies an RF input signal using a first compression level. During the second operating mode, the RF PA receives and amplifies the RF input signal using a second compression level, which is greater than the first compression level. The envelope tracking power supply provides an envelope power supply signal to the RF PA. The envelope power supply signal provides power for amplification.
摘要翻译： 公开了包括信封跟踪电源和RF功率放大器（PA）的射频（RF）发射机电路。 RF PA在第一操作模式或第二操作模式中操作，使得操作模式的选择基于压缩容限标准。 在第一操作模式期间，RF PA使用第一压缩级别接收并放大RF输入信号。 在第二操作模式期间，RF PA使用大于第一压缩级别的第二压缩级别接收并放大RF输入信号。 信封跟踪电源为RF PA提供信封电源信号。 信封电源信号提供放大功率。
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2.发明申请公开(公告)号：US20130024142A1
公开(公告)日：2013-01-24
申请号：US13552768
申请日：2012-07-19
CPC分类号： H03F3/189 , H03F1/0222 , H03F2200/411
摘要： A method of defining a quasi iso-gain supply voltage function for an envelope tracking system is disclosed. The method includes a step of capturing iso-gain supply voltage values versus power values for a device under test (DUT). Other steps involve locating a minimum iso-gain supply voltage value, and then replacing the iso-gain supply voltage values with the minimum iso-gain supply voltage value for corresponding output power values that are less than an output power value corresponding to the minimum iso-gain supply voltage value. The method further includes a step of generating a look-up table (LUT) of iso-gain supply voltage values as a function of input power for the DUT after the step of replacing the iso-gain supply voltage values with the minimum iso-gain supply voltage value for corresponding output power values that are less than an output power value corresponding to the minimum iso-gain supply voltage value.
摘要翻译： 公开了一种定义用于包络跟踪系统的准等增益电源电压功能的方法。 该方法包括捕获等效增益电源电压值与被测器件（DUT）的功率值的步骤。 其他步骤包括定位最小等电位增益电源电压值，然后用对应于最小等效电流的输出功率值的相应输出功率值的最小等效增益电源电压值替换等增益电源电压值 - 电源电压值。 该方法还包括以下步骤：在以等于最小等效增益替换等增益电源电压值的步骤之后，产生作为DUT的输入功率的函数的等增益电源电压值的查找表（LUT） 对于相应的输出功率值的电源电压值小于对应于最小等
差增益电源电压值的输出功率值。-
公开(公告)号：US09263996B2
公开(公告)日：2016-02-16
申请号：US13552768
申请日：2012-07-19
CPC分类号： H03F3/189 , H03F1/0222 , H03F2200/411
摘要： A method of defining a quasi iso-gain supply voltage function for an envelope tracking system is disclosed. The method includes a step of capturing iso-gain supply voltage values versus power values for a device under test (DUT). Other steps involve locating a minimum iso-gain supply voltage value, and then replacing the iso-gain supply voltage values with the minimum iso-gain supply voltage value for corresponding output power values that are less than an output power value corresponding to the minimum iso-gain supply voltage value. The method further includes a step of generating a look-up table (LUT) of iso-gain supply voltage values as a function of input power for the DUT after the step of replacing the iso-gain supply voltage values with the minimum iso-gain supply voltage value for corresponding output power values that are less than an output power value corresponding to the minimum iso-gain supply voltage value.
摘要翻译： 公开了一种定义用于包络跟踪系统的准等增益电源电压功能的方法。 该方法包括捕获等效增益电源电压值与被测器件（DUT）的功率值的步骤。 其他步骤包括定位最小等电位增益电源电压值，然后用对应于最小等效电流的输出功率值的相应输出功率值的最小等效增益电源电压值替换等增益电源电压值 - 电源电压值。 该方法还包括以下步骤：在以等于最小等效增益替换等增益电源电压值的步骤之后，产生作为DUT的输入功率的函数的等增益电源电压值的查找表（LUT） 对于相应的输出功率值的电源电压值小于对应于最小等
差增益电源电压值的输出功率值。-
公开(公告)号：US08626091B2
公开(公告)日：2014-01-07
申请号：US13550060
申请日：2012-07-16
申请人： Nadim Khlat , Andrew F. Folkmann , James M. Retz
发明人： Nadim Khlat , Andrew F. Folkmann , James M. Retz
IPC分类号： H04B1/04
CPC分类号： H03G3/004 , H03F1/0216
摘要： Radio frequency (RF) transmitter circuitry, which includes an envelope tracking power supply and an RF power amplifier (PA), is disclosed. The RF PA operates in either a first operating mode or a second operating mode, such that selection of the operating mode is based on compression tolerance criteria. During the first operating mode, the RF PA receives and amplifies an RF input signal using a first compression level. During the second operating mode, the RF PA receives and amplifies the RF input signal using a second compression level, which is greater than the first compression level. The envelope tracking power supply provides an envelope power supply signal to the RF PA. The envelope power supply signal provides power for amplification.
