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公开(公告)号：US11595007B2
公开(公告)日：2023-02-28
申请号：US17081873
申请日：2020-10-27
Applicant: QUALCOMM Incorporated
Inventor： Makar Snai , Manohar Seetharam
Abstract: An active feedback low-noise amplifier includes a feedback transistor whose source couples through a feedback path to an input signal node. A bias transistor biases the source of the feedback transistor with a bias current responsive to an input signal carried on the input signal node.
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Patent Agency Ranking
公开(公告)号：US10419045B1
公开(公告)日：2019-09-17
申请号：US16047563
申请日：2018-07-27
Applicant: QUALCOMM Incorporated
Inventor： Makar Snai , Manohar Seetharam , Ehab Abdel Ghany , Vinod Panikkath
Abstract: Certain aspects of the present disclosure generally relate to a circuit for signal processing. The circuit generally includes a first transformer having a first inductive element magnetically coupled with a second inductive element, and a second transformer having a third inductive element magnetically coupled with a fourth inductive element. In certain aspects, the first inductive element may be coupled in series with the third inductive element. In certain aspects, the circuit also includes a capacitive element coupled in parallel with the fourth inductive element, the capacitive element and the fourth inductive element forming a notch circuit, the notch circuit coupled in series with the second inductive element.
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公开(公告)号：US10581385B2
公开(公告)日：2020-03-03
申请号：US16519877
申请日：2019-07-23
Applicant: QUALCOMM Incorporated
Inventor： Makar Snai , Manohar Seetharam , Ehab Abdel Ghany , Vinod Panikkath
Abstract: Certain aspects of the present disclosure are directed to a circuit for signal processing. The circuit generally includes a first transformer having a first inductive element magnetically coupled with a second inductive element, and a second transformer having a third inductive element magnetically coupled with a fourth inductive element, wherein the first inductive element is coupled in series with the third inductive element. In certain aspects, the circuit also includes a first switch coupled in parallel with the third inductive element, a capacitive element coupled in parallel with the fourth inductive element, wherein a notch is formed at least by the capacitive element and the fourth inductive element, the notch circuit coupled in series with the second inductive element, and a second switch coupled in parallel with the fourth inductive element.
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公开(公告)号：US10541654B1
公开(公告)日：2020-01-21
申请号：US16030658
申请日：2018-07-09
Applicant: Qualcomm Incorporated
Inventor： Makar Snai , Ehab Abdel Ghany , Manohar Seetharam , Li-chung Chang
Abstract: Amplification with post-distortion compensation is disclosed. In an example aspect, an apparatus includes a voltage rail and a cascode amplifier. The cascode amplifier includes an amplification node, a cascode node, and a common-source node. The cascode amplifier also includes at least one cascode transistor, an input transistor, and a compensation transistor. The cascode transistor is coupled between the amplification node and the cascode node. The input transistor is coupled between the cascode node and the common-source node. The compensation transistor is coupled between the voltage rail and the cascode node.
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公开(公告)号：US20200014340A1
公开(公告)日：2020-01-09
申请号：US16030658
申请日：2018-07-09
Applicant: Qualcomm Incorporated
Inventor： Makar Snai , Ehab Abdel Ghany , Manohar Seetharam , Li-chung Chang
Abstract: Amplification with post-distortion compensation is disclosed. In an example aspect, an apparatus includes a voltage rail and a cascode amplifier. The cascode amplifier includes an amplification node, a cascode node, and a common-source node. The cascode amplifier also includes at least one cascode transistor, an input transistor, and a compensation transistor. The cascode transistor is coupled between the amplification node and the cascode node. The input transistor is coupled between the cascode node and the common-source node. The compensation transistor is coupled between the voltage rail and the cascode node.
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公开(公告)号：US20160079946A1
公开(公告)日：2016-03-17
申请号：US14485368
申请日：2014-09-12
Applicant: QUALCOMM Incorporated
Inventor： Gireesh Rajendran , Rakesh Kumar , Manohar Seetharam
IPC: H03G3/30
CPC classification number: H03G3/3042 , H03F1/223 , H03F1/26 , H03F3/193 , H03F3/195 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/294 , H03F2200/492 , H03F2203/7209
Abstract: An apparatus includes a first transistor configured to amplify first signal components within a first frequency band of a radio frequency signal, a second transistor configured to amplify second signal components within a second frequency band of the radio frequency signal, and a third transistor configured to amplify third signal components within a third frequency band of the radio frequency signal. The apparatus also includes a degeneration inductor having a first tapping point, a second tapping point, and a third tapping point. The first tapping point is coupled to the first transistor, the second tapping point is coupled to the second transistor, and the third tapping point is coupled to the third transistor.
Abstract translation: 一种装置包括：第一晶体管，被配置为放大射频信号的第一频带内的第一信号分量;第二晶体管，被配置为放大射频信号的第二频带内的第二信号分量，以及第三晶体管， 第三信号分量在射频信号的第三频带内。 该装置还包括具有第一分接点，第二分接点和第三分接点的退化电感器。 第一抽头点耦合到第一晶体管，第二抽头点耦合到第二晶体管，第三抽头点耦合到第三晶体管。
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