ES2056739A2 - Circuito desfasador ajustable. - Google Patents

Circuito desfasador ajustable.

Info

Publication number
ES2056739A2
ES2056739A2 ES09300343A ES9300343A ES2056739A2 ES 2056739 A2 ES2056739 A2 ES 2056739A2 ES 09300343 A ES09300343 A ES 09300343A ES 9300343 A ES9300343 A ES 9300343A ES 2056739 A2 ES2056739 A2 ES 2056739A2
Authority
ES
Spain
Prior art keywords
phase shifter
network
phase
series
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.)
Granted
Application number
ES09300343A
Other languages
English (en)
Other versions
ES2056739B1 (es
ES2056739R (es
Inventor
De Miguel Angel Boveda
Martinez Felix Ortigoso
Montes Jose Ignacio Alonso
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 ES9300343A priority Critical patent/ES2056739B1/es
Publication of ES2056739A2 publication Critical patent/ES2056739A2/es
Publication of ES2056739R publication Critical patent/ES2056739R/es
Application granted granted Critical
Publication of ES2056739B1 publication Critical patent/ES2056739B1/es
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

CIRCUITO DESFASADOR AJUSTABLE. DEL TIPO DE LOS QUE COMPRENDEN UN DIVISOR RESISTIVO (DR) PARA TOMAR UNA MUESTRA DE LA SEÑAL DE ENTRADA (VIN) Y DOS CELULAS DESFASADORAS (CD1, CD2) COMPUESTAS RESPECTIVAMENTE POR UNA RED RC SERIE EN SERIE CON UNA RED RC PARALELO, DE FORMA QUE SE OBTIENEN DOS SEÑALES DE SALIDA (VO1, VO2) COMO DIFERENCIAS ENTRE LA SEÑAL (V1) PROCEDENTE DEL DIVISOR RESISTIVO Y LAS PROCEDENTES RESPECTIVAMENTE DE CADA CELULA DESFASADORA (V2, V3). EN EL CIRCUITO DE LA INVENCION, UNA DE LAS RESISTENCIAS INCLUIDAS EN CADA CELULA DESFASADORA ES SUSTITUIDA POR UNA RED ACTIVA DE RESISTENCIA VARIABLE (RV) QUE COMPRENDE UN TRANSISTOR DE EFECTO DE CAMPO T POLARIZADO EN SU REGION OHMICA QUE EQUIVALE A UNA RESISTENCIA ENTRE DRENADOR Y FUENTE CONTROLABLE MEDIANTE UNA TENSION DE CONTROL (VC1, VC2) APLICADA AL RESPECTIVO TERMINAL DE PUERTA. ESPECIALMENTE APLICABLE EN LA OBTENCION DE DOS PORTADORAS DESFASAS 90 EN MODULADORES DIRECTOS (FASE-CUADRATURA) PARA ALTAS FRECUENCIAS Y ELEVADO ANCHO DE BANDA.
ES9300343A 1993-02-22 1993-02-22 Circuito desfasador ajustable. Expired - Fee Related ES2056739B1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9300343A ES2056739B1 (es) 1993-02-22 1993-02-22 Circuito desfasador ajustable.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9300343A ES2056739B1 (es) 1993-02-22 1993-02-22 Circuito desfasador ajustable.

Publications (3)

Publication Number Publication Date
ES2056739A2 true ES2056739A2 (es) 1994-10-01
ES2056739R ES2056739R (es) 1997-01-01
ES2056739B1 ES2056739B1 (es) 1997-08-01

Family

ID=8280862

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9300343A Expired - Fee Related ES2056739B1 (es) 1993-02-22 1993-02-22 Circuito desfasador ajustable.

Country Status (1)

Country Link
ES (1) ES2056739B1 (es)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745370A (en) * 1987-08-03 1988-05-17 Motorola, Inc. Adjustable phase shift circuit
FR2625630A1 (fr) * 1987-12-30 1989-07-07 Labo Electronique Physique Circuit dephaseur actif
US4866397A (en) * 1988-04-07 1989-09-12 Exar Corporation Wideband 0-90 degrees adjustable phase shifter
US5148062A (en) * 1991-12-19 1992-09-15 Raytheon Company Simplified phase shifter circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745370A (en) * 1987-08-03 1988-05-17 Motorola, Inc. Adjustable phase shift circuit
FR2625630A1 (fr) * 1987-12-30 1989-07-07 Labo Electronique Physique Circuit dephaseur actif
US4866397A (en) * 1988-04-07 1989-09-12 Exar Corporation Wideband 0-90 degrees adjustable phase shifter
US5148062A (en) * 1991-12-19 1992-09-15 Raytheon Company Simplified phase shifter circuit

Also Published As

Publication number Publication date
ES2056739B1 (es) 1997-08-01
ES2056739R (es) 1997-01-01

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