[go: up one dir, main page]

AU2001269743A1 - Gilbert cell multiplier in a quadrature modulator - Google Patents

Gilbert cell multiplier in a quadrature modulator

Info

Publication number
AU2001269743A1
AU2001269743A1 AU2001269743A AU6974301A AU2001269743A1 AU 2001269743 A1 AU2001269743 A1 AU 2001269743A1 AU 2001269743 A AU2001269743 A AU 2001269743A AU 6974301 A AU6974301 A AU 6974301A AU 2001269743 A1 AU2001269743 A1 AU 2001269743A1
Authority
AU
Australia
Prior art keywords
coupled
emitter
current
transistor pairs
driver circuit
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2001269743A
Inventor
Paul Wilkinson Dent
Aristotele Hadjibchristos
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ericsson Inc
Original Assignee
Ericsson Inc
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 Ericsson Inc filed Critical Ericsson Inc
Publication of AU2001269743A1 publication Critical patent/AU2001269743A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
    • H03C1/54—Balanced modulators, e.g. bridge type, ring type or double balanced type
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
    • H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
    • 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
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H03D7/1441—Balanced arrangements with transistors using field-effect transistors
    • 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
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H03D7/1458—Double balanced arrangements, i.e. where both input signals are differential
    • 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
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H03D7/1491—Arrangements to linearise a transconductance stage of a mixer arrangement
    • 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
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0001—Circuit elements of demodulators
    • H03D2200/0033—Current mirrors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0043—Bias and operating point

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Amplitude Modulation (AREA)
  • Amplifiers (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Quadrature modulators include a quadrature splitter and a pair of Gilbert Multiplier Cells coupled to the quadrature splitter, each of which is biased in Class-B. The quiescent current bias in the Gilbert Multiplier Cells may be substantially zero. Each of the Gilbert Multiplier Cells may include a pair of cross-coupled, emitter-coupled transistor pairs and a driver circuit that is coupled to at least one of the emitter-coupled transistor pairs and that is biased in Class-B. The driver circuit may include at least one current mirror circuit that is coupled to at least one of the emitter-coupled transistor pairs. The driver circuit also may include at least one current source that selectively applies current to at least one of the emitter-coupled transistor pairs, more specifically by selectively applying current to the at least one current mirror circuit.
AU2001269743A 2000-06-22 2001-06-04 Gilbert cell multiplier in a quadrature modulator Abandoned AU2001269743A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/602,385 US6768391B1 (en) 2000-06-22 2000-06-22 Class-B biased gilbert cells and quadrature modulators
US09/602,385 2000-06-22
PCT/US2001/018077 WO2001099270A2 (en) 2000-06-22 2001-06-04 Gilbert cell multiplier in a quadrature modulator

Publications (1)

Publication Number Publication Date
AU2001269743A1 true AU2001269743A1 (en) 2002-01-02

Family

ID=24411138

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001269743A Abandoned AU2001269743A1 (en) 2000-06-22 2001-06-04 Gilbert cell multiplier in a quadrature modulator

Country Status (7)

