<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1665-3521</journal-id>
<journal-title><![CDATA[Superficies y vacío]]></journal-title>
<abbrev-journal-title><![CDATA[Superf. vacío]]></abbrev-journal-title>
<issn>1665-3521</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-35212011000100004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Convertidor RF-CD para aplicaciones en etiquetas pasivas RFID]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Castillo]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Ramirez]]></surname>
<given-names><![CDATA[P. J.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-González]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera-May]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sauceda-Carvajal]]></surname>
<given-names><![CDATA[Á.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castellanos-Mier]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Solís-Bustos]]></surname>
<given-names><![CDATA[Sergio]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Veracruzana Centro de Investigación en Micro y Nanotecnología ]]></institution>
<addr-line><![CDATA[Veracruz ]]></addr-line>
<country>México</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Intel Tecnología de México  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2011</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2011</year>
</pub-date>
<volume>24</volume>
<numero>1</numero>
<fpage>14</fpage>
<lpage>19</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-35212011000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-35212011000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-35212011000100004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[El diseño, fabricación y caracterización de un circuito convertidor de RF-CD para una frecuencia de operación a 915 MHz realizado en tecnología 0.5 &#956;m CMOS en aplicaciones de TAGs pasivos RFID es presentado. Este diseño se basa en un sistema rectificador-multiplicador de tres etapas implementado con una red de transistores tipo N conectados como diodos y capacitores. El voltaje mínimo de entrada requerido para su funcionamiento es de 0.7 V con una respuesta en el tiempo menor a 1 mseg y un voltaje CD generado de ±1.5 V.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[The design, fabrication and characterization of an RF-DC converter circuit for operating at a frequency of 915 MHz fabricated with a 0.5 µm CMOS technology is presented; this is intended applications in RFID passive TAGs. The design is based on a three stages rectifier-multiplier system implemented with an N-type transistors network connected as diodes as well as capacitors. The minimum input voltage required for its operation is 0.7 V, with a time response shorter than 1 msec, and a DC generated voltage of ±1.5 V.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[RFID]]></kwd>
<kwd lng="es"><![CDATA[TAG pasivo]]></kwd>
<kwd lng="es"><![CDATA[Convertidor de RF-CD]]></kwd>
<kwd lng="es"><![CDATA[Rectificador-multiplicador CD]]></kwd>
<kwd lng="en"><![CDATA[RFID]]></kwd>
<kwd lng="en"><![CDATA[Passive TAG]]></kwd>
<kwd lng="en"><![CDATA[RF-DC converter]]></kwd>
<kwd lng="en"><![CDATA[DC rectifier-multiplier]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  	    <p align="center"><font face="verdana" size="4"><b>Convertidor RF&#45;CD para aplicaciones en etiquetas pasivas RFID</b></font></p>  	    <p align="center"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="center"><font face="verdana" size="2"><b>J. Mart&iacute;nez&#45;Castillo*,&ordf;, P. J. Garc&iacute;a&#45;Ramirez&ordf;, L. Garc&iacute;a&#45;Gonz&aacute;lez&ordf;, L. Herrera&#45;May&ordf;, &Aacute;. Sauceda&#45;Carvajal&ordf;, A. Castellanos&#45;Mier&ordf; y Sergio Sol&iacute;s&#45;Bustos<sup>b</sup></b></font></p>      <p align="center"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><i>&ordf; Centro de Investigaci&oacute;n en Micro y Nanotecnolog&iacute;a, Universidad Veracruzana</i> <i>C.P.</i> <i>94294, Veracruz, M&eacute;xico.</i> * <a href="mailto:jaimartinez@uv.mx">jaimartinez@uv.mx</a></font></p>  	    <p align="justify"><font face="verdana" size="2"><i><sup>b</sup> Intel Tecnolog&iacute;a de M&eacute;xico, S. A. de C.V.</i></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2">Recibido: 16 de octubre de 2010;    <br> 	Aceptado: 11 de febrero de 2011</font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>  	    <p align="justify"><font face="verdana" size="2">El dise&ntilde;o, fabricaci&oacute;n y caracterizaci&oacute;n de un circuito convertidor de RF&#45;CD para una frecuencia de operaci&oacute;n a 915 MHz realizado en tecnolog&iacute;a 0.5 <i>&#956;m</i> CMOS en aplicaciones de TAGs pasivos RFID es presentado. Este dise&ntilde;o se basa en un sistema rectificador&#45;multiplicador de tres etapas implementado con una red de transistores tipo N conectados como diodos y capacitores. El voltaje m&iacute;nimo de entrada requerido para su funcionamiento es de 0.7 V con una respuesta en el tiempo menor a 1 mseg y un voltaje CD generado de &plusmn;1.5 V.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Palabras claves:</b> RFID; TAG pasivo; Convertidor de RF&#45;CD; Rectificador&#45;multiplicador CD.</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>  	    <p align="justify"><font face="verdana" size="2">The design, fabrication and characterization of an RF&#45;DC converter circuit for operating at a frequency of 915 MHz fabricated with a 0.5 <i>&micro;m</i> CMOS technology is presented; this is intended applications in RFID passive TAGs. The design is based on a three stages rectifier&#45;multiplier system implemented with an N&#45;type transistors network connected as diodes as well as capacitors. The minimum input voltage required for its operation is 0.7 V, with a time response shorter than 1 msec, and a DC generated voltage of &plusmn;1.5 V.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Keywords:</b> RFID; Passive TAG; RF&#45;DC converter; DC rectifier&#45;multiplier.</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><a href="/pdf/sv/v24n1/v24n1a4.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Agradecimientos</b></font></p>  	    <p align="justify"><font face="verdana" size="2">Los autores agradecen al centro de fabricaci&oacute;n de semiconductores MOSIS por el chip desarrollado dentro del programa acad&eacute;mico de investigaci&oacute;n MEP, al sistema nacional de investigadores por los recursos econ&oacute;micos para la investigaci&oacute;n y al CONACYT dado el apoyo otorgado mediante el proyecto de investigaci&oacute;n b&aacute;sica 56642&#45;2007&#45;2009 denominado "Investigaci&oacute;n de Circuitos Integrados para Sistemas de Identificaci&oacute;n por Radio Frecuencia".</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Referencias</b></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2">&#91;1&#93;. Y. 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<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Nota</b></font></p>  	    <p align="justify"><font face="verdana" size="2">The Editors thank to the Physics Department of the Centro de Investigaci&oacute;n y de Estudios Avanzados del IPN for the support in the publication of this issue, and the cooperation of M en C. Alejandra Garc&iacute;a Sotelo and Eng. Erasmo G&oacute;mez.</font></p>      ]]></body><back>
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