公开(公告)号：US09312897B2

公开(公告)日：2016-04-12

申请号：US13664678

申请日：2012-10-31

Applicant: QUALCOMM Incorporated

Inventor： Gregory Steele ,  Yossi Tsfati ,  Haim M Weissman ,  Mazhareddin Taghivand

IPC: H04B1/10 ,  H03D3/00

CPC classification number: H04B1/1036 ,  H03D3/008 ,  H03D2200/0043 ,  H03D2200/0047 ,  H04B2001/1063

Abstract: A DC offset filter for wide band beamforming receivers is disclosed. In an exemplary embodiment, an apparatus includes a first mixer configured to down-convert an RF wideband beamformed signal to generate a first baseband wideband beamformed signal, the RF wideband beamformed signal having a beam pattern selected from a plurality of beam patterns, and a notch filter configured to remove DC offset from the first baseband wideband beamformed signal independent of the beam pattern.

Abstract translation: 公开了一种用于宽带波束成形接收机的DC偏移滤波器。 在示例性实施例中，一种装置包括：第一混频器，被配置为下变频RF宽带波束形成信号以产生第一基带宽带波束形成信号，所述RF宽带波束形成信号具有从多个波束图案中选择的波束图案， 滤波器被配置为从波束图案中独立于第一基带宽带波束形成的信号去除DC偏移。

公开(公告)号：US20140120851A1

公开(公告)日：2014-05-01

申请号：US13664678

申请日：2012-10-31

Applicant: QUALCOMM INCORPORATED

Inventor： Gregory Steele ,  Yossi Tsfati ,  Haim M Weissman ,  Mazhareddin Taghivand

IPC: H04B1/40

CPC classification number: H04B1/1036 ,  H03D3/008 ,  H03D2200/0043 ,  H03D2200/0047 ,  H04B2001/1063

Abstract: A DC offset filter for wide band beamforming receivers is disclosed. In an exemplary embodiment, an apparatus includes a first mixer configured to down-convert an RF wideband beamformed signal to generate a first baseband wideband beamformed signal, the RF wideband beamformed signal having a beam pattern selected from a plurality of beam patterns, and a notch filter configured to remove DC offset from the first baseband wideband beamformed signal independent of the beam pattern.

Abstract translation: 公开了一种用于宽带波束成形接收机的DC偏移滤波器。 在示例性实施例中，一种装置包括：第一混频器，被配置为下变频RF宽带波束形成信号以产生第一基带宽带波束形成信号，所述RF宽带波束形成信号具有从多个波束图案中选择的波束图案， 滤波器被配置为从波束图案中独立于第一基带宽带波束形成信号去除DC偏移。