Country Link
US (1) US6768391B1 (en)
EP (1) EP1374386B1 (en)
KR (1) KR100817491B1 (en)
AT (1) ATE467262T1 (en)
AU (1) AU2001269743A1 (en)
DE (1) DE60142081D1 (en)
WO (1) WO2001099270A2 (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7015755B2 (en) * 2001-08-31 2006-03-21 Nokia Corporation Stacked modulator and automatic gain control amplifier
US20040196083A1 (en) * 2003-04-02 2004-10-07 Dunsmore Joel P. System and method for generating balanced signals with arbitrary amplitude and phase control using modulation
US7405685B2 (en) * 2005-07-11 2008-07-29 Texas Instruments Incorporated Negative contributive offset compensation in a transmit buffer utilizing inverse clocking
WO2007102100A1 (en) * 2006-03-06 2007-09-13 Koninklijke Philips Electronics N.V. Signal processor comprising a frequency converter
US7616941B2 (en) * 2007-02-26 2009-11-10 Broadcom Corporation Method and system for improving efficiency over power control for linear and class AB power amplifiers
KR101032738B1 (en) * 2009-04-15 2011-05-06 레이디오펄스 주식회사 Wireless transmitter with low pass filter using current mirror
US7902937B2 (en) * 2009-08-03 2011-03-08 Telefonaktiebolaget Lm Ericsson (Publ) Positive coefficient weighted quadrature modulation method and apparatus
US8781411B2 (en) * 2012-01-18 2014-07-15 Qualcomm Incorporated Baseband filter and upconverter with configurable efficiency for wireless transmitters
US8890634B2 (en) * 2012-10-26 2014-11-18 Mstar Semiconductor, Inc. Multiplexed configurable sigma delta modulators for noise shaping in a 25-percent duty cycle digital transmitter
JP2016167781A (en) * 2015-03-10 2016-09-15 富士通株式会社 Wireless communication apparatus and wireless communication apparatus control method
US10261179B2 (en) 2016-04-07 2019-04-16 Uhnder, Inc. Software defined automotive radar
US9689967B1 (en) 2016-04-07 2017-06-27 Uhnder, Inc. Adaptive transmission and interference cancellation for MIMO radar
US9846228B2 (en) 2016-04-07 2017-12-19 Uhnder, Inc. Software defined automotive radar systems
US9599702B1 (en) 2016-04-25 2017-03-21 Uhnder, Inc. On-demand multi-scan micro doppler for vehicle
US9791551B1 (en) 2016-04-25 2017-10-17 Uhnder, Inc. Vehicular radar system with self-interference cancellation
US9806914B1 (en) 2016-04-25 2017-10-31 Uhnder, Inc. Successive signal interference mitigation
US9772397B1 (en) 2016-04-25 2017-09-26 Uhnder, Inc. PMCW-PMCW interference mitigation
WO2017187304A2 (en) 2016-04-25 2017-11-02 Uhnder, Inc. Digital frequency modulated continuous wave radar using handcrafted constant envelope modulation
WO2017187306A1 (en) 2016-04-25 2017-11-02 Uhnder, Inc. Adaptive filtering for fmcw interference mitigation in pmcw radar systems
US9575160B1 (en) 2016-04-25 2017-02-21 Uhnder, Inc. Vehicular radar sensing system utilizing high rate true random number generator
US10573959B2 (en) 2016-04-25 2020-02-25 Uhnder, Inc. Vehicle radar system using shaped antenna patterns
WO2017187331A1 (en) 2016-04-25 2017-11-02 Uhnder, Inc. Vehicle radar system with a shared radar and communication system
US9753121B1 (en) 2016-06-20 2017-09-05 Uhnder, Inc. Power control for improved near-far performance of radar systems
WO2018051288A1 (en) 2016-09-16 2018-03-22 Uhnder, Inc. Virtual radar configuration for 2d array
WO2018146530A1 (en) 2017-02-10 2018-08-16 Uhnder, Inc. Reduced complexity fft-based correlation for automotive radar
US11454697B2 (en) 2017-02-10 2022-09-27 Uhnder, Inc. Increasing performance of a receive pipeline of a radar with memory optimization
WO2018146632A1 (en) 2017-02-10 2018-08-16 Uhnder, Inc. Radar data buffering
US11105890B2 (en) 2017-12-14 2021-08-31 Uhnder, Inc. Frequency modulated signal cancellation in variable power mode for radar applications
US12386029B2 (en) 2018-01-29 2025-08-12 Robert Bosch Gmbh Millimeter wave automotive radar systems
US11474225B2 (en) 2018-11-09 2022-10-18 Uhnder, Inc. Pulse digital mimo radar system
WO2020183392A1 (en) 2019-03-12 2020-09-17 Uhnder, Inc. Method and apparatus for mitigation of low frequency noise in radar systems
US10778148B1 (en) 2019-12-13 2020-09-15 Raytheon Company Gain and sensitivity in a Gilbert switch stage
US12078748B2 (en) 2020-01-13 2024-09-03 Uhnder, Inc. Method and system for intefrence management for digital radars
WO2023100108A1 (en) 2021-12-02 2023-06-08 Uhnder, Inc. Radar system with enhanced processing for increased contrast ratio, improved angular separability and elimination of ghost targets

