公开(公告)号：US20150162895A1

公开(公告)日：2015-06-11

申请号：US14103645

申请日：2013-12-11

Applicant: QUALCOMM Incorporated

Inventor： Gireesh Rajendran ,  Rakesh Kumar ,  Vinod Venugopal Panikkath ,  Ayush Mittal ,  Alok Joshi

IPC: H03H11/12 ,  H02M11/00 ,  G05F1/445

CPC classification number: H03H11/1213 ,  G05F1/445 ,  H02M11/00 ,  H03H11/045 ,  H03H2011/0483

Abstract: An area efficient baseband filter is disclosed. In an exemplary embodiment, an apparatus includes a current to voltage (I-V) filter configured to receive an input current signal at an input port and generate a filtered output voltage signal at an output port based on a feedback transconductance. The input current signal comprises an input DC current in addition to a signal current. The apparatus also includes a feedback circuit connected between the output port and the input port, the feedback circuit having at least one transistor configured to couple the input DC current to a signal ground and to provide the feedback transconductance for the I-V filter.

Abstract translation: 公开了一种区域有效的基带滤波器。 在一个示例性实施例中，一种装置包括电流 - 电压（I-V）滤波器，其被配置为在输入端口处接收输入电流信号，并且基于反馈跨导在输出端口处生成经滤波的输出电压信号。 除了信号电流之外，输入电流信号包括输入DC电流。 该装置还包括连接在输出端口和输入端口之间的反馈电路，反馈电路具有至少一个晶体管，其被配置为将输入的DC电流耦合到信号地，并为I-V滤波器提供反馈跨导。

公开(公告)号：US09160309B2

公开(公告)日：2015-10-13

申请号：US14103645

申请日：2013-12-11

Applicant: QUALCOMM Incorporated

Inventor： Gireesh Rajendran ,  Rakesh Kumar ,  Vinod Venugopal Panikkath ,  Ayush Mittal ,  Alok Joshi

IPC: H03B1/04 ,  H03H11/12 ,  G05F1/445 ,  H02M11/00 ,  H03H11/04

CPC classification number: H03H11/1213 ,  G05F1/445 ,  H02M11/00 ,  H03H11/045 ,  H03H2011/0483

Abstract: An area efficient baseband filter is disclosed. In an exemplary embodiment, an apparatus includes a current to voltage (I-V) filter configured to receive an input current signal at an input port and generate a filtered output voltage signal at an output port based on a feedback transconductance. The input current signal comprises an input DC current in addition to a signal current. The apparatus also includes a feedback circuit connected between the output port and the input port, the feedback circuit having at least one transistor configured to couple the input DC current to a signal ground and to provide the feedback transconductance for the I-V filter.

Abstract translation: 公开了一种区域有效的基带滤波器。 在一个示例性实施例中，一种装置包括电流 - 电压（I-V）滤波器，其被配置为在输入端口处接收输入电流信号，并且基于反馈跨导在输出端口处生成经滤波的输出电压信号。 除了信号电流之外，输入电流信号包括输入DC电流。 该装置还包括连接在输出端口和输入端口之间的反馈电路，反馈电路具有至少一个晶体管，其被配置为将输入的DC电流耦合到信号地，并为I-V滤波器提供反馈跨导。

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。