CN116114224A - 发射机系统及电子设备 - Google Patents

发射机系统及电子设备 Download PDF

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Publication number
CN116114224A
CN116114224A CN202080103989.2A CN202080103989A CN116114224A CN 116114224 A CN116114224 A CN 116114224A CN 202080103989 A CN202080103989 A CN 202080103989A CN 116114224 A CN116114224 A CN 116114224A
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China
Prior art keywords
common mode
output end
mode rejection
coupled
feedback
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Pending
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CN202080103989.2A
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English (en)
Inventor
覃林
龚涛
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of CN116114224A publication Critical patent/CN116114224A/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems

Abstract

本申请提供了一种发射机系统及电子设备，涉及发射机领域，能够改善因射频反馈信号泄露发射机系统的性能下降的问题。该发射机系统包括：反馈通道和第一发射通道；第一发射通道包括第一发射混频器，第一发射混频器用于将接收的基带发射信号转换为射频发射信号；射频发射信号在经过第一功率放大器放大后输出至第一耦合器进行耦合后通过天线发射出去；反馈通道接收从第一耦合器耦合的射频反馈信号；反馈通道包括反馈混频器，反馈混频器将射频反馈信号转换为基带反馈信号；反馈混频器通过第一本振通路与第一本地振荡器耦接；第一本振通路用于接收第一本地振荡器的差分本地振荡器信号，并转换为具有共模抑制特性的同相正交信号后输出给反馈混频器。

Description

PCT国内申请，说明书已公开。

Claims (13)

  1. PCT国内申请，权利要求书已公开。
CN202080103989.2A 2020-08-13 2020-08-13 发射机系统及电子设备 Pending CN116114224A (zh)

Applications Claiming Priority (1)

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PCT/CN2020/108946 WO2022032579A1 (zh) 2020-08-13 2020-08-13 发射机系统及电子设备

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CN116114224A true CN116114224A (zh) 2023-05-12

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CN202080103989.2A Pending CN116114224A (zh) 2020-08-13 2020-08-13 发射机系统及电子设备

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CN (1) CN116114224A (zh)
WO (1) WO2022032579A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115296689B (zh) * 2022-08-08 2023-11-03 慷智集成电路(上海)有限公司 全双工发射接收电路、串行电路芯片、电子设备及车辆

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100721171B1 (ko) * 2006-07-20 2007-05-23 삼성전기주식회사 주파수 변환회로
US8452246B2 (en) * 2011-04-07 2013-05-28 Intel Mobile Communications GmbH Antenna tuner in combination with modified feedback receiver for improved antenna matching
CN202261371U (zh) * 2011-08-15 2012-05-30 京信通信系统（中国）有限公司 一种混模射频拉远系统
CN102291347B (zh) * 2011-09-02 2014-10-29 大唐移动通信设备有限公司 一种基于多频段频谱的dpd处理方法和设备
US8773211B2 (en) * 2011-11-25 2014-07-08 Intel Mobile Communications GmbH Common mode rejection circuit
CN102710268B (zh) * 2012-05-31 2015-03-25 澜起科技（上海）有限公司 低中频接收机
US9787415B2 (en) * 2013-03-14 2017-10-10 Analog Devices, Inc. Transmitter LO leakage calibration scheme using loopback circuitry
US10057093B2 (en) * 2016-06-29 2018-08-21 International Business Machines Corporation Using common mode local oscillator termination in single-ended commutating circuits for conversion gain improvement

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WO2022032579A1 (zh) 2022-02-17

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