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公开(公告)号：US09154085B2
公开(公告)日：2015-10-06
申请号：US14314906
申请日：2014-06-25
Applicant: Aviat U.S., Inc.
Inventor： Frank Matsumoto , Youming Qin
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。
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12.发明授权Systems and methods for asynchronous re-modulation with adaptive I/Q adjustment 有权具有自适应I / Q调整的异步重新调制的系统和方法公开(公告)号：US09077425B2
公开(公告)日：2015-07-07
申请号：US14155211
申请日：2014-01-14
Applicant: Aviat U.S., Inc.
Inventor： Emerick Vann , Yen-Fang Chao , Youming Qin , Roland Matian
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.
Abstract translation: 各种实施例提供了用于使用解调然后再调制将一个调制信号信号转换成另一调制信号的系统和方法。 根据一些实施例，信号接收系统可以包括将第一调制信号解调为同相（“I”）信号和正交（“Q”）信号的I / Q解调器，I / Q信号调节器， 自适应地调整Q信号以增加基于第二调制信号的瞬态信号的信噪比（SNR），以及I / Q调制器，其将I信号和经调整的Q信号调制为第二调制信号 信号。 为了增加SNR，可以基于在由I / Q调制器下游的解调器解调期间为瞬态信号确定的计算误差来调整Q信号。
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13.发明授权Systems and methods for biasing amplifiers during high-power operation with adaptive closed-loop control 有权在大功率运行期间利用自适应闭环控制来偏置放大器的系统和方法公开(公告)号：US09059666B2
公开(公告)日：2015-06-16
申请号：US14184282
申请日：2014-02-19
Applicant: Aviat U.S., Inc.
Inventor： Frank Matsumoto , Youming Qin , Andres Goytia , Cuong Nguyen
IPC: H03F3/21
CPC classification number: H03F3/21 , H03F1/0272 , H03F1/3247 , H03F3/19 , H03F3/245
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 an adaptive closed-loop control of the drain current of the power amplifier to achieve improved performance for the power amplifier. Additionally, for some embodiments, use of the adaptive closed-loop control of the drain current of the power amplifier depends on the power region in which the power amplifier is operating (e.g., depends on the radio frequency power region).
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闭环控制来实现功率放大器的改进的性能。 此外，对于一些实施例，功率放大器的漏极电流的自适应闭环控制的使用取决于功率放大器正在工作的功率区域（例如，取决于射频功率区域）。
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公开(公告)号：US20130082775A1
公开(公告)日：2013-04-04
申请号：US13633066
申请日：2012-10-01
Applicant: Aviat U.S., Inc.
Inventor： Frank Matsumoto , Youming Qin
IPC: H03F1/32
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。
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公开(公告)号：US09813198B2
公开(公告)日：2017-11-07
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 , H04L1/00 , H04B1/00 , H04B1/16 , H03C3/40 , H03D3/00 , H03D7/16 , H04B1/30 , H04L27/38 , H04B1/28 , H04B1/10
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.
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Patent Agency Ranking
公开(公告)号：US09531412B2
公开(公告)日：2016-12-27
申请号：US14704468
申请日：2015-05-05
Applicant: Aviat U.S., Inc.
Inventor： Jayesh Nath , Ying Shen , Frank Matsumoto , Youming Qin , David C. M. Pham
IPC: H04B1/04
CPC classification number: H04B1/0475 , H03F1/3241 , H03F1/3247 , H03F1/345 , H03F3/19 , H03F3/245 , H03F3/60 , H03F2200/204 , H03F2200/207 , H03F2200/423 , H04B2001/0425
Abstract: Various embodiments provide for systems and methods for increased linear output power of a transmitter. An exemplary wireless communications system for transmitting an input signal comprises a predistorter module, a GaN power amplifier, a coupler, and an antenna. The predistorter module is configured to detect existing distortion by comparing the input signal to a feedback signal and generate a correction signal. The predistorter may adaptively adjust its operation to minimize the existing distortion due to GaN power amplifier nonlinear characteristics. The result is that the GaN power amplifier may send a power signal of improved linearity to the antenna. The coupler is configured to sample the amplified signal from the GaN power amplifier to generate the feedback signal. The antenna is configured to transmit the amplified signal.
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17.发明申请SYSTEMS AND METHODS FOR IMPROVED POWER YIELD AND LINEARIZATION IN RADIO FREQUENCY TRANSMITTERS 有权用于改善无线电频率发射机功率和线性化的系统和方法公开(公告)号：US20160261240A1
公开(公告)日：2016-09-08
申请号：US15156832
申请日：2016-05-17
Applicant: Aviat U.S., Inc.
