A Feedback Wideband lna for UWB Applications

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Publicated in XXII Design of Integrated Circuits and Systems Conference (Internacional), Sevilla, España, 2007

A Feedback Wideband LNA for UWB Applications
R. Pulido, H. García, J. del Pino, S. L. Khemchandani, A. Hernández

Dto. de Ingeniería Electrónica y Automática (DIEA) & Instituto Universitario de Microelectrónica Aplicada (IUMA). Universidad de Las Palmas de Gran Canaria (Spain)

Publicated in
XXII Design of Integrated Circuits and Systems
Conference (Internacional),
Sevilla, España, 2007

Abstract
A fully-integrated feedback wide band amplifier is implemented in a standard SiGe low cost 0.35 µm process. The
circuit provides a gain from 13 to 7 dB in the band between 3.1 to 10.6 GHz. In the same band the noise figure varies
from 3.6 to 4.7 dB in band. Design guidelines for optimizing amplifier gain and noise figure are presented. Chip
dimensions are 0.580 × 0.636 mm and power dissipation is 19 mW, drawn from a 3.3V supply.

LNA Design Measurements & Simulations

Schematic of a receiver for UWB. a) S21 with different consumption. And b ) Feedback amplifier post-layout S21 and S12.

0

a) Feedback amplifier post-layout Phase S21.b) Feedback amplifier post-layout S21 and S12.
Basic Distributed Amplifier schematic.

Post-layout, 1 dB compression point at 6 GHz.

Conclusions
In this paper we have reported the fundamental design aspects of
wideband low-noise feedback amplifiers with SiGe transistors and
on chip inductors. A description of the LNA configuration was
explained emphasizing the influence of the design parameters in
the circuit performance. The circuit was implemented in a standard
low cost 0.35 µm process and provides a worst case gain from 13
to 7 dB in the band between 3.1 to 10.6 GHz. The noise figure
ranges from 3.6 to 4.7 dB in the same band. The circuit only
Wide band amplifier layout including pads for on chip measurements. requires 5.75 mA from a 3.3-V supply.

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Este documento describe el diseño e implementación física de un cabezal de recepción para el estándar IEEE 802.15.4 en tecnología CMOS de 0.18 μm. Se presenta la arquitectura del cabezal de recepción basada en Low-IF, que incluye un amplificador de bajo ruido, un mezclador y dos amplificadores de transimpedancia. Se detalla el proceso de diseño a nivel de layout de cada bloque y del cabezal completo en Cadence. Finalmente, se muestran los resultados de simulación para

Diseño de un transmisor para el estándar IEEE 802.15.4 en tecnología CMOS 0.1...

RFIC-IUMA

Este documento describe el diseño de un transmisor para el estándar IEEE 802.15.4 en tecnología CMOS 0.18 μm. Se presentan los objetivos de bajo consumo y área reducida. Se describe el diseño de un mezclador pasivo doblemente balanceado y de un amplificador de potencia de dos etapas de clase A. Finalmente, se muestran los resultados de simulación del mezclador y del amplificador de potencia.

Diseño de un filtro polifásico para un receptor IEEE 802.15.4 en tecnología...

RFIC-IUMA

Este documento describe el diseño de un filtro polifásico para un receptor IEEE 802.15.4 en tecnología CMOS 0.18 μm. El objetivo principal es diseñar un filtro polifásico de bajo consumo para eliminar las frecuencias imagen en la banda de 2.4 GHz. El documento comienza explicando la teoría básica de los filtros y luego describe el diseño de un filtro paso bajo pasivo, un filtro activo basado en la topología Gm-C y la teoría de los filtros polifásicos. Finalmente

Sistema de localización de objetos basado en tecnología de Código Abierto de ...

RFIC-IUMA

Este documento describe el diseño y desarrollo de un sistema de localización de objetos basado en la tecnología Arduino. El sistema utiliza una placa Arduino Uno, un módulo GPRS y un módulo GPS para determinar la ubicación de un objeto y enviar un SMS si se aleja de una ubicación de referencia. El documento explica el estudio de la tecnología Arduino, el diseño del localizador, la programación de sus funciones y las pruebas realizadas para verificar su funcionamiento.

Diseño de un circuito Wake-up para redes de sensores inalámbricas

RFIC-IUMA

Este documento describe el diseño de un circuito wake-up para redes de sensores inalámbricas. Se implementó un circuito wake-up pasivo usando diodos rectificadores y un filtro RC para generar la señal de activación. También se diseñó el circuito en una PCB y se implementó un módulo digital usando un microcontrolador MSP430 y un receptor AS3933. Las mediciones mostraron que el circuito wake-up puede despertar sensores a distancias de hasta 40 metros con un consumo de solo 3 μA en modo dormido.

Caracterización del equipo de prácticas ME1000 para el diseño de circuitos de RF

RFIC-IUMA

El documento describe el equipo de prácticas ME1000 y sus subsistemas. Se divide en cuatro bloques: introducción, subsistemas del equipo, transceptor RF completo y valoración del proyecto. En la introducción se describen los objetivos de formación y aplicados al equipo. Los subsistemas analizados incluyen el amplificador de potencia, amplificador de bajo ruido y otros. En el bloque de transceptor RF completo se analizan las cabeceras de RF y el modelo comportamental del sistema. El último bloque contiene las conclusiones y presupuesto.