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156283A (en) 1972-05-30 1979-05-22 Tektronix, Inc. Multiplier circuit
DE3134936A1 (en) 1981-09-03 1983-03-17 Siemens AG, 1000 Berlin und 8000 München INTEGRATED SIGNAL PROCESSING SEMICONDUCTOR CIRCUIT
US5530722A (en) 1992-10-27 1996-06-25 Ericsson Ge Mobile Communications Inc. Quadrature modulator with integrated distributed RC filters
JPH07131253A (en) 1993-11-05 1995-05-19 Fujitsu Ltd High frequency multiplication circuit
US5574755A (en) 1994-01-25 1996-11-12 Philips Electronics North America Corporation I/Q quadraphase modulator circuit
GB2291753B (en) 1994-07-16 1998-09-16 Peter Fred Blomley Signal mixer
US5589791A (en) * 1995-06-09 1996-12-31 Analog Devices, Inc. Variable gain mixer having improved linearity and lower switching noise
JP2914258B2 (en) 1995-11-10 1999-06-28 日本電気株式会社 Double balance mixer circuit
US5884154A (en) * 1996-06-26 1999-03-16 Raytheon Company Low noise mixer circuit having passive inductor elements
US5920810A (en) 1997-05-05 1999-07-06 Motorola, Inc. Multiplier and method for mixing signals
US5847623A (en) 1997-09-08 1998-12-08 Ericsson Inc. Low noise Gilbert Multiplier Cells and quadrature modulators
US6037825A (en) * 1997-11-04 2000-03-14 Nortel Networks Corporation Tree mixer operable in class A, B or AB

Also Published As

Publication number Publication date
US6768391B1 (en) 2004-07-27
WO2001099270A3 (en) 2003-10-16
EP1374386B1 (en) 2010-05-05
WO2001099270A2 (en) 2001-12-27
EP1374386A2 (en) 2004-01-02
KR20030016302A (en) 2003-02-26
DE60142081D1 (en) 2010-06-17
KR100817491B1 (en) 2008-03-27
ATE467262T1 (en) 2010-05-15

Similar Documents

Publication Publication Date Title
AU2001269743A1 (en) Gilbert cell multiplier in a quadrature modulator
TW200507553A (en) Quadra-polar modulator
WO2000041371A3 (en) Power i-q modulation systems and methods using predistortion circuit
CA2220240A1 (en) Configurable chirp mach-zehnder optical modulator
US6384954B1 (en) Optical modulator
ATE435470T1 (en) NEAR FIELD RF COMMUNICATION
WO2004059848A3 (en) Modulation of a digital input signal using a digital signal modulator and signal splitting
AU2002306770A1 (en) Even-order non-linearity correction feedback for gilbert style mixers
KR850003640A (en) Oscillator circuit
TW200511734A (en) Digital-to-analog converter circuits including independently sized reference current source transistors and methods of operating same
CA2009476A1 (en) Differential amplifier using voltage level shifting to achieve rail-to-rail input capability at very low power supply voltage
WO2007124362A3 (en) Gate leakage insensitive current mirror circuit
ATE453960T1 (en) VERSATILE BASEBAND POWER INPUT SIGNAL SPLITTER
ATE235758T1 (en) ANALOG LOW VOLTAGE INPUT CIRCUIT
EP0872952A3 (en) CMOS rail-to-rail input/output amplifier
AU2003260008A1 (en) System and method for establishing the input impedance of an amplifier in a stacked configuration
AU2001214630A1 (en) Modulator with low sensitivity to amplitude and phase errors of the carrier signal
Kawanishi et al. Study of precise optical modulation using Mach-Zehnder interferometers for advanced modulation formats
US6100756A (en) Method and apparatus for high efficiency power amplification
DE50009837D1 (en) Liquid portionable anhydrous detergent concentrate
WO2003017507A3 (en) Transmitter apparatus and methods using frequency doubling modulation
AU2168101A (en) Electronic circuit
ATE388517T1 (en) DIFFERENTIALLY ARRANGE TRANSISTOR PAIR WITH MEANS FOR DEGENERATION OF TRANSCONDUCTANCE
WO2003047088A3 (en) Frequency modulator using switched capacitors
WO2003023948A3 (en) Transmitter arrangement especially for mobile radio