ES2056740B1 - Circuito analogico para realizar modulaciones vectoriales. - Google Patents
Circuito analogico para realizar modulaciones vectoriales.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
Links
- 230000005669 field effect Effects 0.000 abstract 1
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9300344A ES2056740B1 (es) | 1993-02-22 | 1993-02-22 | Circuito analogico para realizar modulaciones vectoriales. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9300344A ES2056740B1 (es) | 1993-02-22 | 1993-02-22 | Circuito analogico para realizar modulaciones vectoriales. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ES2056740A2 ES2056740A2 (es) | 1994-10-01 |
| ES2056740R ES2056740R (es) | 1997-01-01 |
| ES2056740B1 true ES2056740B1 (es) | 1997-08-01 |
Family
ID=8280864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES9300344A Expired - Fee Related ES2056740B1 (es) | 1993-02-22 | 1993-02-22 | Circuito analogico para realizar modulaciones vectoriales. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2056740B1 (es) |
Family Cites Families (5)
| 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 |
-
1993
- 1993-02-22 ES ES9300344A patent/ES2056740B1/es not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2056740A2 (es) | 1994-10-01 |
| ES2056740R (es) | 1997-01-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EC2A | Search report published |
Date of ref document: 19941001 Kind code of ref document: R Effective date: 19941001 |
|
| FD1A | Patent lapsed |
Effective date: 20041004 |