公开(公告)号：US20150023456A1

公开(公告)日：2015-01-22

申请号：US14506452

申请日：2014-10-03

Applicant: Aviat U.S., Inc.

Inventor： Emerick Vann ,  Yen-Fang Chao ,  Youming Qin ,  Roland Matian

IPC: H04L1/20 ,  H04B1/00 ,  H04L1/00

CPC classification number: H04L1/206 ,  H03C3/406 ,  H03D3/009 ,  H03D7/168 ,  H04B1/0014 ,  H04B1/10 ,  H04B1/16 ,  H04B1/28 ,  H04B1/30 ,  H04L1/0036 ,  H04L1/203 ,  H04L1/208 ,  H04L27/38 ,  H04L27/3854

Abstract: Various embodiments provide for systems and methods for signal conversion of one modulated signal to another modulated signal using demodulation and then re-modulation. According to some embodiments, a signal receiving system may comprise an I/Q demodulator that demodulates a first modulated signal to an in-phase (“I”) signal and a quadrature (“Q”) signal, an I/Q signal adjustor that adaptively adjusts the Q signal to increase the signal-to-noise ratio (SNR) of a transitory signal that is based on a second modulated signal, and an I/Q modulator that modulates the I signal and the adjusted Q signal to the second modulated signal. To increase the SNR, the Q signal may be adjusted based on a calculated error determined for the transitory signal during demodulation by a demodulator downstream from the I/Q modulator.

公开(公告)号：US20150010115A1

公开(公告)日：2015-01-08

申请号：US14494418

申请日：2014-09-23

Applicant: Aviat U.S., Inc.

Inventor： Paul A. Kennard ,  Sergio Licardie

IPC: H04B7/08

CPC classification number: H04B7/08 ,  H04B7/0837 ,  H04B7/12 ,  H04L5/14

Abstract: An exemplary system comprises at least one antenna, first and second signal paths, and an N-plexer. The first antenna may be configured to receive first and second diversity received signals. The first signal path may have a first converter configured to convert the first diversity received signal to first carrier group. The second signal path may have a second converter configured to convert the second diversity received signal to a second carrier group. The N-plexer may be configured to provide the first and second diversity received signals to a first cable in communication with a first modem.

Abstract translation: 示例性系统包括至少一个天线，第一和第二信号路径以及N-plexer。 第一天线可以被配置为接收第一和第二分集接收信号。 第一信号路径可以具有被配置为将第一分集接收信号转换成第一载波组的第一转换器。 第二信号路径可以具有被配置为将第二分集接收信号转换成第二载波组的第二转换器。 N-plexer可以被配置为向与第一调制解调器通信的第一电缆提供第一和第二分集接收信号。

公开(公告)号：US08866560B2

公开(公告)日：2014-10-21

申请号：US13907376

申请日：2013-05-31

Applicant: Aviat U.S., Inc.

Inventor： Edwin Nealis ,  Ying Shen

IPC: H01P1/39 ,  H01P1/38

CPC classification number: H01P1/39 ,  H01P1/38 ,  H01Q13/00

Abstract: Systems and methods for a stacked waveguide circulator are described. The stacked waveguide circulator may comprise a first side and a second side. The stacked waveguide circulator may also comprise a top and a bottom opposite the top. The top and the bottom may be adjacent to the first and second sides. The stacked waveguide circulator may also comprise a a first port and a second port on the first side. The first port may be vertically above the second port on the first side. Further, the stacked waveguide circulator may comprise a third port on the second side. The stacked waveguide circulator may comprise a first magnet on the top. The first magnet may be configured to assist in directing signals between the first, second, and third ports.