摘要翻译： 公开了包括信封跟踪电源和RF功率放大器（PA）的射频（RF）发射机电路。 RF PA在第一操作模式或第二操作模式中操作，使得操作模式的选择基于压缩容限标准。 在第一操作模式期间，RF PA使用第一压缩级别接收并放大RF输入信号。 在第二操作模式期间，RF PA使用大于第一压缩级别的第二压缩级别接收并放大RF输入信号。 信封跟踪电源为RF PA提供信封电源信号。 信封电源信号提供放大功率。
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5.发明授权De-multiplexing a radio frequency input signal using output transformer circuitry 有权使用输出变压器电路解复用射频输入信号公开(公告)号：US08570913B2
公开(公告)日：2013-10-29
申请号：US12966707
申请日：2010-12-13
申请人： Nadim Khlat , Ruediger Bauder , Andrew F. Folkmann
发明人： Nadim Khlat , Ruediger Bauder , Andrew F. Folkmann
CPC分类号： H04L5/14 , H04B1/0483
摘要： The present disclosure relates to de-multiplexing at least one RF input signal feeding RF power amplifier circuitry to create multiple de-multiplexed RF output signals, which may be used to provide RF transmit signals in an RF communications system. Output transformer circuitry is coupled to outputs from the RF power amplifier circuitry to provide the de-multiplexed RF output signals, which may support multiple modes, multiple frequency bands, or both. The de-multiplexed RF output signals may be used in place of RF switching elements in certain embodiments. As a result, RF front-end switching circuitry in the RF communications system may be simplified, thereby reducing insertion losses, reducing costs, reducing size, or any combination thereof. Additionally, the output transformer circuitry may provide load line transformation, output transistor biasing, or both to the RF power amplifier circuitry.
摘要翻译： 本公开涉及对至少一个馈送RF功率放大器电路的RF输入信号进行解复用以产生多个解复用RF输出信号，其可用于在RF通信系统中提供RF发射信号。 输出变压器电路耦合到来自RF功率放大器电路的输出，以提供解复用的RF输出信号，其可以支持多种模式，多个频带或两者。 在某些实施例中，解复用的RF输出信号可以用于代替RF开关元件。 结果，可以简化RF通信系统中的RF前端切换电路，从而减少插入损耗，降低成本，减小尺寸或其任何组合。 此外，输出变压器电路可以向RF功率放大器电路提供负载线变换，输出晶体管偏置或两者。
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6.发明申请DE-MULTIPLEXING A RADIO FREQUENCY INPUT SIGNAL USING OUTPUT TRANSFORMER CIRCUITRY 有权使用输出变压器电路解复用无线电频率输入信号公开(公告)号：US20110310775A1
公开(公告)日：2011-12-22
申请号：US12966707
申请日：2010-12-13
申请人： Nadim Khlat , Ruediger Bauder , Andrew F. Folkmann
发明人： Nadim Khlat , Ruediger Bauder , Andrew F. Folkmann
IPC分类号： H04B7/005
CPC分类号： H04L5/14 , H04B1/0483
摘要： The present disclosure relates to de-multiplexing at least one RF input signal feeding RF power amplifier circuitry to create multiple de-multiplexed RF output signals, which may be used to provide RF transmit signals in an RF communications system. Output transformer circuitry is coupled to outputs from the RF power amplifier circuitry to provide the de-multiplexed RF output signals, which may support multiple modes, multiple frequency bands, or both. The de-multiplexed RF output signals may be used in place of RF switching elements in certain embodiments. As a result, RF front-end switching circuitry in the RF communications system may be simplified, thereby reducing insertion losses, reducing costs, reducing size, or any combination thereof. Additionally, the output transformer circuitry may provide load line transformation, output transistor biasing, or both to the RF power amplifier circuitry.
