公开(公告)号：US09705537B1

公开(公告)日：2017-07-11

申请号：US12563679

申请日：2009-09-21

Applicant: Ruediger Bauder ,  Nadim Khlat ,  Todd Gillenwater ,  Bob Sowell

Inventor： Ruediger Bauder ,  Nadim Khlat ,  Todd Gillenwater ,  Bob Sowell

IPC: H04B1/10 ,  H04B1/16 ,  H04B1/04

CPC classification number: H04B1/0458 ,  H04B1/0053 ,  H04B1/0064 ,  H04B1/16

Abstract: 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.

公开(公告)号：US09420395B1

公开(公告)日：2016-08-16

申请号：US12951302

申请日：2010-11-22

Applicant: Nadim Khlat

Inventor： Nadim Khlat

IPC: H04W4/00

CPC classification number: H04W4/00 ,  H04B17/3912 ,  H04W52/08 ,  H04W52/12 ,  H04W52/146 ,  H04W52/241 ,  H04W52/52

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US09020455B1

公开(公告)日：2015-04-28

申请号：US13149306

申请日：2011-05-31

Applicant: Nadim Khlat

Inventor： Nadim Khlat

IPC: H04B1/18 ,  H04W52/30

CPC classification number: H04B1/18 ,  H04B1/0458 ,  H04B2001/0416 ,  H04W52/30

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08903333B1

公开(公告)日：2014-12-02

申请号：US13149216

申请日：2011-05-31

Applicant: Nadim Khlat

Inventor： Nadim Khlat

IPC: H04B1/40

CPC classification number: H04B1/525

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08760228B2

公开(公告)日：2014-06-24

申请号：US13531719

申请日：2012-06-25

Applicant: Nadim Khlat

Inventor： Nadim Khlat

IPC: H03F3/68

CPC classification number: H03F3/21 ,  H03F1/0227 ,  H03F3/193 ,  H03F3/211 ,  H03F3/45071 ,  H03F2200/459 ,  H03F2200/537

Abstract: Embodiments of the present disclosure relate to radio frequency (RF) transmitter circuitry, which includes non-inverting path power amplifier (PA) circuitry, inverting path PA circuitry, and RF transformer circuitry. The non-inverting path PA circuitry provides a non-inverting RF signal and a first power supply (PS) signal to the RF transformer circuitry, such that the first PS signal has a first ripple voltage. The inverting path PA circuitry provides an inverting RF signal and a second PS signal to the RF transformer circuitry, such that the second PS signal has a second ripple voltage. The RF transformer circuitry additively combines the non-inverting RF signal and the inverting RF signal to provide an RF output signal, such that effects of the first ripple voltage and the second ripple voltage are substantially cancelled from the RF output signal.

Abstract translation: 本公开的实施例涉及射频（RF）发射机电路，其包括非反相路径功率放大器（PA）电路，反相路径PA电路和RF变压器电路。 非反相路径PA电路向RF变压器电路提供非反相RF信号和第一电源（PS）信号，使得第一PS信号具有第一纹波电压。 反相路径PA电路向RF变压器电路提供反相RF信号和第二PS信号，使得第二PS信号具有第二纹波电压。 RF变压器电路将非反相RF信号和反相RF信号相加地组合以提供RF输出信号，使得第一纹波电压和第二纹波电压的影响从RF输出信号基本上消除。

公开(公告)号：US08736398B2

公开(公告)日：2014-05-27

申请号：US13197216

申请日：2011-08-03

Applicant: Joshua J. Caron ,  Nadim Khlat

Inventor： Joshua J. Caron ,  Nadim Khlat

IPC: H01P5/12

CPC classification number: H04B1/48 ,  H04B1/109

Abstract: Disclosed is a diplexed transmit (TX) filter and RF switch for suppressing third order intermodulation (IM3) products. Included are first and second duplexers each having a receive (RX) port, a TX port, and an RX/TX port. Also included are first and second power splitter/combiners each having first, second, and third terminals. Further included are first, second, and third phase shift networks. The first power splitter/combiner's first terminal is coupled to the first duplexer's TX port and a first switch segment is coupled between the first duplexer's RX/TX port and the first terminal of the second coupler. The first phase shift network is coupled to the second duplexer's TX port and a second switch segment in series with the second phase shift network is coupled between the second duplexer's RX/TX port and second coupler's second terminal. The third phase shift network is coupled to the second duplexer's RX terminal.

Abstract translation: 公开了用于抑制三阶互调（IM3）产品的双工发射（TX）滤波器和RF开关。 包括具有接收（RX）端口，TX端口和RX / TX端口的第一和第二双工器。 还包括第一和第二功率分配器/组合器，每个具有第一，第二和第三端子。 还包括第一，第二和第三相移网络。 第一功率分配器/组合器的第一端子耦合到第一双工器的TX端口，并且第一开关段耦合在第一双工器的RX / TX端口和第二耦合器的第一端子之间。 第一相移网络耦合到第二双工器的TX端口，并且与第二相移网络串联的第二开关段耦合在第二双工器的RX / TX端口和第二耦合器的第二端子之间。 第三相移网络耦合到第二双工器的RX端子。

公开(公告)号：US08624760B2

公开(公告)日：2014-01-07

申请号：US13423649

申请日：2012-03-19

Applicant: Christopher Truong Ngo ,  Nadim Khlat

Inventor： Christopher Truong Ngo ,  Nadim Khlat

IPC: H03M7/00

CPC classification number: H03M7/3073 ,  H03M7/3082 ,  H04B17/13

Abstract: A system and method for performing sample rate conversion and creating fractional delays to a signal is disclosed. The system comprises a filter, a look up table for storing coefficients for sample rate conversion and fractional delays, and control circuitry configured to use an indexing scheme to select one or more coefficients from the look up table for rate conversion and fractional delays. The coefficients stored in the look up table comprise the coefficients required to generate delays in desired increments of a sample rate. In the disclosed method, the one or more coefficients necessary for a desired sample rate and fractional delay are selected from a single look up table and provided to a filter to delay the signal based upon the input sample rate.

