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公开(公告)号：US09413296B2
公开(公告)日：2016-08-09
申请号：US14274185
申请日：2014-05-09
Applicant: QUALCOMM Incorporated
Inventor： Chao Lu
CPC classification number: H03F1/0205 , H03F1/223 , H03F1/3205 , H03F3/211 , H03F3/245 , H03F3/3022 , H03F3/72 , H03F2200/447 , H03F2200/468 , H03F2203/21106 , H03F2203/7236
Abstract: An apparatus includes a first amplifier that includes a transistor that is coupled to an input terminal of the first amplifier. The transistor is biased to operate in a first mode based on a first operating point. The apparatus also includes a second amplifier coupled in parallel with the first amplifier. The second amplifier includes a second transistor coupled to an input terminal of the second amplifier. The second transistor is biased to operate in a second mode based on a second operating point that is temperature-dependent.
Abstract translation: 一种装置包括：第一放大器，包括耦合到第一放大器的输入端的晶体管。 晶体管被偏置以基于第一工作点在第一模式下操作。 该装置还包括与第一放大器并联耦合的第二放大器。 第二放大器包括耦合到第二放大器的输入端的第二晶体管。 基于与温度有关的第二工作点，第二晶体管被偏置以在第二模式中操作。
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公开(公告)号：US11146306B2
公开(公告)日：2021-10-12
申请号：US16248270
申请日：2019-01-15
Applicant: QUALCOMM Incorporated
Inventor： Chao Lu , William Si , Shahram Abdollahi-Alibeik
Abstract: Methods and apparatuses to adjust isolation between I/O ports. An apparatus includes a die, a first input or output (I/O) port, a second I/O port, and a third I/O port. The second I/O port is between the first I/O port and the third I/O port. A variable capacitor is electrically connected to the second I/O port and is configurable to adjust isolation between the first I/O port and the third I/O port. A method includes performing, by a die, a first RF function via a first I/O port; tuning a variable capacitor electrically connected to a second I/O port to adjust isolation between the first I/O port and a third I/O port, the second I/O port being between the first I/O port and the third I/O port; and performing, by the die, a second RF function via a third I/O port.
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公开(公告)号：US09391651B1
公开(公告)日：2016-07-12
申请号：US14680756
申请日：2015-04-07
Applicant: QUALCOMM Incorporated
Inventor： Saihua Lin , Chao Lu , Cheng-Han Wang
IPC: H04B1/04
CPC classification number: H04B1/0475 , H03F1/223 , H03F1/3205 , H03F1/3223 , H03F3/193 , H03F3/211 , H03F3/24 , H03F3/245 , H03F2200/336 , H03F2200/451 , H04B2001/0408
Abstract: A method and apparatus are disclosed for a configurable amplifier. When operating in a first operating mode, the configurable amplifier may amplify a communication signal and may cancel or attenuate a second harmonic component associated with the communication signal. When operating in a second operating mode, the configurable amplifier may amplify the communication signal without cancelling or attenuating the second harmonic component associated with the communication signal.
Abstract translation: 公开了一种用于可配置放大器的方法和装置。 当在第一操作模式下操作时，可配置放大器可以放大通信信号，并且可以取消或衰减与通信信号相关联的二次谐波分量。 当在第二操作模式下操作时，可配置放大器可放大通信信号，而不消除或衰减与通信信号相关联的二次谐波分量。
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公开(公告)号：US20150288333A1
公开(公告)日：2015-10-08
申请号：US14274185
申请日：2014-05-09
Applicant: QUALCOMM Incorporated
Inventor： Chao Lu
CPC classification number: H03F1/0205 , H03F1/223 , H03F1/3205 , H03F3/211 , H03F3/245 , H03F3/3022 , H03F3/72 , H03F2200/447 , H03F2200/468 , H03F2203/21106 , H03F2203/7236
Abstract: An apparatus includes a first amplifier that includes a transistor that is coupled to an input terminal of the first amplifier. The transistor is biased to operate in a first mode based on a first operating point. The apparatus also includes a second amplifier coupled in parallel with the first amplifier. The second amplifier includes a second transistor coupled to an input terminal of the second amplifier. The second transistor is biased to operate in a second mode based on a second operating point that is temperature-dependent.
Abstract translation: 一种装置包括：第一放大器，包括耦合到第一放大器的输入端的晶体管。 晶体管被偏置以基于第一工作点在第一模式下操作。 该装置还包括与第一放大器并联耦合的第二放大器。 第二放大器包括耦合到第二放大器的输入端的第二晶体管。 基于与温度有关的第二工作点，第二晶体管被偏置以在第二模式中操作。
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