Abstract translation: 描述了用于堆叠式波导循环器的系统和方法。 层叠的波导循环器可以包括第一侧和第二侧。 堆叠的波导循环器还可以包括与顶部相对的顶部和底部。 顶部和底部可以与第一和第二侧相邻。 层叠的波导循环器还可以包括在第一侧上的第一端口和第二端口。 第一端口可以垂直地位于第一侧上的第二端口上方。 此外，堆叠的波导循环器可以包括在第二侧上的第三端口。 层叠的波导循环器可以包括顶部的第一磁体。 第一磁体可以被配置为辅助在第一，第二和第三端口之间引导信号。

公开(公告)号：US20140210558A1

公开(公告)日：2014-07-31

申请号：US14225227

申请日：2014-03-25

Applicant: Aviat U.S., Inc.

Inventor： Frank Matsumoto ,  Youming Qin ,  Cuong Nguyen ,  Andres Goytia

IPC: H03F1/32 ,  H03F3/19 ,  H03F3/21

CPC classification number: H03F3/19 ,  H03F1/0272 ,  H03F1/3247 ,  H03F3/21 ,  H03F2200/15 ,  H03F2200/462

Abstract: Various embodiments described herein provide systems and methods for improved performance for power amplifiers, particularly GaN power amplifiers. According to some embodiments, a power amplifier (e.g., GaN power amplifier) utilizes adaptive predistortion and adaptive closed-loop control of the drain current of the power amplifier to achieve improved power amplifier performance.

Abstract translation: 本文描述的各种实施例提供用于功率放大器，特别是GaN功率放大器的改进性能的系统和方法。 根据一些实施例，功率放大器（例如，GaN功率放大器）利用功率放大器的漏极电流的自适应预失真和自适应闭环控制来实现改进的功率放大器性能。

公开(公告)号：US20140192797A1

公开(公告)日：2014-07-10

申请号：US14150698

申请日：2014-01-08

Applicant: Aviat U.S., Inc.

Inventor： Sergio Licardie ,  Ivana Maric

IPC: H04W56/00

CPC classification number: H04J3/0658

Abstract: According to some embodiments, a master device sends synchronization packets to one or more slave devices, and does so periodically based on a master clock signal having a master clock frequency. At each of the slave devices, an algorithm estimates the master clock frequency based on the timing of synchronization packet arrivals the slave device. The algorithm may estimate the master clock frequency using both the currently-observed timing of synchronization packet arrivals and the history of previous synchronization packet arrivals (e.g., previously-observed timing of synchronization packet arrivals). Based on the estimated master clock frequency, each of the one or more slave devices can update the frequency of their respective slave clock signal (e.g., using a frequency offset) to match that of the estimated master clock frequency.

Abstract translation: 根据一些实施例，主设备向一个或多个从设备发送同步分组，并且基于具有主时钟频率的主时钟信号周期性地执行。 在每个从设备中，算法基于同步分组到达从设备的定时估计主时钟频率。 该算法可以使用当前观察到的同步分组到达的定时和先前的同步分组到达的历史（例如，先前观察到的同步分组到达的定时）来估计主时钟频率。 基于估计的主时钟频率，一个或多个从属设备中的每一个可以更新它们各自的从时钟信号的频率（例如，使用频率偏移）来匹配估计的主时钟频率的频率。

公开(公告)号：US08766718B2

公开(公告)日：2014-07-01

申请号：US13633066

申请日：2012-10-01

Applicant: Aviat U.S., Inc.

Inventor： Frank Matsumoto ,  Youming Qin

IPC: H03F1/26

CPC classification number: H03F1/3247 ,  H03F1/56 ,  H03F3/211 ,  H03F3/24 ,  H03F2200/204 ,  H03F2200/207 ,  H03F2200/387 ,  H03F2200/405 ,  H03F2200/408 ,  H03F2200/411 ,  H03F2201/3227

Abstract: An exemplary system comprises a linearizer, a power amplifier, and a feedback block. The linearizer may be configured to use a predistortion control signal to add predistortion to a receive signal to generate a predistorted signal. The power amplifier may be configured to amplify power of the predistorted signal to generate a first amplified signal. The power amplifier may also add high side and low side amplifier distortion to the predistorted signal. The high side and low side amplifier distortion may cancel at least a portion of the predistortion. The feedback block may be configured to capture a feedback signal based on a previous amplified signal from the power amplifier, to determine high side and low side distortion of the captured feedback signal, and to generate the predistortion control signal based on the determined high side and low side distortion.