Abstract translation: 公开了一种用于对信号进行采样率转换和产生分数延迟的系统和方法。 该系统包括滤波器，用于存储用于采样率转换和分数延迟的系数的查找表以及配置为使用索引方案从查找表中选择一个或多个系数以用于速率转换和分数延迟的控制电路。 存储在查找表中的系数包括以采样率的期望增量产生延迟所需的系数。 在所公开的方法中，从单个查询表中选择所需采样率和分数延迟所需的一个或多个系数，并提供给滤波器以基于输入的采样率来延迟信号。

公开(公告)号：US08571498B2

公开(公告)日：2013-10-29

申请号：US13188024

申请日：2011-07-21

Applicant: Nadim Khlat

Inventor： Nadim Khlat

IPC: H04B1/04

CPC classification number: H03F1/0227 ,  H03F1/0244

Abstract: A power management system for a radio frequency (RF) power amplifier (PA) load is disclosed. The power management system includes a first switching power supply that is adapted to output a relatively constant voltage, an electronic switch for selectively coupling the first switching power supply to the RF PA load, and a second switching power that is adapted to output a dynamic DC voltage to the RF PA load. The power management system further includes a control system that is adapted to close the electronic switch to supply the relatively constant DC voltage in addition to the dynamic DC voltage to the RF PA load in a first mode and to open the electronic switch wherein the relatively constant DC voltage is not supplied to the RF PA load in a second mode.

Abstract translation: 公开了一种用于射频（RF）功率放大器（PA）负载的电源管理系统。 电源管理系统包括适于输出相对恒定电压的第一开关电源，用于将第一开关电源选择性地耦合到RF PA负载的电子开关，以及适于输出动态DC的第二开关电源 电压到RF PA负载。 电力管理系统还包括控制系统，其适于关闭电子开关以在第一模式中向RF PA负载提供除了动态DC电压之外的相对恒定的DC电压，并且打开电子开关，其中相对恒定 在第二模式下，不向RF PA负载提供直流电压。

公开(公告)号：US20130241666A1

公开(公告)日：2013-09-19

申请号：US13606139

申请日：2012-09-07

Applicant: Marcus Granger-Jones ,  Nadim Khlat

Inventor： Marcus Granger-Jones ,  Nadim Khlat

IPC: H01P1/10

CPC classification number: H01P1/15 ,  H01P1/10 ,  H04B1/006 ,  H04B1/1027 ,  H04B1/109 ,  H04B2001/1054 ,  H04B2001/1063

Abstract: A band switch with a switchable notch for receive carrier aggregation is disclosed. The band switch has at least one input and an output with at least one series switch coupled between the at least one input and the output. The at least one series switch is adapted to selectively couple the input to the output in response to a first control signal. The band switch also includes at least one shunt switch coupled between the at least one input and a voltage node. The at least one shunt switch is adapted to selectively couple the at least one input to the voltage node in response to a second control signal. In addition, at least one notch filter is selectively coupled to the output in a shunt configuration, wherein the at least one notch filter is configured to attenuate signals within a stop band to attenuate harmonics and distortion.

Abstract translation: 公开了具有用于接收载波聚合的可切换陷波的带开关。 带开关具有至少一个输入和输出，其中至少一个串联开关耦合在至少一个输入和输出之间。 至少一个串联开关适于响应于第一控制信号选择性地将输入耦合到输出。 带开关还包括耦合在至少一个输入端和电压节点之间的至少一个并联开关。 所述至少一个并联开关适于响应于第二控制信号选择性地将所述至少一个输入耦合到所述电压节点。 此外，至少一个陷波滤波器在分流配置中选择性地耦合到输出，其中至少一个陷波滤波器被配置为衰减阻带内的信号以衰减谐波和失真。

公开(公告)号：US08493141B2

公开(公告)日：2013-07-23

申请号：US13089917

申请日：2011-04-19

Applicant: Nadim Khlat ,  Michael R. Kay

Inventor： Nadim Khlat ,  Michael R. Kay

IPC: H03G3/00

CPC classification number: H03F1/0238 ,  H02M3/07 ,  H03F1/0244 ,  H03F1/025 ,  H03F3/189 ,  H03F3/19 ,  H03F3/21 ,  H03F3/24 ,  H03F2200/102 ,  H03F2200/375 ,  H03F2200/451 ,  H03F2200/555 ,  H03G3/004

Abstract: Embodiments disclosed in the detailed description relate to a pseudo-envelope follower power management system used to manage the power delivered to a linear RF power amplifier.