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公开(公告)号：US20230344390A1
公开(公告)日：2023-10-26
申请号：US17660172
申请日：2022-04-21
Applicant: QUALCOMM Incorporated
Inventor： Alaaeldien Mohamed Abdelrazek Medra , Xinmin Yu , Yunfei Feng
CPC classification number: H03F3/19 , H03G3/3036 , H04B1/04 , H03F2200/294 , H03F2200/451 , H03G2201/103 , H03G2201/307
Abstract: This disclosure provides systems, methods, and devices for wireless communication that support low noise amplification of mmWave radio frequency (RF) signals. In a first aspect, a low noise amplifier includes a first stage amplifier; a second stage amplifier; a configurable first stage bypass coupled between a first input and a first output of the first stage amplifier; and a configurable second stage bypass coupled between a second input and a second output of the second stage amplifier. Other aspects and features are also claimed and described.
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公开(公告)号：US10756772B1
公开(公告)日：2020-08-25
申请号：US16418734
申请日：2019-05-21
Applicant: Qualcomm Incorporated
Inventor： Chirag Dipak Patel , Jeremy Goldblatt , Yunfei Feng , Li Liu , Xinmin Yu , Aliakbar Homayoun
Abstract: An apparatus is disclosed for mixing signals with a multi-mode mixer for frequency translation. In example implementations, a multi-mode mixer includes a supply voltage node, a ground node, a first data signal coupler, and a second data signal coupler. The multi-mode mixer also includes a mixer core and a current control switch. The mixer core is coupled between the first data signal coupler and the second data signal coupler. The current control switch is configured to selectively enable or disable flow of a current through the mixer core. The first data signal coupler, the second data signal coupler, the mixer core, and the current control switch are coupled together in series between the supply voltage node and the ground node.
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公开(公告)号：US20180159474A1
公开(公告)日：2018-06-07
申请号：US15831370
申请日：2017-12-04
Applicant: QUALCOMM Incorporated
Inventor： Xinmin Yu , Timothy Donald Gathman , Lai Kan Leung
IPC: H03D7/14
CPC classification number: H03D7/1491 , H03B2200/0062 , H03D7/1425 , H03D7/1441 , H03D7/1458 , H03D2200/0043 , H04B1/26
Abstract: Methods, systems, and devices for wireless communication are described for enhanced broadband operation of an active mixer. In an example, an apparatus may include an active mixer that converts between radio frequency (RF) signals and intermediate frequency (IF) signals based at least in part on an alternating current (AC) local oscillator (LO) signal, wherein a direct current (DC) current generated within the active mixer is dependent in part on a bias voltage and the AC LO signal. The apparatus may include a mixer biasing circuit that generates the bias voltage for the active mixer, a magnitude of the bias voltage having an inverse relationship to an amplitude of the AC LO signal.
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公开(公告)号：US11632098B2
公开(公告)日：2023-04-18
申请号：US17211716
申请日：2021-03-24
Applicant: Qualcomm Incorporated
Inventor： Timothy Donald Gathman , Lai Kan Leung , Chirag Dipak Patel , Xinmin Yu , Rajagopalan Rangarajan
Abstract: An example apparatus includes a polyphase transconductance-capacitor filter. The polyphase filter includes a DC bias voltage node, a plus in-phase filter unit, a minus in-phase filter unit, a plus quadrature-phase filter unit, and a minus quadrature-phase filter unit. Each filter unit respectively includes an input node, an output node, and a control node. The polyphase filter also includes a plus in-phase switch and a minus in-phase switch. The plus in-phase switch is coupled to the control node of the plus in-phase filter unit, the DC bias voltage node, and the input node of one or both of the plus quadrature-phase filter unit and the minus quadrature-phase filter unit. The minus in-phase switch is coupled to the control node of the minus in-phase filter unit, the DC bias voltage node, and the input node of one or both of the plus quadrature-phase filter unit and the minus quadrature-phase filter unit.
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公开(公告)号：US11581644B2
公开(公告)日：2023-02-14
申请号：US16835177
申请日：2020-03-30
Applicant: Qualcomm Incorporated
Inventor： Xinmin Yu , Lai Kan Leung
Abstract: An apparatus is disclosed for bidirectional amplification with phase-shifting. In example implementations, an apparatus includes a phase shifter with a bidirectional amplifier. The bidirectional amplifier includes a first transistor coupled between a first plus node and a second minus node, a second transistor coupled between a first minus node and a second plus node, a third transistor coupled between the first plus node and the second minus node, and a fourth transistor coupled between the first minus node and the second plus node. The bidirectional amplifier also includes a fifth transistor coupled between the first plus node and the second plus node, a sixth transistor coupled between the first minus node and the second minus node, a seventh transistor coupled between the first plus node and the second plus node, and an eighth transistor coupled between the first minus node and the second minus node.
