WO2005078921A3 - Radio frequency low noise amplifier with automatic gain control - Google Patents

Radio frequency low noise amplifier with automatic gain control Download PDF

Info

Publication number
WO2005078921A3
WO2005078921A3 PCT/US2005/002665 US2005002665W WO2005078921A3 WO 2005078921 A3 WO2005078921 A3 WO 2005078921A3 US 2005002665 W US2005002665 W US 2005002665W WO 2005078921 A3 WO2005078921 A3 WO 2005078921A3
Authority
WO
WIPO (PCT)
Prior art keywords
low noise
noise amplifier
terminal
radio frequency
gain control
Prior art date
Application number
PCT/US2005/002665
Other languages
French (fr)
Other versions
WO2005078921A8 (en
WO2005078921A2 (en
Inventor
Andrew W Krone
Original Assignee
Silicon Lab Inc
Andrew W Krone
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Silicon Lab Inc, Andrew W Krone filed Critical Silicon Lab Inc
Priority to DE602005017014T priority Critical patent/DE602005017014D1/en
Priority to EP05712201A priority patent/EP1719243B1/en
Priority to CN2005800046220A priority patent/CN1918790B/en
Publication of WO2005078921A2 publication Critical patent/WO2005078921A2/en
Publication of WO2005078921A3 publication Critical patent/WO2005078921A3/en
Publication of WO2005078921A8 publication Critical patent/WO2005078921A8/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier
    • H03G1/0023—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier in emitter-coupled or cascode amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • 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
    • 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
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/001—Volume compression or expansion in amplifiers without controlling loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/06—A balun, i.e. balanced to or from unbalanced converter, being present at the input of an amplifier
    • 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
    • H03F2200/372—Noise reduction and elimination in amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45024—Indexing scheme relating to differential amplifiers the differential amplifier amplifying transistors are cascode coupled transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45464—Indexing scheme relating to differential amplifiers the CSC comprising one or more coils
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45638—Indexing scheme relating to differential amplifiers the LC comprising one or more coils

Abstract

A low noise amplifier (500) includes a first transconductance device (326) having a control electrode for receiving a first input signal, and a first current electrode; a first load device (322) having a first terminal coupled to a first power supply voltage terminal and a second terminal coupled to the first current electrode of the first transconductance device (326) and forming a first output voltage signal; a second transconductance device (336) having a control electrode for receiving a second input signal, and a second current electrode; a second load device (332) having a first terminal coupled to the first power supply voltage terminal and a second terminal coupled to the first current electrode of the second transconductance device (336) and forming a second output voltage signal; and an attenuation device (340) coupled between the first current electrodes of the first (326) and second (336) transconductance devices and having a control input terminal for receiving a control voltage thereon.
PCT/US2005/002665 2004-02-11 2005-02-02 Radio frequency low noise amplifier with automatic gain control WO2005078921A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE602005017014T DE602005017014D1 (en) 2004-02-11 2005-02-02 RAZOR HIGH FREQUENCY AMPLIFIER WITH AUTOMATIC GAIN CONTROL
EP05712201A EP1719243B1 (en) 2004-02-11 2005-02-02 Radio frequency low noise amplifier with automatic gain control
CN2005800046220A CN1918790B (en) 2004-02-11 2005-02-02 Radio frequency low noise amplifier with automatic gain control

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/779,100 2004-02-11
US10/779,100 US7081796B2 (en) 2003-09-15 2004-02-11 Radio frequency low noise amplifier with automatic gain control

Publications (3)

Publication Number Publication Date
WO2005078921A2 WO2005078921A2 (en) 2005-08-25
WO2005078921A3 true WO2005078921A3 (en) 2006-04-27
WO2005078921A8 WO2005078921A8 (en) 2006-08-24

Family

ID=34860871

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/002665 WO2005078921A2 (en) 2004-02-11 2005-02-02 Radio frequency low noise amplifier with automatic gain control

Country Status (7)

Country Link
US (1) US7081796B2 (en)
EP (1) EP1719243B1 (en)
KR (1) KR20060122915A (en)
CN (1) CN1918790B (en)
DE (1) DE602005017014D1 (en)
TW (1) TW200603534A (en)
WO (1) WO2005078921A2 (en)

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Also Published As

Publication number Publication date
WO2005078921A8 (en) 2006-08-24
US20050057305A1 (en) 2005-03-17
EP1719243B1 (en) 2009-10-07
US7081796B2 (en) 2006-07-25
CN1918790A (en) 2007-02-21
KR20060122915A (en) 2006-11-30
EP1719243A2 (en) 2006-11-08
DE602005017014D1 (en) 2009-11-19
CN1918790B (en) 2011-11-09
TW200603534A (en) 2006-01-16
WO2005078921A2 (en) 2005-08-25

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