公开(公告)号：US20170033750A1

公开(公告)日：2017-02-02

申请号：US14856964

申请日：2015-09-17

Applicant: QUALCOMM Incorporated

Inventor： Alok Prakash Joshi ,  Gireesh Rajendran

IPC: H03F3/45 ,  H03F3/21

CPC classification number: H03F3/45183 ,  H03F1/3211 ,  H03F3/45475 ,  H03F2203/45038 ,  H03F2203/45154 ,  H03F2203/45288 ,  H03F2203/45481

Abstract: Disclosed is a circuit having a differential stage comprising a pair or transistors. The transistors are biased by respective bias transistors. Each bias transistor has a respective feedback network configured to reduce transconductance of the bias transistor, to increase a gain of the differential stage.

Abstract translation: 公开了具有包括一对晶体管的差分级的电路。 晶体管由相应的偏置晶体管偏置。 每个偏置晶体管具有被配置为减小偏置晶体管的跨导的相应反馈网络，以增加差分级的增益。

公开(公告)号：US20160380592A1

公开(公告)日：2016-12-29

申请号：US14752608

申请日：2015-06-26

Applicant: QUALCOMM Incorporated

Inventor： Gireesh Rajendran ,  Alok Prakash Joshi ,  Ashish Lachhwani

IPC: H03D7/14 ,  H03H7/42 ,  H04B1/04

CPC classification number: H03D7/1425 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1483 ,  H03D2200/0019 ,  H03D2200/0023 ,  H03H7/42 ,  H04B1/04 ,  H04B2001/0491

Abstract: Apparatus includes: a mixer configured to mix local a oscillator signal with a baseband signal and output a radio frequency (RF) signal; a first load coupled to the mixer and tuned to an operating frequency; and a second load coupled to the mixer and tuned to a predetermined multiple of the operating frequency.

Abstract translation: 装置包括：混频器，其配置为将本地振荡器信号与基带信号混合并输出射频（RF）信号; 耦合到混频器并被调谐到工作频率的第一负载; 以及耦合到所述混频器并被调谐到所述工作频率的预定倍数的第二负载。

公开(公告)号：US20160373062A1

公开(公告)日：2016-12-22

申请号：US14742351

申请日：2015-06-17

Applicant: QUALCOMM Incorporated

Inventor： Ayush Mittal ,  Gireesh Rajendran ,  Rahul Karmaker

IPC: H03F1/02 ,  H03F3/21 ,  H03F3/19

CPC classification number: H03F1/0205 ,  H03F3/19 ,  H03F3/211 ,  H03F3/245 ,  H03F3/3022 ,  H03F3/45192 ,  H03F3/45219 ,  H03F3/45654 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2203/21106 ,  H03F2203/30015 ,  H03F2203/45008 ,  H03F2203/45134

Abstract: A class AB amplifier may include an input stage, a first folded cascode stage, a second folded cascode stage, and a class AB output stage. In some embodiments, the class AB output stage may provide differential output signals. The common-mode voltage of the differential output signals may be controlled via a correction signal coupled to a selected folded cascode stage. The correction signal may control the common-mode voltage of the differential output signals by altering bias currents within the selected folded cascode stage. The other cascode stage may include bias currents controlled by relatively fixed bias voltages.

Abstract translation: AB类放大器可以包括输入级，第一折叠共源共栅级，第二折叠共源共栅级和AB类输出级。 在一些实施例中，AB类输出级可以提供差分输出信号。 差分输出信号的共模电压可以通过耦合到所选择的折叠共源共栅级的校正信号来控制。 校正信号可以通过改变所选折叠共源共栅级内的偏置电流来控制差分输出信号的共模电压。 另一个共源共栅级可以包括由相对固定的偏置电压控制的偏置电流。

公开(公告)号：US20160226488A1

公开(公告)日：2016-08-04

申请号：US14608643

申请日：2015-01-29

Applicant: QUALCOMM Incorporated

Inventor： Alok Prakash Joshi ,  Gireesh Rajendran

IPC: H03K17/693

CPC classification number: H03K17/693 ,  H03K17/102 ,  H03K2217/0018

Abstract: Disclosed is circuitry for operating a switch which sees high voltage swings across its source, gate, drain, and bulk terminals. The circuitry generates one or more bias voltages in proportion to an input voltage swing. The one or more bias voltages may be used to bias the gate and bulk terminals to provide reliable and improved turn OFF performance in the switch.

Abstract translation: 公开了用于操作开关的电路，其在其源极，栅极，漏极和体积端子上观察到高电压摆幅。 该电路与输入电压摆幅成比例地产生一个或多个偏置电压。 可以使用一个或多个偏置电压来偏置栅极和体积端子，以在开关中提供可靠和改善的断开性能。

公开(公告)号：US20150194944A1

公开(公告)日：2015-07-09

申请号：US14151596

申请日：2014-01-09

Applicant: QUALCOMM INCORPORATED

Inventor： Alok Joshi ,  Gireesh Rajendran ,  Apu Sivadas

IPC: H03H7/38 ,  H03H7/42

CPC classification number: H03H7/38 ,  H03F1/565 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/111 ,  H03F2200/294 ,  H03H7/42 ,  H03H2007/386 ,  H04B1/0458 ,  H04B1/18

Abstract: Exemplary embodiments are related to wideband matching devices. A device may include a primary winding including a first plurality of inductors in series and a first switch coupled to the primary winding and configured to tune the primary winding to a frequency band of a plurality of frequency bands. The device may also include a secondary winding including a second plurality of inductors in series and a second switch coupled to the secondary winding and configured to tune the secondary winding to the frequency band.

