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公开(公告)号：US09800273B1
公开(公告)日：2017-10-24
申请号：US15446847
申请日：2017-03-01
CPC分类号： H04B1/0458 , H03F3/193 , H03F3/195 , H03F3/245 , H03F3/3022 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/165 , H03F2200/294 , H03F2200/357 , H03F2200/451 , H04B1/0475
摘要： A device and method for amplifying signals is provided. The device can have an input to receive an input signal having a first desired signal on a first carrier, a second desired signal on a second carrier, and one or more interfering signals. The device can have a first carrier aggregation (CA) chain for use with the first desired signal and a second CA chain for use with the second desired signal. The first and second CA chains can be coupled to the input. The first and second CA chains can have a plurality of transconductance stages. Each of the transconductance stages can be configured as a high impedance stage or a low impedance stage. The transconductance stages can be selectively activated to incrementally adjust the transconductance, and therefore the input impedance, of each of the CA chains.
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公开(公告)号：US20160126896A1
公开(公告)日：2016-05-05
申请号：US14643640
申请日：2015-03-10
发明人： Ojas Mahendra Choksi , Bin Fan , Bassel Hanafi
CPC分类号： H03F1/565 , H03F1/3211 , H03F1/347 , H03F3/193 , H03F3/195 , H03F3/45071 , H03F3/45188 , H03F3/45475 , H03F2200/294 , H03F2200/301 , H03F2200/451 , H03F2200/54 , H03F2203/21112 , H03F2203/45306 , H03F2203/45318 , H03F2203/45386 , H03F2203/45562 , H03F2203/45616 , H03F2203/45621 , H04B1/525
摘要： An apparatus includes: first and second transistors, each of the first and second transistors includes a gate terminal, a source terminal, and a drain terminal; and a transformer including a primary winding and first and second secondary windings, the primary winding is coupled to a first input node configured to receive an input signal and a second input node configured to receive a potential, the first and second secondary windings are coupled to gate terminals of the first and second transistors and cross-coupled to source terminals of the first and second transistors.
摘要翻译： 一种装置包括：第一和第二晶体管，第一和第二晶体管中的每一个包括栅极端子，源极端子和漏极端子; 以及包括初级绕组和第一和第二次级绕组的变压器，所述初级绕组耦合到被配置为接收输入信号的第一输入节点和被配置为接收电位的第二输入节点，所述第一和第二次级绕组耦合到 第一和第二晶体管的栅极端子和第一和第二晶体管的交叉耦合到源极端子。
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公开(公告)号：US09628031B2
公开(公告)日：2017-04-18
申请号：US14643640
申请日：2015-03-10
发明人： Ojas Mahendra Choksi , Bin Fan , Bassel Hanafi
CPC分类号： H03F1/565 , H03F1/3211 , H03F1/347 , H03F3/193 , H03F3/195 , H03F3/45071 , H03F3/45188 , H03F3/45475 , H03F2200/294 , H03F2200/301 , H03F2200/451 , H03F2200/54 , H03F2203/21112 , H03F2203/45306 , H03F2203/45318 , H03F2203/45386 , H03F2203/45562 , H03F2203/45616 , H03F2203/45621 , H04B1/525
摘要： An apparatus includes: first and second transistors, each of the first and second transistors includes a gate terminal, a source terminal, and a drain terminal; and a transformer including a primary winding and first and second secondary windings, the primary winding is coupled to a first input node configured to receive an input signal and a second input node configured to receive a potential, the first and second secondary windings are coupled to gate terminals of the first and second transistors and cross-coupled to source terminals of the first and second transistors.
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公开(公告)号：US10033340B1
公开(公告)日：2018-07-24
申请号：US15400078
申请日：2017-01-06
摘要： Certain aspects of the present disclosure generally relate to a multi-output amplifier implemented using a capacitive attenuator. For example, the multi-output amplifier generally includes a first capacitive attenuator coupled to an input node of the multi-output amplifier. In certain aspects, the multi-output amplifier also includes a first amplification stage having an input coupled to a tap node of the first capacitive attenuator and an output coupled to a first output node of the multi-output amplifier, and a second amplification stage having an output coupled to a second output node of the multi-output amplifier. For certain aspects, the multi-output amplifier includes a second capacitive attenuator coupled to the input node of the multi-output amplifier, and the second amplification stage may have an input coupled to a tap node of the second capacitive attenuator.
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公开(公告)号：US09450626B2
公开(公告)日：2016-09-20
申请号：US14643498
申请日：2015-03-10
发明人： Ojas Mahendra Choksi , Bin Fan , Bassel Hanafi , Hasnain Mohammedi Lakdawala , Prashanth Akula , Faramarz Sabouri
CPC分类号： H04B1/16 , H04B1/1018 , H04B1/1027 , H04B1/1638 , H04B2001/0416
摘要： An apparatus including: at least one differential amplifier configured to amplify a radio frequency signal; a mixer configured to mix the radio frequency signal from the at least one differential amplifier with a local oscillator signal; and a low-pass filter coupled to the mixer, the low-pass filter includes a capacitor and at least one variable resistor configured to tune the low-pass filter.
摘要翻译： 一种装置，包括：至少一个差分放大器，被配置为放大射频信号; 配置为将来自所述至少一个差分放大器的射频信号与本地振荡器信号混合的混频器; 以及耦合到混频器的低通滤波器，低通滤波器包括电容器和配置成调谐低通滤波器的至少一个可变电阻器。
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公开(公告)号：US20160142085A1
公开(公告)日：2016-05-19
申请号：US14643498
申请日：2015-03-10
发明人： Ojas Mahendra Choksi , Bin Fan , Bassel Hanafi , Hasnain Mohammedi Lakdawala , Prashanth Akula , Faramarz Sabouri
CPC分类号： H04B1/16 , H04B1/1018 , H04B1/1027 , H04B1/1638 , H04B2001/0416
摘要： An apparatus including: at least one differential amplifier configured to amplify a radio frequency signal; a mixer configured to mix the radio frequency signal from the at least one differential amplifier with a local oscillator signal; and a low-pass filter coupled to the mixer, the low-pass filter includes a capacitor and at least one variable resistor configured to tune the low-pass filter.
摘要翻译： 一种装置，包括：至少一个差分放大器，被配置为放大射频信号; 配置为将来自所述至少一个差分放大器的射频信号与本地振荡器信号混合的混频器; 以及耦合到混频器的低通滤波器，低通滤波器包括电容器和配置成调谐低通滤波器的至少一个可变电阻器。
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