Abstract translation: 示例性系统包括线性化器，功率放大器和反馈块。 线性化器可以被配置为使用预失真控制信号来将预失真添加到接收信号以产生预失真信号。 功率放大器可以被配置为放大预失真信号的功率以产生第一放大信号。 功率放大器还可以向预失真信号增加高侧和低侧放大器失真。 高侧和低侧放大器失真可能会取消预失真的至少一部分。 反馈块可以被配置为基于来自功率放大器的先前放大的信号捕获反馈信号，以确定所捕获的反馈信号的高侧和低侧失真，以及基于所确定的高侧产生预失真控制信号，以及 低端失真。

公开(公告)号：US20140030998A1

公开(公告)日：2014-01-30

申请号：US14044762

申请日：2013-10-02

Applicant: Aviat U.S., Inc.

Inventor： Ying Shen

IPC: H04B1/10

CPC classification number: H04L27/22 ,  H04B1/10 ,  H04L27/0002 ,  H04L27/2334

Abstract: Systems and methods for combining signals from multiple active wireless receivers are discussed herein. An exemplary system comprises a first downconverter, a phase comparator, a phase adjuster, and a second downconverter. The first downconverter may be configured to downconvert a received signal from a first antenna to an intermediate frequency to create an intermediate frequency signal. The phase comparator may be configured to mix the received signal and a downconverted signal to create a mixed signal, compare a phase of the mixed signal to a predetermined phase, and generate a phase control signal based on the comparison, the downconverted signal being associated with the received signal from the first antenna. The phase adjuster may be configured to alter the phase of the intermediate frequency signal based on the phase control signal. The second downconverter may be configured to downconvert the phase-shifted intermediate frequency signal to create an output signal.

Abstract translation: 本文讨论了用于组合来自多个有源无线接收机的信号的系统和方法。 示例性系统包括第一下变频器，相位比较器，相位调节器和第二下变频器。 第一下变频器可以被配置为将接收到的信号从第一天线下变频到中频，以产生中频信号。 相位比较器可以被配置为混合接收信号和下变频信号以产生混合信号，将混合信号的相位与预定相位进行比较，并且基于比较生成相位控制信号，下变频信号与 来自第一天线的接收信号。 相位调整器可以被配置为基于相位控制信号改变中频信号的相位。 第二下变频器可以被配置为对相移的中频信号进行下变频以产生输出信号。

公开(公告)号：US20140003309A1

公开(公告)日：2014-01-02

申请号：US14016992

申请日：2013-09-03

Applicant: Aviat U.S., Inc.

Inventor： Ying Shen ,  David Schafer

IPC: H04B7/06

CPC classification number: H04L1/22 ,  H04B1/74 ,  H04B7/0617 ,  H04B7/0697 ,  H04W56/003

Abstract: Various embodiments provide for systems and methods for wireless communications that implement transmitter protection schemes using spatial combining. The protection scheme implemented by some embodiments provides for a number of benefits, including without limitation: hitless protection; constant power monitoring for each wireless channel being utilized; extra gain to wireless signals transmitted; beam steering, beam hopping, and beam alignment capabilities; and varying levels of transmission path protection (e.g., 1+1 protection, or 1+N protection). Additionally, the features of some embodiments may be applied to a variety of wireless communications systems including, for example, microwave wireless systems, cellular phone systems and WiFi systems.

