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公开(公告)号：US10355724B2
公开(公告)日：2019-07-16
申请号：US15884376
申请日：2018-01-30
发明人： Jinghang Feng , Shuqi Zheng , Netsanet Gebeyehu , Ying Shi , James Phillip Young
摘要： Systems, devices and methods related to multi-band power amplifier. In some embodiments, a power amplifier module includes a power amplifier having an output stage and configured to receive a signal. The power amplifier module also includes a first programmable harmonic termination circuit in electrical communication with the output stage of the power amplifier. The first programmable harmonic termination circuit includes a first plurality of capacitors and a first plurality of switches, with at least one of the first plurality of capacitors being in electrical communication with at least one of the first plurality of switches. The power amplifier module further includes a controller configured to modify a configuration of the first plurality of switches of the first programmable harmonic termination circuit based at least in part on a second harmonic frequency of the signal.
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2.发明申请公开(公告)号：US20180120881A1
公开(公告)日：2018-05-03
申请号：US15784757
申请日：2017-10-16
发明人： Netsanet Gebeyehu , Ying Shi , Jinghang Feng
IPC分类号： G05F1/575
CPC分类号： G05F1/575
摘要： Apparatus and methods for programmable low dropout (LDO) regulators for radio frequency (RF) electronics are provided herein. In certain configurations, an LDO regulator for generating a programmable output voltage includes a regulation field-effect transistor (FET) having a drain electrically connected to the LDO regulator's output, an error amplifier that controls a gate of the regulation FET, a feedback circuit that provides a feedback signal to an inverting input of the error amplifier, an output capacitor electrically connected to the LDO regulator's output, and an alternative discharge circuit. When the output voltage of the LDO regulator is programmed from a high voltage level to a low voltage level, the alternative discharge circuit activates to discharge the output capacitor to improve the LDO regulator's transient response.
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公开(公告)号：US09882587B2
公开(公告)日：2018-01-30
申请号：US15085868
申请日：2016-03-30
发明人： Jinghang Feng , Shuqi Zheng , Netsanet Gebeyehu , Ying Shi , James Phillip Young
CPC分类号： H04B1/0067 , H03F1/565 , H03F3/191 , H03F3/217 , H03F3/2176 , H03F3/245 , H03F3/72 , H03F2200/111 , H03F2200/171 , H03F2200/18 , H03F2200/387 , H03F2200/411 , H03F2200/451 , H03F2203/7209
摘要： Systems, devices and methods related to multi-band power amplifier. In some embodiments, a power amplifier module includes a power amplifier having an output stage and configured to receive a signal. The power amplifier module also includes a first programmable harmonic termination circuit in electrical communication with the output stage of the power amplifier. The first programmable harmonic termination circuit includes a first plurality of capacitors and a first plurality of switches, with at least one of the first plurality of capacitors being in electrical communication with at least one of the first plurality of switches. The power amplifier module further includes a controller configured to modify a configuration of the first plurality of switches of the first programmable harmonic termination circuit based at least in part on a second harmonic frequency of the signal.
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公开(公告)号：US20220006426A1
公开(公告)日：2022-01-06
申请号：US17347039
申请日：2021-06-14
摘要： Apparatus and methods for biasing power amplifiers are provided herein. In certain embodiments, a power amplifier includes a bipolar transistor having a base biased by a bias network having a reactance that controls an impedance at the transistor base to achieve substantially flat phase response over large dynamic power levels. For example, the bias network can have a frequency response, such as a high-pass or band-pass response, that reduces the impact of power level on phase distortion (AM/PM).
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公开(公告)号：US11070171B2
公开(公告)日：2021-07-20
申请号：US16738654
申请日：2020-01-09
摘要： Apparatus and methods for biasing power amplifiers are provided herein. In certain embodiments, a power amplifier includes a bipolar transistor having a base biased by a bias network having a reactance that controls an impedance at the transistor base to achieve substantially flat phase response over large dynamic power levels. For example, the bias network can have a frequency response, such as a high-pass or band-pass response, that reduces the impact of power level on phase distortion (AM/PM).
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6.发明申请APPARATUS AND METHODS FOR PROGRAMMABLE LOW DROPOUT REGULATORS FOR RADIO FREQUENCY ELECTRONICS 有权无线电频率可编程低压差稳压器的装置和方法公开(公告)号：US20170052553A1
公开(公告)日：2017-02-23
申请号：US15219915
申请日：2016-07-26
发明人： Netsanet Gebeyehu , Ying Shi , Jinghang Feng
IPC分类号： G05F1/575
CPC分类号： G05F1/575
摘要： Apparatus and methods for programmable low dropout (LDO) regulators for radio frequency (RF) electronics are provided herein. In certain configurations, an LDO regulator for generating a programmable output voltage includes a regulation field-effect transistor (FET) having a drain electrically connected to the LDO regulator's output, an error amplifier that controls a gate of the regulation FET, a feedback circuit that provides a feedback signal to an inverting input of the error amplifier, an output capacitor electrically connected to the LDO regulator's output, and an alternative discharge circuit. When the output voltage of the LDO regulator is programmed from a high voltage level to a low voltage level, the alternative discharge circuit activates to discharge the output capacitor to improve the LDO regulator's transient response.