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Patent Agency Ranking
公开(公告)号：US10193580B2
公开(公告)日：2019-01-29
申请号：US15927022
申请日：2018-03-20
Applicant: QUALCOMM Incorporated
Inventor： Chirag Dipak Patel , Lai Kan Leung , Xinmin Yu , Timothy Donald Gathman , Ravi Sridhara
Abstract: Devices and techniques are described to extract specific frequency band signals from a wide-band radio-frequency signal. A network entity may include an antenna for receiving the wide-band radio-frequency signal and may include a receiver circuit for processing the wide-band radio-frequency signal. The receiver circuit may include a transconductance amplifier and a plurality of single-band circuits. The transconductance amplifier may be configured to generate an amplified wide-band radio-frequency signal and send it to one or more of the single-band circuits. Each single-band circuit may be configured to extract a different frequency band signal from the amplified wide-band radio-frequency signal.
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公开(公告)号：US20210175589A1
公开(公告)日：2021-06-10
申请号：US16785440
申请日：2020-02-07
Applicant: Qualcomm Incorporated
Inventor： Chirag Dipak Patel , Xinmin Yu , Lai Kan Leung
Abstract: An apparatus is disclosed for phase-shifting signals. In example implementations, the apparatus includes a phase shifter. The phase shifter includes a first port, a second port, a vector modulator coupled to the first port, and a signal phase generator. The signal phase generator includes multiple amplifiers coupled between the vector modulator and the second port. The signal phase generator also includes multiple capacitors that couple the multiple amplifiers together to form a loop. Each respective capacitor of the multiple capacitors is coupled between a respective pair of consecutive amplifiers of the multiple amplifiers to form the loop.
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公开(公告)号：US20200350679A1
公开(公告)日：2020-11-05
申请号：US16835177
申请日：2020-03-30
Applicant: Qualcomm Incorporated
Inventor： Xinmin Yu , Lai Kan Leung
Abstract: An apparatus is disclosed for bidirectional amplification with phase-shifting. In example implementations, an apparatus includes a phase shifter with a bidirectional amplifier. The bidirectional amplifier includes a first transistor coupled between a first plus node and a second minus node, a second transistor coupled between a first minus node and a second plus node, a third transistor coupled between the first plus node and the second minus node, and a fourth transistor coupled between the first minus node and the second plus node. The bidirectional amplifier also includes a fifth transistor coupled between the first plus node and the second plus node, a sixth transistor coupled between the first minus node and the second minus node, a seventh transistor coupled between the first plus node and the second plus node, and an eighth transistor coupled between the first minus node and the second minus node.
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公开(公告)号：US10673411B2
公开(公告)日：2020-06-02
申请号：US16256733
申请日：2019-01-24
Applicant: QUALCOMM Incorporated
Inventor： Xinmin Yu , Lai Kan Leung , Yunfei Feng , Chirag Dipak Patel
Abstract: The present disclosure provides an apparatus that includes a first mixer circuit configured to convert between an RF signal and an IF signal based at least in part on an local oscillator (LO) signal. The first mixer circuit is electrically coupled to a first node that is configured to receive the LO signal and a first bias voltage, a second node that is configured to receive the RF signal or the IF signal, and a third node that is configured to provide the IF signal or the RF signal. The apparatus further includes a second mixer circuit electrically coupled to a fourth node configured to receive the LO signal and a second bias voltage, the second node, and the third node. The second bias voltage has a voltage level that is offset from the first bias voltage.
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公开(公告)号：US10651807B2
公开(公告)日：2020-05-12
申请号：US16115475
申请日：2018-08-28
Applicant: Qualcomm Incorporated
Inventor： Timothy Donald Gathman , Chirag Dipak Patel , Lai Kan Leung , Xinmin Yu
Abstract: An apparatus is disclosed for complementary variable gain amplification. In an example aspect, the apparatus includes a variable gain amplifier that includes multiple amplifiers. The multiple amplifiers include at least one first amplifier and at least one second amplifier cascaded together in series. The first amplifier includes a first set of transistors having a first doping type. At least a portion of the first set of transistors is configured to implement a first current mirror. The second amplifier includes a second set of transistors having a second doping type. At least a portion of the second set of transistors is configured to implement a second current mirror. The second current mirror is coupled to the first current mirror.
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