Abstract translation: 示例性实施例涉及宽带匹配设备。 器件可以包括初级绕组，其包括串联的第一多个电感器，以及耦合到初级绕组并被配置为将初级绕组调谐到多个频带的频带的第一开关。 该装置还可以包括次级绕组，其包括串联的第二多个电感器，以及耦合到次级绕组并被配置为将次级绕组调谐到频带的第二开关。

公开(公告)号：US09893702B2

公开(公告)日：2018-02-13

申请号：US14810166

申请日：2015-07-27

Applicant: QUALCOMM Incorporated

Inventor： Gireesh Rajendran ,  Alok Prakash Joshi ,  Apu Sivadas

IPC: H03H7/01 ,  H01F38/14 ,  H03F3/191 ,  H03F3/195 ,  H03H11/52

CPC classification number: H03H7/0115 ,  H01F38/14 ,  H01F2038/146 ,  H03F3/191 ,  H03F3/195 ,  H03H7/0153 ,  H03H11/52 ,  H03H2007/013

Abstract: A notch filter including an inductor-capacitor tuning circuit is disclosed. The inductor-capacitor tuning circuit may determine a frequency response of the notch filter in accordance with an associated resonant frequency. In some exemplary embodiments, the inductor-capacitor circuit may include a differential inductor divided at a symmetry point and a variable capacitor coupled to the differential inductor at the symmetry point.

公开(公告)号：US09595919B2

公开(公告)日：2017-03-14

申请号：US14752608

申请日：2015-06-26

Applicant: QUALCOMM Incorporated

Inventor： Gireesh Rajendran ,  Alok Prakash Joshi ,  Ashish Lachhwani

IPC: H03D7/14 ,  H04B1/04 ,  H03H7/42

CPC classification number: H03D7/1425 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1483 ,  H03D2200/0019 ,  H03D2200/0023 ,  H03H7/42 ,  H04B1/04 ,  H04B2001/0491

Abstract: Apparatus includes: a mixer configured to mix local a oscillator signal with a baseband signal and output a radio frequency (RF) signal; a first load coupled to the mixer and tuned to an operating frequency; and a second load coupled to the mixer and tuned to a predetermined multiple of the operating frequency.

Abstract translation: 装置包括：混频器，其配置为将本地振荡器信号与基带信号混合并输出射频（RF）信号; 耦合到混频器并被调谐到工作频率的第一负载; 以及耦合到所述混频器并被调谐到所述工作频率的预定倍数的第二负载。

公开(公告)号：US09385901B2

公开(公告)日：2016-07-05

申请号：US14540900

申请日：2014-11-13

Applicant: QUALCOMM Incorporated

Inventor： Gireesh Rajendran ,  Gurkanwal Singh Sahota ,  Rakesh Kumar

IPC: H03F3/04 ,  H04L27/26 ,  H04L27/00 ,  H04L5/00 ,  H03F1/26 ,  H03F1/22 ,  H03F3/68 ,  H03F3/72 ,  H03F1/30 ,  H03F1/32

CPC classification number: H04L27/0002 ,  H03F1/223 ,  H03F1/26 ,  H03F1/301 ,  H03F1/3205 ,  H03F3/68 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/294 ,  H03F2200/492 ,  H03F2200/541 ,  H03F2203/7209 ,  H04B1/006 ,  H04L5/0042 ,  H04L27/2649

Abstract: A receiver front end architecture for intra band carrier aggregation is disclosed. In an exemplary embodiment, an apparatus includes a first transistor having a gate terminal to receive an input signal, drain terminal to output an amplified signal, and a source terminal connected to a signal ground by a source degeneration inductor. The apparatus also includes a second transistor having a source terminal connected to the drain terminal of the first transistor and a drain terminal connected to a first load. The apparatus also includes a third transistor having a gate terminal connected to the drain terminal of the first transistor, a drain terminal connected to a second load and a source terminal connected to a signal ground.

Abstract translation: 公开了用于带内载波聚合的接收机前端架构。 在示例性实施例中，一种装置包括：第一晶体管，其具有用于接收输入信号的栅极端子，用于输出放大信号的漏极端子以及由源极退化电感器连接到信号地的源极端子。 该装置还包括具有连接到第一晶体管的漏极端子的源极端子和连接到第一负载的漏极端子的第二晶体管。 该装置还包括具有连接到第一晶体管的漏极端的栅极端子的第三晶体管，连接到第二负载的漏极端子和连接到信号地的源极端子。