CN112272924A - 一种发射机、本振校准电路及校准方法 - Google Patents

一种发射机、本振校准电路及校准方法 Download PDF

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Publication number
CN112272924A
CN112272924A CN201880094517.8A CN201880094517A CN112272924A CN 112272924 A CN112272924 A CN 112272924A CN 201880094517 A CN201880094517 A CN 201880094517A CN 112272924 A CN112272924 A CN 112272924A
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signal
resistor
buffer
local oscillator
voltage
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CN112272924B (zh
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俞小宝
梁建
朱年勇
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN202210919706.2A priority Critical patent/CN115441884A/zh
Priority to CN202210919529.8A priority patent/CN115425995A/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0475—Circuits with means for limiting noise, interference or distortion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0491—Circuits with frequency synthesizers, frequency converters or modulators

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)

Abstract

本申请实施例提供一种发射机、本振校准电路及校准方法，用于提升发射机的性能。发射机包括：基带信号通路，用于产生模拟基带信号；本振信号通路包括：第一缓冲器用于获取第一振荡信号，根据差分电压信号校准第一振荡信号的占空比，得到第二振荡信号；本振校准电路包括：第二缓冲器和分压式偏置电路，第二缓冲器用于根据自偏置电压产生静态点调节信号，利用静态点调节信号调节分压式偏置电路的电流，产生差分电压信号，第二缓冲器的静态工作点与第一缓冲器的静态工作点相匹配，差分电压信号对应的共模电压信号用于追踪静态点调节信号；分频电路用于分频第二振荡信号，得到本振信号；混频器，用于利用本振信号上转换模拟基带信号，生成射频信号。

Description

PCT国内申请，说明书已公开。

Claims (22)

  1. PCT国内申请，权利要求书已公开。
CN201880094517.8A 2018-06-12 2018-06-12 一种发射机、本振校准电路及校准方法 Active CN112272924B (zh)

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CN202210919706.2A CN115441884A (zh) 2018-06-12 2018-06-12 一种发射机、本振校准电路及校准方法
CN202210919529.8A CN115425995A (zh) 2018-06-12 2018-06-12 一种发射机、本振校准电路及校准方法

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PCT/CN2018/090904 WO2019237260A1 (zh) 2018-06-12 2018-06-12 一种发射机、本振校准电路及校准方法

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CN202210919529.8A Division CN115425995A (zh) 2018-06-12 2018-06-12 一种发射机、本振校准电路及校准方法

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW531966B (en) * 2002-05-20 2003-05-11 Mediatek Inc Phase lock loop with low static state phase error and calibration circuit
CN1784825A (zh) * 2003-05-07 2006-06-07 皇家飞利浦电子股份有限公司 低功耗的接收机前端
CN101162910A (zh) * 2006-10-10 2008-04-16 北京六合万通微电子技术有限公司 本振泄漏自动消除装置
CN201303346Y (zh) * 2008-11-24 2009-09-02 北京朗波芯微技术有限公司 本振缓冲器
US20100283665A1 (en) * 2009-05-05 2010-11-11 Imran Bashir Mitigation of RF Oscillator Pulling through Adjustable Phase Shifting
CN104698274A (zh) * 2013-12-10 2015-06-10 苏州普源精电科技有限公司 一种具有本振校准功能的频谱分析仪

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8976897B2 (en) * 2013-07-24 2015-03-10 Qualcomm Incorporated Suppression of spurious harmonics generated in TX driver amplifiers
CN105007044B (zh) * 2014-04-18 2017-08-11 清华大学 一种谐波抑制混频器
CN104052407B (zh) * 2014-05-22 2018-06-22 晨星半导体股份有限公司 一种抑制谐波信号的方法及装置
US9900030B2 (en) * 2016-04-13 2018-02-20 Futurewei Technologies, Inc. Transmitter harmonics calibration to improve transmit linearity
US10009050B2 (en) * 2016-05-26 2018-06-26 Mediatek Singapore Pte. Ltd. Quadrature transmitter, wireless communication unit, and method for spur suppression

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW531966B (en) * 2002-05-20 2003-05-11 Mediatek Inc Phase lock loop with low static state phase error and calibration circuit
CN1784825A (zh) * 2003-05-07 2006-06-07 皇家飞利浦电子股份有限公司 低功耗的接收机前端
CN101162910A (zh) * 2006-10-10 2008-04-16 北京六合万通微电子技术有限公司 本振泄漏自动消除装置
CN201303346Y (zh) * 2008-11-24 2009-09-02 北京朗波芯微技术有限公司 本振缓冲器
US20100283665A1 (en) * 2009-05-05 2010-11-11 Imran Bashir Mitigation of RF Oscillator Pulling through Adjustable Phase Shifting
CN104698274A (zh) * 2013-12-10 2015-06-10 苏州普源精电科技有限公司 一种具有本振校准功能的频谱分析仪

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Publication number Publication date
CN115425995A (zh) 2022-12-02
CN112272924B (zh) 2022-08-26
CN115441884A (zh) 2022-12-06
WO2019237260A1 (zh) 2019-12-19

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