公开(公告)号：US10805143B2

公开(公告)日：2020-10-13

申请号：US16549646

申请日：2019-08-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huizhen Qian ,  Xun Luo

IPC: H04B1/04 ,  H04L27/36 ,  H04L25/02

Abstract: The present disclosure relates to polar phased-array transmitter and mobile terminals. One example mobile terminal includes a polar phased-array transmitter and an antenna array. The polar phased-array transmitter is configured to generate n amplitude signals and n phase signals, separately perform phase modulation and phase shifting on the n phase signals by using a local oscillator signal to obtain n phase modulation signals, and perform amplitude modulation and power amplification on the n phase modulation signals by using the amplitude signals to obtain n radio frequency signals. n is a natural number greater than 1. The antenna array is configured to obtain the n radio frequency signals from the polar phased-array transmitter, and transmit the n radio frequency signals.

公开(公告)号：US10742167B2

公开(公告)日：2020-08-11

申请号：US16563283

申请日：2019-09-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yiyang Shu ,  Huizhen Qian ,  Xun Luo

IPC: H03B5/02 ,  H03B5/12 ,  H03B27/00

Abstract: A dual-mode oscillator and a multi-phase oscillator includes a mode switching circuit to switch between two operating modes and obtain oscillation signals having two different bands. The dual-mode oscillator also includes two transformer-coupled oscillators with each having a step-up transformer. The step-up transformer multiplies a drain voltage swing of a first metal oxide semiconductor (MOS) transistor and then injects a voltage signal to a gate of a second MOS transistor to obtain a larger gate voltage swing without increasing a supply voltage of the oscillator. The dual-mode oscillators are coupled through multi-phase coupled circuits to form a Mobius loop.

公开(公告)号：US20200007081A1

公开(公告)日：2020-01-02

申请号：US16563283

申请日：2019-09-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yiyang Shu ,  Huizhen Qian ,  Xun Luo

IPC: H03B5/02 ,  H03B5/12

Abstract: A dual-mode oscillator and a multi-phase oscillator includes a mode switching circuit to switch between two operating modes and obtain oscillation signals having two different bands. The dual-mode oscillator also includes two transformer-coupled oscillators with each having a step-up transformer. The step-up transformer multiplies a drain voltage swing of a first metal oxide semiconductor (MOS) transistor and then injects a voltage signal to a gate of a second MOS transistor to obtain a larger gate voltage swing without increasing a supply voltage of the oscillator. The dual-mode oscillators are coupled through multi-phase coupled circuits to form a Mobius loop.

公开(公告)号：US10461390B2

公开(公告)日：2019-10-29

申请号：US15634226

申请日：2017-06-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jie Zhou ,  Huizhen Qian ,  Xun Luo

IPC: H01P5/12 ,  H01P1/18 ,  H01P5/08 ,  H01Q21/00 ,  H01P3/00 ,  H01P5/02 ,  H03H7/18 ,  H01Q3/34 ,  H01Q21/22

Abstract: The present invention relates to the field of communications technologies and discloses a phase shifter and a feed network. The phase shifter includes at least one phase shift component. The phase shift component includes a substrate, a microstrip coupling structure disposed on a first plane of the substrate, a microstrip transmission line connected to and coplanar with the microstrip coupling structure, and a microstrip/coplanar-waveguide coupling structure, where the microstrip/coplanar-waveguide coupling structure includes a microstrip connected to and coplanar with the microstrip transmission line, and a coplanar waveguide disposed opposite to the microstrip on the substrate and coupled with the microstrip. A phase shifter using a microstrip/coplanar-waveguide coupling structure has a small volume and costs low, thereby facilitating feed network design.

公开(公告)号：US20180131323A1

公开(公告)日：2018-05-10

申请号：US15714619

申请日：2017-09-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yiyang Shu ,  Huizhen Qian ,  Xun Luo

IPC: H03B5/02 ,  H03B5/12

CPC classification number: H03B5/02 ,  H03B5/1212 ,  H03B5/1218 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B5/1296 ,  H03B27/00 ,  H03B2200/0074 ,  H03B2200/009 ,  H03B2201/0266

Abstract: A dual-mode oscillator and a multi-phase oscillator includes a mode switching circuit to switch between two operating modes and obtain oscillation signals having two different bands. The dual-mode oscillator also includes two transformer-coupled oscillators and a step-up transformer in the transformer-coupled oscillators where the step-up transformer multiplies a drain voltage swing of a first MOS transistor and then injects a voltage signal to a gate of a second MOS transistor to obtain a larger gate voltage swing without increasing a supply voltage of the oscillator. The dual-mode oscillators are connected through multi-phase coupled circuits to form a Mobius loop.