公开(公告)号：US20160164555A1

公开(公告)日：2016-06-09

申请号：US15044171

申请日：2016-02-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Guolong Su ,  Arthur John Redfern

IPC: H04B1/10 ,  H04B17/336 ,  H04W72/04

CPC classification number: H04W72/0446 ,  H04B17/336

Abstract: A bandpass filter includes a plurality of parallel paths. Each path includes a first mixer, a low-pass filter, and a second mixer. The first mixer in each path receives the input signal and mixes the input signal with a periodic mixer sequence. The low-pass filter in each path is operable to filter an output of the associated first mixer. The second mixer in each path is coupled to receive an output of the associated low-pass filter and mixes said filter output with a periodic mixer sequence having a period that is divided into a plurality of time slots, wherein again the mixer value is constant during each time slot. A summer sums the outputs of the second mixers of each of the paths to generate an output of the bandpass filter.

Abstract translation: 带通滤波器包括多个平行路径。 每个路径包括第一混频器，低通滤波器和第二混频器。 每个路径中的第一个混频器接收输入信号，并将输入信号与周期性混频器序列混合。 每个路径中的低通滤波器可操作以对相关联的第一混频器的输出进行滤波。 每个路径中的第二混频器被耦合以接收相关联的低通滤波器的输出，并且将所述滤波器输出与具有被分成多个时隙的周期的周期性混频器序列混合，其中混频器值在 每个时间段 夏季对每个路径的第二混频器的输出求和，以产生带通滤波器的输出。

公开(公告)号：US09648618B2

公开(公告)日：2017-05-09

申请号：US15044171

申请日：2016-02-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Guolong Su ,  Arthur John Redfern

IPC: H04B1/10 ,  H04W72/04 ,  H04B17/336

CPC classification number: H04W72/0446 ,  H04B17/336

Abstract: A bandpass filter includes a plurality of parallel paths. Each path includes a first mixer, a low-pass filter, and a second mixer. The first mixer in each path receives the input signal and mixes the input signal with a periodic mixer sequence. The low-pass filter in each path is operable to filter an output of the associated first mixer. The second mixer in each path is coupled to receive an output of the associated low-pass filter and mixes said filter output with a periodic mixer sequence having a period that is divided into a plurality of time slots, wherein again the mixer value is constant during each time slot. A summer sums the outputs of the second mixers of each of the paths to generate an output of the bandpass filter.

公开(公告)号：US20160043756A1

公开(公告)日：2016-02-11

申请号：US14452777

申请日：2014-08-06

Applicant: Texas Instruments Incorporated

Inventor： Guolong Su ,  Arthur John Redfern

IPC: H04B1/10 ,  H04W72/04 ,  H04B17/336

CPC classification number: H04W72/0446 ,  H04B17/336

Abstract: A bandpass filter includes a plurality of parallel paths, each receiving the input signal to the bandpass filter. Each path includes a first mixer, a low-pass filter, and a second mixer. The first mixer in each path is coupled to receive the input signal and mixes the input signal with a periodic mixer sequence having a period that is divided into a plurality of time slots. The mixer value is constant during each time slot. The low-pass filter in each path is operable to filter an output of the associated first mixer. The second mixer in each path is coupled to receive an output of the associated low-pass filter and mixes said filter output with a periodic mixer sequence having a period that is divided into a plurality of time slots, wherein again the mixer value is constant during each time slot. A summer sums the outputs of the second mixers of each of the paths to generate an output of the bandpass filter.

Abstract translation: 带通滤波器包括多个并行路径，每个并行路径将输入信号接收到带通滤波器。 每个路径包括第一混频器，低通滤波器和第二混频器。 每个路径中的第一混频器被耦合以接收输入信号，并且将输入信号与具有被划分成多个时隙的周期的周期性混频器序列混合。 混频器值在每个时隙都是恒定的。 每个路径中的低通滤波器可操作以对相关联的第一混频器的输出进行滤波。 每个路径中的第二混频器被耦合以接收相关联的低通滤波器的输出，并且将所述滤波器输出与具有被分成多个时隙的周期的周期性混频器序列混合，其中混频器值在 每个时间段 夏季对每个路径的第二混频器的输出求和，以产生带通滤波器的输出。

公开(公告)号：US09294138B2

公开(公告)日：2016-03-22

申请号：US14452777

申请日：2014-08-06

Applicant: Texas Instruments Incorporated

Inventor： Guolong Su ,  Arthur John Redfern

IPC: H04B1/10 ,  H04B17/336 ,  H04W72/04

CPC classification number: H04W72/0446 ,  H04B17/336

Abstract: A bandpass filter includes a plurality of parallel paths, each receiving the input signal to the bandpass filter. Each path includes a first mixer, a low-pass filter, and a second mixer. The first mixer in each path is coupled to receive the input signal and mixes the input signal with a periodic mixer sequence having a period that is divided into a plurality of time slots. The mixer value is constant during each time slot. The low-pass filter in each path is operable to filter an output of the associated first mixer. The second mixer in each path is coupled to receive an output of the associated low-pass filter and mixes said filter output with a periodic mixer sequence having a period that is divided into a plurality of time slots, wherein again the mixer value is constant during each time slot. A summer sums the outputs of the second mixers of each of the paths to generate an output of the bandpass filter.

Abstract translation: 带通滤波器包括多个并行路径，每个并行路径将输入信号接收到带通滤波器。 每个路径包括第一混频器，低通滤波器和第二混频器。 每个路径中的第一混频器被耦合以接收输入信号，并且将输入信号与具有被划分成多个时隙的周期的周期性混频器序列混合。 混频器值在每个时隙都是恒定的。 每个路径中的低通滤波器可操作以对相关联的第一混频器的输出进行滤波。 每个路径中的第二混频器被耦合以接收相关联的低通滤波器的输出，并且将所述滤波器输出与具有被分成多个时隙的周期的周期性混频器序列混合，其中混频器值在 每个时间段 夏季对每个路径的第二混频器的输出求和，以产生带通滤波器的输出。