公开(公告)号：US20160112146A1

公开(公告)日：2016-04-21

申请号：US14516546

申请日：2014-10-16

Applicant: QUALCOMM Incorporated

Inventor： Wing Fat Andy LAU ,  Jorge Andres GARCIA ,  David Zixiang YANG ,  Ahmed Abdel Monem YOUSSEF

IPC: H04B15/06

CPC classification number: H04B15/06 ,  H03D7/1458 ,  H03D7/1483 ,  H03F2200/165 ,  H03F2200/222 ,  H03F2200/225 ,  H03F2200/451 ,  H03F2200/534 ,  H03F2200/541 ,  H04B2215/064

Abstract: An apparatus for reducing a harmonic response in an electronic circuit is provided. The apparatus includes an RF input configured to provide a first signal operating at a radio frequency. The apparatus includes a local oscillator configured to produce a second signal operating at a local oscillator (LO) frequency. The apparatus includes a switching mixer configured to mix the first and second signals. The apparatus includes a notch filter comprising an inductor and a capacitor connected in parallel. The notch filter is directly coupled to an input of the switching mixer in series. The notch filter is tuned such that its resonant frequency is a harmonic of the LO frequency signal. In an aspect, the apparatus also includes a transformer configured to provide the first signal. In an aspect the apparatus also includes a second notch filter comprising a second inductor and a second capacitor connected in parallel.

Abstract translation: 提供一种用于减少电子电路中的谐波响应的装置。 该装置包括被配置为提供以射频工作的第一信号的RF输入。 该装置包括配置成产生以本地振荡器（LO）频率工作的第二信号的本地振荡器。 该装置包括配置成混合第一和第二信号的切换混合器。 该装置包括陷波滤波器，该陷波滤波器包括并联连接的电感器和电容器。 陷波滤波器与串联的开关混频器的输入端直接耦合。 调谐陷波滤波器使其谐振频率为LO频率信号的谐波。 在一方面，该装置还包括被配置为提供第一信号的变压器。 在一方面，该装置还包括第二陷波滤波器，其包括并联连接的第二电感器和第二电容器。

公开(公告)号：US20160373075A1

公开(公告)日：2016-12-22

申请号：US15250642

申请日：2016-08-29

Applicant: QUALCOMM Incorporated

Inventor： Chuan WANG ,  Dongling PAN ,  Wing Fat Andy LAU ,  Jorge Andres GARCIA ,  David Zixiang YANG

IPC: H03F3/195 ,  H03F3/21 ,  H04B1/00 ,  H03F1/56

CPC classification number: H03F3/195 ,  H03F1/0205 ,  H03F1/26 ,  H03F1/56 ,  H03F3/19 ,  H03F3/211 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2200/541 ,  H03F2203/21109 ,  H04B1/005

Abstract: An apparatus including: a plurality of amplifiers having a plurality of output ports, respectively, the plurality of amplifiers configured to amplify radio frequency (RF) signals received from at least one antenna; a plurality of demodulators configured to receive the amplified RF signals at a plurality of input ports, respectively, the plurality of demodulators configured to downconvert the received RF signals; and a plurality of switches configured to couple selected output ports of the plurality of amplifiers to selected input ports of the plurality of demodulators, wherein each switch of the plurality of switches is configured such that at least one of the plurality of output ports of the plurality of amplifiers is selectively coupled to any of multiple input ports of the plurality of input ports of the plurality of demodulators.

Abstract translation: 一种装置，包括：分别具有多个输出端口的多个放大器，所述多个放大器被配置为放大从至少一个天线接收的射频（RF）信号; 多个解调器，被配置为分别在多个输入端口处接收放大的RF信号，所述多个解调器被配置为对所接收的RF信号进行下变频; 以及多个开关，其被配置为将所述多个放大器的选择的输出端口耦合到所述多个解调器中的选择的输入端口，其中所述多个开关中的每个开关被配置为使得所述多个输出端口中的至少一个输出端口 放大器选择性地耦合到多个解调器的多个输入端口的多个输入端口中的任一个。