Abstract translation: 各种实施例提供了使用空间组合实现发射机保护方案的无线通信的系统和方法。 由一些实施例实现的保护方案提供了许多益处，包括但不限于：无效保护; 正在利用的每个无线信道的恒功率监测; 传输无线信号的额外增益; 光束转向，光束跳跃和光束对准能力; 和传输路径保护级别（例如，1 + 1保护或1 + N保护）。 另外，一些实施例的特征可以应用于各种无线通信系统，包括例如微波无线系统，蜂窝电话系统和WiFi系统。

公开(公告)号：US20130235919A1

公开(公告)日：2013-09-12

申请号：US13798065

申请日：2013-03-12

Applicant: AVIAT U.S., INC.

Inventor： Sreco Plevel

IPC: H04L1/20

CPC classification number: H04L27/3836 ,  H04L1/206 ,  H04L7/048 ,  H04L27/0014 ,  H04L27/34 ,  H04L27/366 ,  H04L2027/0087

Abstract: A receiver may comprise: a symbol receiver configured to receive a first modulated symbol at a first resolution and thereafter a second modulated symbol at a second resolution greater than the first resolution; an output path coupled to the symbol receiver and configured to forward the first modulated symbol; a decision device coupled to the symbol receiver and configured to determine a most probable symbol represented by the first modulated symbol; a phase detector coupled to the decision device and configured to compare the first modulated symbol and the most probable symbol to generate a phase error value; and a phase modifier coupled to the decision device and configured to determine a phase correction value based on the phase error value and to adjust the phase of the second modulated symbol based on the phase correction value.

Abstract translation: 接收机可以包括：符号接收器，被配置为以第一分辨率接收第一调制符号，然后以大于第一分辨率的第二分辨率接收第二调制符号; 输出路径，其耦合到所述符号接收器并且被配置为转发所述第一调制符号; 决定装置，其耦合到所述符号接收器并且被配置为确定由所述第一调制符号表示的最可能符号; 相位检测器，耦合到所述判决装置，并被配置为比较所述第一调制符号和最可能符号以产生相位误差值; 以及相位修改器，其耦合到所述判定装置，并且被配置为基于所述相位误差值确定相位校正值，并且基于所述相位校正值来调整所述第二调制符号的相位。

公开(公告)号：US20130100967A1

公开(公告)日：2013-04-25

申请号：US13625761

申请日：2012-09-24

Applicant: Aviat U.S., Inc.

Inventor： Philip Secker ,  Emerick Vann

IPC: H04J3/06

CPC classification number: H04J3/0691 ,  H03L7/0805 ,  H03L7/0807 ,  H04J3/0638 ,  H04J3/0647 ,  H04J3/12 ,  H04L7/0008 ,  H04L7/0337

Abstract: A terminal of an exemplary transmitting device is configured to receive an initial clock signal. A first phase lock loop is configured to lock a phase of an initial periodic signal with a phase of the initial clock signal. A transmitting data block interface is configured to provide the plurality of data blocks with samples of the initial periodic signal to a receiving device. An exemplary receiving device includes a receiving data block interface configured to receive the plurality of data blocks. A second phase lock loop is configured to recreate the initial periodic signal and lock a phase of the recreated periodic signal with a phase of the samples of the initial periodic signal. The clock signal generator is configured to recreate and provide the initial clock signal. The recreated clock signal is synchronized to the initial clock signal based on the phase of the recreated periodic signal.

Abstract translation: 示例性发送设备的终端被配置为接收初始时钟信号。 第一锁相环被配置为用初始时钟信号的相位锁定初始周期信号的相位。 发送数据块接口被配置为向接收设备提供多个数据块与初始周期信号的采样。 示例性接收设备包括被配置为接收多个数据块的接收数据块接口。 第二锁相环配置成重新创建初始周期信号，并用初始周期信号的样本的相位来锁定重新创建的周期信号的相位。 时钟信号发生器被配置为重建并提供初始时钟信号。 重新创建的时钟信号基于重新创建的周期信号的相位与初始时钟信号同步。