摘要翻译： 本公开涉及对至少一个馈送RF功率放大器电路的RF输入信号进行解复用以创建多个解复用RF输出信号，其可用于在RF通信系统中提供RF发射信号。 输出变压器电路耦合到来自RF功率放大器电路的输出，以提供解复用的RF输出信号，其可以支持多种模式，多个频带或两者。 在某些实施例中，解复用的RF输出信号可以用于代替RF开关元件。 结果，可以简化RF通信系统中的RF前端切换电路，从而减少插入损耗，降低成本，减小尺寸或其任何组合。 此外，输出变压器电路可以向RF功率放大器电路提供负载线变换，输出晶体管偏置或两者。
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公开(公告)号：US09705537B1
公开(公告)日：2017-07-11
申请号：US12563679
申请日：2009-09-21
申请人： Ruediger Bauder , Nadim Khlat , Todd Gillenwater , Bob Sowell
发明人： Ruediger Bauder , Nadim Khlat , Todd Gillenwater , Bob Sowell
CPC分类号： H04B1/0458 , H04B1/0053 , H04B1/0064 , H04B1/16
摘要： Embodiments of the present disclosure relate to a multi-mode RF system, which is capable of transmitting and receiving RF signals using any of multiple RF communications bands. The multi-mode RF system may integrate RF band specific bandpass filters and low noise amplifiers (LNAs) into a single front-end module, such that each filter and amplifier pair provide selection and gain for at least one RF communications band. Outputs of the LNAs may be combined to provide one or more common signals to a transceiver module, which processes baseband signals associated with the RF communications bands. By integrating the filters and amplifiers into a single module, the filters and amplifiers may be closely coupled to one another, thereby supporting short signal paths between the filters and amplifiers, and having impedances high enough to provide good filter selectivity.
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公开(公告)号：US09420395B1
公开(公告)日：2016-08-16
申请号：US12951302
申请日：2010-11-22
申请人： Nadim Khlat
发明人： Nadim Khlat
IPC分类号： H04W4/00
CPC分类号： H04W4/00 , H04B17/3912 , H04W52/08 , H04W52/12 , H04W52/146 , H04W52/241 , H04W52/52
摘要： A user equipment (UE) antenna tuner control system and method that utilize a base transceiver station (BTS) inner power control loop, and in particular utilize a Node-B inner power control loop, are provided. The UE antenna tuner control system and method of the present disclosure include an antenna impedance matching algorithm and a power amplifier (PA) input drive control that are digitally controlled by the BTS. Therefore, each UE having a digitally controllable antenna tuner unit (ATU) and operating within a network that is controllable by the BTS will have increased power efficiency.
摘要翻译： 提供了一种利用基站收发台（BTS）内部功率控制回路，特别是利用节点B内部功率控制回路的用户设备（UE）天线调谐器控制系统和方法。 本公开的UE天线调谐器控制系统和方法包括由BTS数字控制的天线阻抗匹配算法和功率放大器（PA）输入驱动控制。 因此，具有数字可控天线调谐器单元（ATU）并且可在由BTS控制的网络内运行的每个UE将具有增加的功率效率。
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公开(公告)号：US09020455B1
公开(公告)日：2015-04-28
申请号：US13149306
申请日：2011-05-31
申请人： Nadim Khlat
发明人： Nadim Khlat
CPC分类号： H04B1/18 , H04B1/0458 , H04B2001/0416 , H04W52/30
摘要： A transceiver may include an antenna tuning control system operably associated with an antenna tuner to control the current power levels of the transmission signal and the receive signal. The antenna tuner control system may receive transmit power control (TPC) information, which was transmitted to the transceiver from a base station on the receive signal. The TPC information may be utilized to change the current power level of the transmission signal to a desired transmission power level. In addition, the antenna tuner control system may generate receive power control (RPC) information. The RPC information may be utilized to change the current power level of the receive signal to a desired receive power level. The antenna tuner control system is operable to adjust the pass band in accordance with the TPC information and the RPC information.
摘要翻译： 收发器可以包括可操作地与天线调谐器相关联的天线调谐控制系统，以控制传输信号和接收信号的当前功率电平。 天线调谐器控制系统可以接收从基站在接收信号上发送到收发信机的发射功率控制（TPC）信息。 TPC信息可以用于将传输信号的当前功率电平改变到期望的发射功率电平。 此外，天线调谐器控制系统可以产生接收功率控制（RPC）信息。 RPC信息可以用于将接收信号的当前功率电平改变到期望的接收功率电平。 天线调谐器控制系统可操作以根据TPC信息和RPC信息来调整通带。
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公开(公告)号：US08903333B1
公开(公告)日：2014-12-02
申请号：US13149216
申请日：2011-05-31
申请人： Nadim Khlat
发明人： Nadim Khlat
IPC分类号： H04B1/40
CPC分类号： H04B1/525
摘要： An antenna tuner provides a pass band with a transmission resonant frequency and a receive resonant frequency. In this manner, the pass band of the antenna tuner can simultaneously provide matching at both a transmission frequency and a receive frequency, when both transmission signals and receive signals are received on the same antenna. The antenna tuner includes a first capacitive element that is coupled to series resonate with the antenna and a low-pass pi network.
摘要翻译： 天线调谐器提供具有发射谐振频率和接收谐振频率的通带。 以这种方式，当发送信号和接收信号都在相同的天线上接收时，天线调谐器的通带可以同时提供传输频率和接收频率两者的匹配。 天线调谐器包括耦合到与天线串联谐振的第一电容元件和低通pi网络。
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