摘要翻译： 本文提供了用于射频（RF）电子设备的可编程低压差（LDO）调节器的装置和方法。 在某些配置中，用于产生可编程输出电压的LDO调节器包括具有电连接到LDO调节器的输出的漏极的调节场效应晶体管（FET），控制调节FET的栅极的误差放大器，反馈电路， 向误差放大器的反相输入提供反馈信号，电连接到LDO调节器的输出的输出电容器和替代的放电电路。 当LDO稳压器的输出电压从高电压电平编程到低电压电平时，替代放电电路将激活放电输出电容器，以改善LDO稳压器的瞬态响应。
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7.发明授权公开(公告)号：US10310527B2
公开(公告)日：2019-06-04
申请号：US15784757
申请日：2017-10-16
发明人： Netsanet Gebeyehu , Ying Shi , Jinghang Feng
摘要： Apparatus and methods for programmable low dropout (LDO) regulators for radio frequency (RF) electronics are provided herein. In certain configurations, an LDO regulator for generating a programmable output voltage includes a regulation field-effect transistor (FET) having a drain electrically connected to the LDO regulator's output, an error amplifier that controls a gate of the regulation FET, a feedback circuit that provides a feedback signal to an inverting input of the error amplifier, an output capacitor electrically connected to the LDO regulator's output, and an alternative discharge circuit. When the output voltage of the LDO regulator is programmed from a high voltage level to a low voltage level, the alternative discharge circuit activates to discharge the output capacitor to improve the LDO regulator's transient response.
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公开(公告)号：US20180234061A1
公开(公告)日：2018-08-16
申请号：US15865194
申请日：2018-01-08
发明人： Ying Shi , Jinghang Feng
CPC分类号： H03F3/213 , H03F1/0211 , H03F1/0216 , H03F1/0261 , H03F1/56 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/245 , H03F2200/12 , H03F2200/129 , H03F2200/222 , H03F2200/267 , H03F2200/387 , H03F2200/408 , H03F2200/451 , H03F2200/456 , H03F2200/474 , H03F2200/54 , H03F2200/541 , H03F2200/555 , H03F2203/21103 , H03F2203/21131 , H04B1/40 , H04W52/0229 , H04W52/028 , H04W88/06 , Y02B70/30 , Y02D70/00 , Y02D70/122 , Y02D70/124 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/164
摘要： A power amplifier module that includes a power amplifier and a controller is presented herein. The power amplifier module may include a set of transistor stages and a plurality of bias circuits. At least one transistor stage from the set of transistor stages may be in electrical communication with a first bias circuit and a second bias circuit from the plurality of bias circuits. The first bias circuit can be configured to apply a first bias voltage to the at least one transistor stage and the second bias circuit can be configured to apply a second bias voltage to the at least one transistor stage. The controller may be configured to activate one of the first bias circuit and the second bias circuit.
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公开(公告)号：US09887669B2
公开(公告)日：2018-02-06
申请号：US14975621
申请日：2015-12-18
发明人： Ying Shi , Jinghang Feng
CPC分类号： H03F3/213 , H03F1/0211 , H03F1/0216 , H03F1/0261 , H03F1/56 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/245 , H03F2200/12 , H03F2200/129 , H03F2200/222 , H03F2200/267 , H03F2200/387 , H03F2200/408 , H03F2200/451 , H03F2200/456 , H03F2200/474 , H03F2200/54 , H03F2200/541 , H03F2200/555 , H03F2203/21103 , H03F2203/21131 , H04B1/40 , H04W52/0229 , H04W52/028 , H04W88/06 , Y02B70/30 , Y02D70/00 , Y02D70/122 , Y02D70/124 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/164
摘要： A power amplifier module that includes a power amplifier and a controller is presented herein. The power amplifier module may include a set of transistor stages and a plurality of bias circuits. At least one transistor stage from the set of transistor stages may be in electrical communication with a first bias circuit and a second bias circuit from the plurality of bias circuits. The first bias circuit can be configured to apply a first bias voltage to the at least one transistor stage and the second bias circuit can be configured to apply a second bias voltage to the at least one transistor stage. The controller may be configured to activate one of the first bias circuit and the second bias circuit.
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公开(公告)号：US09246443B2
公开(公告)日：2016-01-26
申请号：US14091155
申请日：2013-11-26
发明人： Ying Shi , Jinghang Feng
CPC分类号： H03F3/213 , H03F1/0211 , H03F1/0216 , H03F1/0261 , H03F1/56 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/245 , H03F2200/12 , H03F2200/129 , H03F2200/222 , H03F2200/267 , H03F2200/387 , H03F2200/408 , H03F2200/451 , H03F2200/456 , H03F2200/474 , H03F2200/54 , H03F2200/541 , H03F2200/555 , H03F2203/21103 , H03F2203/21131 , H04B1/40 , H04W52/0229 , H04W52/028 , H04W88/06 , Y02B70/30 , Y02D70/00 , Y02D70/122 , Y02D70/124 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/164
摘要： A power amplifier module that includes a power amplifier and a controller is presented herein. The power amplifier module may include a set of transistor stages and a plurality of bias circuits. At least one transistor stage from the set of transistor stages may be in electrical communication with a first bias circuit and a second bias circuit from the plurality of bias circuits. The first bias circuit can be configured to apply a first bias voltage to the at least one transistor stage and the second bias circuit can be configured to apply a second bias voltage to the at least one transistor stage. The controller may be configured to activate one of the first bias circuit and the second bias circuit.
摘要翻译： 本文介绍了包括功率放大器和控制器的功率放大器模块。 功率放大器模块可以包括一组晶体管级和多个偏置电路。 来自晶体管级组的至少一个晶体管级可以与来自多个偏置电路的第一偏置电路和第二偏置电路电连通。 第一偏置电路可以被配置为将第一偏置电压施加到至少一个晶体管级，并且第二偏置电路可以被配置为将第二偏置电压施加到至少一个晶体管级。 控制器可以被配置为激活第一偏置电路和第二偏置电路中的一个。
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