CN111903054A - 单端转差分放大器和射频接收机 - Google Patents

单端转差分放大器和射频接收机 Download PDF

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Publication number
CN111903054A
CN111903054A CN201880091785.4A CN201880091785A CN111903054A CN 111903054 A CN111903054 A CN 111903054A CN 201880091785 A CN201880091785 A CN 201880091785A CN 111903054 A CN111903054 A CN 111903054A
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China
Prior art keywords
inverting amplifier
coupled
amplifier
ended
tube
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CN201880091785.4A
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CN111903054B (zh
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应文荣
特瑞·麦凯恩
威廉姆·罗克内尔
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H03F3/193—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/26—Push-pull amplifiers; Phase-splitters therefor
    • H03F3/265—Push-pull amplifiers; Phase-splitters therefor with field-effect transistors only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
    • H03F1/22—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of cascode coupling, i.e. earthed cathode or emitter stage followed by earthed grid or base stage respectively
    • H03F1/223—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of cascode coupling, i.e. earthed cathode or emitter stage followed by earthed grid or base stage respectively with MOSFET's
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/294—Indexing scheme relating to amplifiers the amplifier being a low noise amplifier [LNA]
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier

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

Abstract

本申请公开了一种单端转差分放大器和射频接收机。单端转差分放大器包括：第一反相放大器、第二反相放大器和第三反相放大器；第一反相放大器的输入端和第二反相放大器的输入端均与单端转差分放大器的输入端耦合，第一反相放大器的输出端与第三反相放大器的输入端耦合，第二反相放大器的输出端与单端转差分放大器的第一输出端耦合，第三反相放大器的输出端与单端转差分放大器的第二输出端耦合，第一反相放大器的输入端与第一反相放大器的输出端之间耦合有阻抗元件。本申请中的单端转差分放大器的面积较小，且频率范围较大，可以实现宽带匹配，从而仅使用较少数量的单端转差分放大器就可以覆盖宽频率范围，进而可以减小射频接收机的面积。

Description

PCT国内申请，说明书已公开。

Claims (15)

  1. PCT国内申请，权利要求书已公开。
CN201880091785.4A 2018-06-30 2018-06-30 单端转差分放大器和射频接收机 Active CN111903054B (zh)

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PCT/CN2018/093885 WO2020000475A1 (zh) 2018-06-30 2018-06-30 单端转差分放大器和射频接收机

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CN111903054A true CN111903054A (zh) 2020-11-06
CN111903054B CN111903054B (zh) 2022-07-12

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US (1) US11606069B2 (zh)
EP (1) EP3790189A4 (zh)
CN (1) CN111903054B (zh)
WO (1) WO2020000475A1 (zh)

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CN101132168A (zh) * 2006-08-25 2008-02-27 王悦 一种前置差分放大器输入范围扩展方法及前置差分放大器
CN101777877A (zh) * 2010-01-05 2010-07-14 南京广嘉微电子有限公司 单端输入差分输出的宽带射频低噪声放大器
CN102946230A (zh) * 2012-10-31 2013-02-27 中国科学技术大学 一种超宽带单端输入差分输出低噪声放大器
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CN107493078A (zh) * 2016-06-13 2017-12-19 英特尔Ip公司 放大电路、低噪声放大器、用于进行放大的装置和方法

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CN101777877A (zh) * 2010-01-05 2010-07-14 南京广嘉微电子有限公司 单端输入差分输出的宽带射频低噪声放大器
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CN107493078A (zh) * 2016-06-13 2017-12-19 英特尔Ip公司 放大电路、低噪声放大器、用于进行放大的装置和方法

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Also Published As

Publication number Publication date
EP3790189A1 (en) 2021-03-10
CN111903054B (zh) 2022-07-12
US20210075379A1 (en) 2021-03-11
US11606069B2 (en) 2023-03-14
WO2020000475A1 (zh) 2020-01-02
EP3790189A4 (en) 2021-05-05

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