ES2056740B1 - ANALOGUE CIRCUIT TO PERFORM VECTOR MODULATIONS. - Google Patents

ANALOGUE CIRCUIT TO PERFORM VECTOR MODULATIONS.

Info

Publication number
ES2056740B1
ES2056740B1 ES9300344A ES9300344A ES2056740B1 ES 2056740 B1 ES2056740 B1 ES 2056740B1 ES 9300344 A ES9300344 A ES 9300344A ES 9300344 A ES9300344 A ES 9300344A ES 2056740 B1 ES2056740 B1 ES 2056740B1
Authority
ES
Spain
Prior art keywords
multiplier
output terminals
sample
carrier
perform vector
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.)
Expired - Fee Related
Application number
ES9300344A
Other languages
Spanish (es)
Other versions
ES2056740A2 (en
ES2056740R (en
Inventor
De Miguel Angel Boveda
Martinez Felix Ortigoso
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.)
Nokia Spain SA
Original Assignee
Alcatel Standard Electrics 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 Alcatel Standard Electrics SA filed Critical Alcatel Standard Electrics SA
Priority to ES9300344A priority Critical patent/ES2056740B1/en
Publication of ES2056740A2 publication Critical patent/ES2056740A2/en
Publication of ES2056740R publication Critical patent/ES2056740R/es
Application granted granted Critical
Publication of ES2056740B1 publication Critical patent/ES2056740B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Amplitude Modulation (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

CIRCUITO ANALOGICO PARA REALIZAR MODULACIONES VECTORIALES. DEL TIPO DE LOS QUE COMPRENDEN UN PRIMER MULTIPLICADOR (1) QUE MULTIPLICA UNA PRIMERA MUESTRA DE PORTADORA (10) POR LA COMPONENTE EN FASE (11) DE LA SEÑAL MODULADORA, UN SEGUNDO MULTIPLICADOR (2) QUE MULTIPLICA UNA SEGUNDA MUESTRA DE PORTADORA (20), DESFASADA 90 CON RESPECTO DE LA PRIMERA MUESTRA DE PORTADORA (10), POR LA COMPONENTE EN CUADRATURA (21) DE LA SEÑAL MODULADORA, Y UN SUMADOR (3) QUE SUMA LAS SEÑALES DE SALIDA (12, 22) DE AMBOS MULTIPLICADORES, OBTENIENDO LA SEÑAL MODULADA (31). LOS MULTIPLICADORES SE IMPLEMENTAN MEDIANTE CELULAS MULTIPLICADORAS DE CUATRO CUADRANTES DISEÑADAS CON TRANSISTORES DE EFECTO DE CAMPO Y DONDE CADA UNO DE LOS TERMINALES DE SALIDA DE UN MULTIPLICADOR SE CONECTA A UNO DE LOS TERMINALES DE SALIDA DEL OTRO MULTIPLICADOR, DE FORMA QUE LA DIFERENCIA DE CORRIENTES ENTRE LOS DOS TERMINALES DE SALIDA (S1, S2) ES PROPORCIONAL A LA SUMA O DIFERENCIA DE LOS PRODUCTOS DE SALIDA DE AMBOS MULTIPLICADORES. ESTECIRCUITO ES ESPECIALMENTE APLICABLE PARA REALIZAR MODULADORES EN FASE-CUADRATURA, DE BANDA ANCHA Y ALTA PRECISION.ANALOGUE CIRCUIT TO PERFORM VECTOR MODULATIONS. OF THE TYPE OF THOSE THAT INCLUDE A FIRST MULTIPLIER (1) THAT MULTIPLIES A FIRST CARRIER SAMPLE (10) BY THE PHASE COMPONENT (11) OF THE MODULATING SIGNAL, A SECOND MULTIPLIER (2) THAT MULTIPLIES A SECOND CARRIER SAMPLE (20 ), LAGGED 90 WITH REGARD TO THE FIRST SAMPLE OF CARRIER (10), BY THE QUADRATURE COMPONENT (21) OF THE MODULATING SIGNAL, AND A SUMMER (3) THAT ADDS THE OUTPUT SIGNALS (12, 22) OF BOTH MULTIPLIERS, OBTAINING THE MODULATED SIGNAL (31). THE MULTIPLIERS ARE IMPLEMENTED THROUGH FOUR QUADRANT MULTIPLIER CELLS DESIGNED WITH FIELD EFFECT TRANSISTORS AND WHERE EACH OF THE OUTPUT TERMINALS OF A MULTIPLIER IS CONNECTED TO ONE OF THE MULTIPLE OUTPUT TERMINALS OF THE OTHER MULTIPLIER. THE TWO OUTPUT TERMINALS (S1, S2) IS PROPORTIONAL TO THE SUM OR DIFFERENCE OF THE OUTPUT PRODUCTS OF BOTH MULTIPLIER. THIS CIRCUIT IS ESPECIALLY APPLICABLE FOR MAKING PHASE-QUADRATURE, WIDE BAND AND HIGH PRECISION MODULATORS.

ES9300344A 1993-02-22 1993-02-22 ANALOGUE CIRCUIT TO PERFORM VECTOR MODULATIONS. Expired - Fee Related ES2056740B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9300344A ES2056740B1 (en) 1993-02-22 1993-02-22 ANALOGUE CIRCUIT TO PERFORM VECTOR MODULATIONS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9300344A ES2056740B1 (en) 1993-02-22 1993-02-22 ANALOGUE CIRCUIT TO PERFORM VECTOR MODULATIONS.

Publications (3)

Publication Number Publication Date
ES2056740A2 ES2056740A2 (en) 1994-10-01
ES2056740R ES2056740R (en) 1997-01-01
ES2056740B1 true ES2056740B1 (en) 1997-08-01

Family

ID=8280864

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9300344A Expired - Fee Related ES2056740B1 (en) 1993-02-22 1993-02-22 ANALOGUE CIRCUIT TO PERFORM VECTOR MODULATIONS.

Country Status (1)

Country Link
ES (1) ES2056740B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311971A (en) * 1979-09-19 1982-01-19 Hazeltine Corporation Apparatus for generating constant-envelope, angle-modulated pulse signals
US4603435A (en) * 1984-08-20 1986-07-29 Gte Laboratories Incorporated Microwave mixer apparatus
GB2208340B (en) * 1987-07-17 1992-01-22 Plessey Co Plc Electrical circuits
US5140198A (en) * 1989-08-30 1992-08-18 Seiko Corporation Image canceling mixer circuit on an integrated circuit chip
US5093636A (en) * 1990-09-25 1992-03-03 Hewlett-Packard Company Phase based vector modulator

Also Published As

Publication number Publication date
ES2056740A2 (en) 1994-10-01
ES2056740R (en) 1997-01-01

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