Diseño de un cabezal de recepción para el estándar IEEE 802.15.4 en tecnologí...

RFIC-IUMA

Este documento describe el diseño de un receptor de bajo consumo para el estándar IEEE 802.15.4 en la banda de 2,4 GHz utilizando la tecnología CMOS 0,18 μm. El objetivo es diseñar un cabezal de recepción basado en la arquitectura Low-IF que incluya un amplificador de bajo ruido, un mezclador y un amplificador de transimpedancia con bajo ruido y alta linealidad. Se presentan los detalles del diseño y simulación de cada bloque, así como las característic

Sistema de estabilización de cámara para cartografía aérea

RFIC-IUMA

Este documento describe el diseño de un sistema de estabilización de cámara para cartografía aérea. El sistema utiliza sensores inerciales, actuadores lineales y un microcontrolador para corregir los ángulos de cabeceo, alabeo y guiñada de una cámara durante la toma de fotografías aéreas. El documento también cubre el diseño de hardware, software y estructura necesarios para el sistema de estabilización.

Control automático de un sistema de riego

RFIC-IUMA

Este documento describe el diseño e implementación de un sistema de riego automático controlado. Se utilizarán placas Arduino, módulos XBee para comunicación inalámbrica entre nodos, y un módulo GPRS para control remoto. El sistema constará de 4 zonas de riego con sensores de humedad, iluminación, nivel de agua y batería. El controlador automatizará el riego basado en los datos de los sensores de forma autónoma y permitirá el monitoreo y control remoto a través de GPRS.

Diseño de un LNA basado en convertidores de corriente utilizando técnicas de ...

RFIC-IUMA

Este documento describe el diseño de un amplificador de bajo ruido (LNA) basado en convertidores de corriente utilizando técnicas de cancelación de ruido en tecnología CMOS 65nm. Presenta los conceptos de convertidores de corriente y técnicas de cancelación de ruido, y describe el diseño a nivel de esquemático y layout de un LNA que utiliza estas técnicas para reducir la figura de ruido. Los resultados muestran que el LNA propuesto cumple con los requisitos de baja figura

Implementación de una red de sensores inalámbrica para la monitorización de e...

RFIC-IUMA

Este documento presenta un proyecto final de carrera sobre el uso de redes de sensores inalámbricos para la detección de patologías constructivas. Se estudian las patologías de la construcción, el hardware libre Waspmote y sus sensores, y se realizan pruebas con los sensores y la placa Waspmote. El documento concluye evaluando la capacidad de almacenamiento de datos y modos de ahorro de batería, e indica posibles líneas futuras como pruebas en estructuras o integrar nuevos sensores y comunicaciones

Comunicaciones a través de voz sobre IP. Casos prácticos, adaptación empresar...

RFIC-IUMA

Este documento presenta un resumen de un proyecto de investigación sobre la voz sobre IP (VoIP). El proyecto analiza el estado actual de las redes de nueva generación, la telefonía tradicional frente a la VoIP, los dispositivos y software necesarios para VoIP, casos prácticos de implantación de VoIP y conclusiones. El documento está estructurado en 7 capítulos que cubren la introducción, el estado de las redes, telefonía tradicional vs VoIP, dispositivos VoIP, casos prácticos, conclusiones y presupuesto.

Diseño de un receptor de “Wake up” para redes de sensores inalámbricas median...

RFIC-IUMA

Este documento describe el diseño de un receptor de wake-up para redes de sensores inalámbricas utilizando una arquitectura Uncertain-IF. El objetivo es diseñar un receptor de muy bajo consumo para despertar nodos en la red de forma asíncrona. Se explican los componentes clave del receptor como el generador de la señal OOK, el mezclador y su red de adaptación. El diseño se realiza mediante simulaciones en ADS para validar el funcionamiento y optimizar el consumo.

Estudio y Análisis de un transceptor de largo alcance LORATM SX1272

RFIC-IUMA

Sistema para monitorizar y controlar instalaciones de forma remota utilizando...

RFIC-IUMA

Este documento presenta un sistema para monitorear y controlar instalaciones de forma remota utilizando software libre. El sistema consta de tres bloques: una unidad de control basada en Raspberry Pi, un servidor y base de datos, y una aplicación web. El sistema permite la monitorización en tiempo real de variables como temperatura, humedad y luminosidad, así como el control remoto de dispositivos como cámaras, LEDs y motores. El documento describe el diseño y funcionamiento de cada bloque y del sistema completo.

Implementación de una red de sensores inalámbrica para la monitorización de e...

RFIC-IUMA

Este documento resume un proyecto de implementación de una red de sensores inalámbrica para la monitorización de explotaciones vitivinícolas en Canarias. El proyecto consta de tres bloques: 1) introducción y marco tecnológico, 2) componentes de la red y su implementación, y 3) software de monitorización. Se utiliza una red ZigBee formada por nodos Arduino equipados con sensores de temperatura, humedad y luz, para controlar parámetros en la producción del vino. Los datos se envían a una aplicación

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