ES2036950B1 - Filtro de ondas acusticas superficiales resonante de bajas perdidas utilizando acoplador-reflector multistrip - Google Patents

Filtro de ondas acusticas superficiales resonante de bajas perdidas utilizando acoplador-reflector multistrip

Info

Publication number
ES2036950B1
ES2036950B1 ES9102664A ES9102664A ES2036950B1 ES 2036950 B1 ES2036950 B1 ES 2036950B1 ES 9102664 A ES9102664 A ES 9102664A ES 9102664 A ES9102664 A ES 9102664A ES 2036950 B1 ES2036950 B1 ES 2036950B1
Authority
ES
Spain
Prior art keywords
low loss
reflector
sound waves
surface sound
resonant
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 - Lifetime
Application number
ES9102664A
Other languages
English (en)
Other versions
ES2036950R (es
ES2036950A2 (es
Inventor
Chamorro Alberto Lopez
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 ES9102664A priority Critical patent/ES2036950B1/es
Publication of ES2036950A2 publication Critical patent/ES2036950A2/es
Publication of ES2036950R publication Critical patent/ES2036950R/es
Application granted granted Critical
Publication of ES2036950B1 publication Critical patent/ES2036950B1/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

FILTRO DE ONDAS ACUSTICAS SUPERFICIALES RESONANTE DE BAJAS PERDIDAS UTILIZANDO ACOPLADOR-REFLECTOR MULTISTRIP. APLICABLE AL FILTRADO DE SEÑALES ELECTRICAS DE ALTA FRECUENCIA Y QUE ESTA CONSTITUIDO MEDIANTE UNAS METALIZACIONES SOBRE UN SUSTRATO PIEZOELECTRICO (5) QUE DETERMINAN DOS ACOPLADORES-REFLECTORES MULTISTRIP (1 Y 2) QUE LIMITAN Y ACOPLAN DOS CAVIDADES RESONANTES, ENCONTRANDOSE ENTRE LOS ACOPLADORES-REFLECTORES (1 Y 2), DOS TRANSDUCTORES INTERDIGITADOS (3 Y 4) CONECTADOS EN PARALELO MEDIANTE DICHOS ACOPLADORES-REFLECTORES (1 Y 2), Y FORMADOS POR ELECTRODOS (10, 12 Y 13) DIMENSIONADOS MEDIANTE LA TECNICA DE APODIZACION, CONSIGUIENDOSE ASI BAJAS PERDIDAS Y UN ELEVADO RECHAZO DE BANDA EN LA RESPUESTA DEL FILTRO. ESTE FILTRO EMPLEA UN SUSTRATO PIEZOELECTRICO (5) CON ALTO COEFICIENTE DE ACOPLAMIENTO, PREFERENTEMENTE LINBO3 CON ORIENTACION DE 128 EL EJE Y Y CORTE SEGUN EL EJE X, QUE PERMITE LA REDUCCION DE SU TAMAÑO EN SU APLICACION A FRECUENCIAS VHF.
ES9102664A 1991-11-28 1991-11-28 Filtro de ondas acusticas superficiales resonante de bajas perdidas utilizando acoplador-reflector multistrip Expired - Lifetime ES2036950B1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9102664A ES2036950B1 (es) 1991-11-28 1991-11-28 Filtro de ondas acusticas superficiales resonante de bajas perdidas utilizando acoplador-reflector multistrip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9102664A ES2036950B1 (es) 1991-11-28 1991-11-28 Filtro de ondas acusticas superficiales resonante de bajas perdidas utilizando acoplador-reflector multistrip

Publications (3)

Publication Number Publication Date
ES2036950A2 ES2036950A2 (es) 1993-06-01
ES2036950R ES2036950R (es) 1995-07-01
ES2036950B1 true ES2036950B1 (es) 1996-02-16

Family

ID=8274333

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9102664A Expired - Lifetime ES2036950B1 (es) 1991-11-28 1991-11-28 Filtro de ondas acusticas superficiales resonante de bajas perdidas utilizando acoplador-reflector multistrip

Country Status (1)

Country Link
ES (1) ES2036950B1 (es)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3230038A1 (de) * 1982-08-12 1984-02-16 Siemens AG, 1000 Berlin und 8000 München Mit reflektierten akustischen wellen arbeitendes elektronisches bauelement
FR2612711A1 (fr) * 1987-03-19 1988-09-23 Thomson Csf Procede de correction d'un dispositif a ondes de surface, notamment pour un filtre dispersif
FR2649263B1 (fr) * 1989-06-30 1991-09-13 Thomson Csf Filtre a ondes de surface en double anneau quasi symetrique
DE59007583D1 (de) * 1989-11-14 1994-12-01 Siemens Ag Oberflächenwellen-reflektorfilter.

Also Published As

Publication number Publication date
ES2036950R (es) 1995-07-01
ES2036950A2 (es) 1993-06-01

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