公开(公告)号：US20240178795A1

公开(公告)日：2024-05-30

申请号：US18060295

申请日：2022-11-30

申请人： Qualcomm Incorporated

发明人： Mohamed Abouzied ,  Chuan Wang ,  Anosh Davierwalla ,  Muhammad Hassan ,  Vinod Panikkath ,  Li Liu

IPC分类号： H03D7/14 ,  H04B17/21

CPC分类号： H03D7/1491 ,  H04B17/21

摘要： An apparatus is disclosed for oscillator feedthrough calibration, such as a component arrangement that can be calibrated to account for signal leakage from an oscillator coupled to a mixer circuit. In example aspects, the apparatus includes a mixer circuit having a first stage, a second stage, and tuning circuitry. The first stage includes at least one transistor coupled between a mixer input and a mixer output. The second stage includes one or more transistors coupled between the at least one transistor of the first stage and the mixer output. The one or more transistors are also coupled between a local oscillator signal input and the mixer output. The tuning circuitry includes at least one current source coupled to the at least one transistor of the first stage.

公开(公告)号：US11736150B2

公开(公告)日：2023-08-22

申请号：US17485364

申请日：2021-09-25

申请人： QUALCOMM Incorporated

发明人： Chuan Wang ,  Maziar Hedayati ,  Bhushan Shanti Asuri ,  Muhammad Hassan ,  Chinmaya Mishra ,  Anosh Davierwalla

IPC分类号： H04B5/00 ,  H01Q3/36 ,  H03H7/20

CPC分类号： H04B5/0081 ,  H01Q3/36 ,  H03H7/20

摘要： Aspects of the present relate to reflection type phase shifters for radio frequency (RF) wireless devices. Reflection type phase structures in accordance with aspects described herein can improve device performance with compact configurations, such as where magnetic and capacitive coupling is integrated into a device design to integrate interactions between elements for improved phase shifting performance in a compact design with wideband performance.