Inventor： Frank Matsumoto , Youming Qin , David C.M. Pham , Jayesh Nath , Ying Shen
CPC classification number: H03F1/32 , H03F1/0205 , H03F1/0211 , H03F1/3247 , H03F3/19 , H03F3/21 , H03F3/245 , H03F2200/129 , H03F2200/207 , H03F2200/451 , H04B1/04 , H04B2001/0425
Abstract: An exemplary system comprises a linearizer module, a first upconverter module, a power amplifier module, a signal sampler module, and a downconverter module. The linearizer module may be configured to receive a first intermediate frequency signal and to adjust the first intermediate frequency signal based on a reference signal and a signal based on a second intermediate frequency signal. The first upconverter module may be configured to receive and up-convert a signal based on the adjusted first intermediate frequency signal to a radio frequency signal. The power amplifier module may be configured to receive and amplify a power of a signal based on the radio frequency signal. The signal sampler module may be configured to sample a signal based on the amplified radio frequency signal. The downconverter module may be configured to receive and down-convert a signal based on the sampled radio frequency signal to the second intermediate frequency signal.
Abstract translation: 示例性系统包括线性化模块，第一上变频器模块，功率放大器模块，信号采样器模块和下变频器模块。 线性化模块可以被配置为接收第一中频信号并且基于参考信号和基于第二中频信号的信号来调整第一中频信号。 第一上变频器模块可以被配置为基于经调整的第一中频信号将信号接收和上变频到射频信号。 功率放大器模块可以被配置为基于射频信号来接收和放大信号的功率。 信号采样器模块可以被配置为基于放大的射频信号对信号进行采样。 下变频器模块可以被配置为基于所采样的射频信号将信号接收和下变频到第二中频信号。
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18.发明申请公开(公告)号：US20160233945A1
公开(公告)日：2016-08-11
申请号：US15092424
申请日：2016-04-06
Applicant: Aviat U.S., Inc.
Inventor： Youming Qin , Frank Matsumoto
CPC classification number: H04B7/10 , H04B7/0413
Abstract: According to various embodiments, systems and methods are provided for improving signal quality and signal reliability over wireless communication using polarization diversity. Some embodiments use polarization diversity on a wireless channel to address and compensate for fading conditions such as non-frequency selective fading (also referred to as power fading, attenuation fading, and flat fading) and frequency selective fading (also referred to as multipath fading and dispersive fading). For example, some embodiments utilize a horizontal signal and a vertical signal on the same wireless channel when wirelessly communicating data between a transmitter and a receiver to address a fading condition.
Abstract translation: 根据各种实施例，提供了用于通过使用极化分集的无线通信来改善信号质量和信号可靠性的系统和方法。 一些实施例使用无线信道上的极化分集来解决和补偿衰落条件，例如非频率选择性衰落（也称为功率衰落，衰减衰落和平坦衰落）和频率选择性衰落（也称为多径衰落和 色散褪色）。 例如，当在发射机和接收机之间无线地传送数据以解决衰落状况时，一些实施例在同一无线信道上利用水平信号和垂直信号。
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19.发明申请SYSTEMS AND METHODS FOR REDUCTION OF TRIPLE TRANSIT EFFECTS IN TRANSCEIVER COMMUNICATIONS 审中-公开用于减少收发机通信中的三重传输效应的系统和方法公开(公告)号：US20150139286A1
公开(公告)日：2015-05-21
申请号：US14598712
申请日：2015-01-16
Applicant: Aviat U.S., Inc.
Inventor： Youming Qin , Frank Matsumoto , Emerick Vann
CPC classification number: H04L25/085 , H04B3/46 , H04W88/085
Abstract: Systems and methods for transceiver communication are discussed herein. An exemplary system comprises a first transceiver unit comprising a first attenuator, a filter module, a gain module, and an antenna. The first attenuator may be configured to attenuate a transmission signal from a second transceiver module over a coaxial cable. The transmission signal may comprise a primary component and a triple transit component. The first attenuator may further be configured to attenuate and provide a reflection signal over the coaxial cable to the second transceiver module. The reflection signal may be based on a reflection of at least a portion of the transmission signal. The filter module configured to filter the transmission signal. The gain module may be configured to increase the gain of the transmission signal. The antenna may be configured to transmit the transmission signal.
Abstract translation: 本文讨论了收发器通信的系统和方法。 示例性系统包括第一收发器单元，其包括第一衰减器，滤波器模块，增益模块和天线。 第一衰减器可以被配置为通过同轴电缆衰减来自第二收发器模块的传输信号。 传输信号可以包括主要部件和三重传送部件。 第一衰减器还可以被配置为衰减并且通过同轴电缆向第二收发器模块提供反射信号。 反射信号可以基于传输信号的至少一部分的反射。 所述过滤器模块被配置为过滤所述传输信号。 增益模块可以被配置为增加发送信号的增益。 天线可以被配置为发送传输信号。
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公开(公告)号：US20140306757A1
公开(公告)日：2014-10-16
申请号：US14314906
申请日：2014-06-25
Applicant: Aviat U.S., Inc.
Inventor： Frank Matsumoto , Youming Qin
IPC: H03F1/32
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。
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