ATE289128T1 - Symmetrischer quadraturmodulator unter verwendung von zweistufiger frequenzumsetzung - Google Patents

Symmetrischer quadraturmodulator unter verwendung von zweistufiger frequenzumsetzung

Info

Publication number
ATE289128T1
ATE289128T1 AT01202654T AT01202654T ATE289128T1 AT E289128 T1 ATE289128 T1 AT E289128T1 AT 01202654 T AT01202654 T AT 01202654T AT 01202654 T AT01202654 T AT 01202654T AT E289128 T1 ATE289128 T1 AT E289128T1
Authority
AT
Austria
Prior art keywords
frequency conversion
modulator
quadrature modulator
stage frequency
block
Prior art date
Application number
AT01202654T
Other languages
English (en)
Inventor
Arnaud Casagrande
Original Assignee
Asulab Sa
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 Asulab Sa filed Critical Asulab Sa
Application granted granted Critical
Publication of ATE289128T1 publication Critical patent/ATE289128T1/de

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
    • H03C1/542—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Amplitude Modulation (AREA)
AT01202654T 2001-07-10 2001-07-10 Symmetrischer quadraturmodulator unter verwendung von zweistufiger frequenzumsetzung ATE289128T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01202654A EP1289122B1 (de) 2001-07-10 2001-07-10 Symmetrischer Quadraturmodulator unter Verwendung von zweistufiger Frequenzumsetzung

Publications (1)

Publication Number Publication Date
ATE289128T1 true ATE289128T1 (de) 2005-02-15

Family

ID=8180627

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01202654T ATE289128T1 (de) 2001-07-10 2001-07-10 Symmetrischer quadraturmodulator unter verwendung von zweistufiger frequenzumsetzung

Country Status (3)

Country Link
EP (1) EP1289122B1 (de)
AT (1) ATE289128T1 (de)
DE (1) DE60108866T2 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5373265A (en) * 1993-07-06 1994-12-13 At&T Corp. Modulator having oscillator for generating IF and RF signals by division and up-conversion
US6029059A (en) * 1997-06-30 2000-02-22 Lucent Technologies, Inc. Quadrature mixer method and apparatus
US5847623A (en) * 1997-09-08 1998-12-08 Ericsson Inc. Low noise Gilbert Multiplier Cells and quadrature modulators
US5861781A (en) * 1997-09-16 1999-01-19 Lucent Technologies Inc. Single sideband double quadrature modulator
FI107656B (fi) * 1998-10-30 2001-09-14 Nokia Mobile Phones Ltd Alipäästösuodin lähettimessä ja matkaviestin

Also Published As

Publication number Publication date
DE60108866D1 (de) 2005-03-17
EP1289122B1 (de) 2005-02-09
EP1289122A1 (de) 2003-03-05
DE60108866T2 (de) 2006-01-12

Similar Documents

Publication Publication Date Title
AU635977B2 (en) Color display
GB9824019D0 (en) Method,device,phone and base static for providing envelope-following for variable envelope radio frequency signals
CA2083219A1 (en) Optical transmitter having optical modulator
EP2228963A3 (de) Quadraturemodulator mit vier um 90 Grad verschobenen Trägern
CA2043413A1 (en) Dual mode power amplifier for radiotelephone
WO1999040559A3 (en) Organic electroluminescent device
WO2000041371A3 (en) Power i-q modulation systems and methods using predistortion circuit
MY139090A (en) High performance modulator architecture for the outphasing rf amplifier
SE0004031L (sv) Direkt digital amplitudmodulator
WO2004012343A3 (en) Radio transceiver architectures and methods
DE50010501D1 (de) Näherungsschalter
DE69023753D1 (de) Hochfrequenzverstärker mit niedriger Verzerrung.
CA2302256A1 (en) Predistortion linearizer circuit
ATE289128T1 (de) Symmetrischer quadraturmodulator unter verwendung von zweistufiger frequenzumsetzung
ATE277471T1 (de) Abgleichverfahren für einen transceiver mit zwei- punkt-modulation
MY127971A (en) Panel form loudspeaker
CA2351265A1 (en) Optical frequency converter using reciprocating modulation
EP0398590A3 (de) Modulator
ATE306127T1 (de) Quatro-konverter
HK1045767A1 (zh) 用於無線手機的功率放大器驅動系統
CA2342525A1 (en) Reciprocating optical modulation system
DK1307436T3 (da) Fremgangsmåde til fremstilling af baccatin III-derivater
WO1999023867A3 (en) Bmog, a protein member of the myelin-oligodendrocyte glycoprotein family and its use
DE60232198D1 (de) Frequenzmodulator unter verwendung geschalteter kapazitäten
CA2361369A1 (en) Tuning arrangement

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties