11 Hits in 16.3 sec

Topics in circuits for communications - Design and implementation of an all-cmos 802.11a wireless lan chipset

T.H. Meng, B. McFarland, D. Su, J. Thomson
2003 IEEE Communications Magazine  
POWER CONSUMPTION The analog RF transceiver has been integrated in a 0.25 µm, single-poly, 5-metal CMOS technology.  ...  Figure 2 shows the system partition of the two-chip set implemented in 0.25 µm CMOS.  ... 
doi:10.1109/mcom.2003.1222734 fatcat:oqcgxivjjja7zj6pucl6ea4i7m

Wireless body sensor networks for health-monitoring applications

Yang Hao, Robert Foster
2008 Physiological Measurement  
A generic miniature platform and other available technologies for wireless sensors have been studied in terms of hardware and software structural requirements for a low cost, low power, non-invasive and  ...  This paper aims to provide a comprehensive review of recent developments in wireless sensor technology for monitoring behaviour related to human physiological responses.  ...  The Sensium chip is fabricated in a 0.13 μm CMOS technology; the transceiver section occupies approximately 7 mm 2 in a total SoC die size of 4 x 4 mm 2 .  ... 
doi:10.1088/0967-3334/29/11/r01 pmid:18843167 fatcat:l4yhnxbri5azxk6kdclyk6lgom

A Summary Review of Wireless Sensors and Sensor Networks for Structural Health Monitoring

J. P. Lynch
2006 The Shock and vibration digest  
Also, wireless sensors have limitations that require novel system architectures and modes of operation.  ...  This paper is intended to serve as a summary review of the collective experience the structural engineering community has gained from the use of wireless sensors and sensor networks for monitoring structural  ...  The IEEE802.15.4 transceiver operates on the 2.4 GHz ISM radio band with a data rate of 230 kbps and an indoor range of 10 m.  ... 
doi:10.1177/0583102406061499 fatcat:dmalfe7ipfewlj6er4e2kjwwyi

Circuits, Architectures and Antenna Design For 5G Wireless Transceivers

Waleed M. El-Halwagy
For analog-to-digital conversion, two prototypes were designed and fabricated in the 65nm CMOS process. First, a first-order noise-shaped time-domain ADC is introduced.  ...  It employs a reconfigurable TDC that can be configured as a high resolution correlated double sampling SAR-TDC for the high resolution modes or as a Flash-TDC for the high sampling rate modes.  ...  for all the support they give to the graduate students to help them focus on their research and enhance their productivity.  ... 
doi:10.7939/r36h4d56h fatcat:xaikovsakjc7lnytf5cgazwd4y

Efficient Design, Integration and Optimization of Highly Miniaturized Filters for RF/Wireless Applications [article]

Mohamadou Baba, Technische Universität Berlin, Technische Universität Berlin, Herbert Reichl
In the framework of this work, a methodology for efficient design and integration of RF filters was developed.  ...  For the implementation of second order bandpass filters, the following design topologies and configurations were derived: "gap topology", "tap topology", "lateral configuration", "vertical configuration  ...  Acknowledgments This project was carried out in the Department of System Design & Integration (SDI) at the Fraunhofer Institute for Reliability and Microintegration (FhG-IZM) in Berlin, where I have been  ... 
doi:10.14279/depositonce-1819 fatcat:42ypodvlinh4fldmmoxltdk3ti

Ultra-low power IoT applications: from transducers to wireless protocols

Tommaso Polonelli
This thesis aims to serve as a reference and guideline document for future IoT projects, where results are structured following a conventional development pipeline.  ...  To enhance these features and to provide a bottom-top overview of an IoT sensor node, an innovative and low-cost transducer for structural health monitoring is presented.  ...  1 km NB-IoT Good - 0.9 mJ 100 m UWB Mode 3 100 kbps 2.1 µJ 100 m WiFi (UDP) 29.6 Mbps 30 nJ 20 m UWB Mode 2 6 Mbps 44 nJ 20 m Bluetooth 200 kbps 730 nJ 10 m a "Bad" one (average RSSI  ... 
doi:10.6092/unibo/amsdottorato/9604 fatcat:gxsnsevsgngnreqten2mlq3xr4

Multi-Band Outphasing Power Amplifier Design for Mobile and Base Stations

Omid Talebi Amiri
Consequently, high-Q (~35 @ 1.8 GHz) and relatively compact (80×440 µm 2 ) slab inductors were designed using a 3D electromagnetic simulator.  ...  Considering very thin gate oxide in advanced CMOS technologies (e.g. 2.4 nm in 90 nm CMOS process), it needs quite a small voltage for such a defect to occur.  ... 
doi:10.5075/epfl-thesis-6410 fatcat:6dvxjjc6gbgd3azdfoipijzswq

Impulse radio ultra wideband over fiber techniques for broadband in-building network applications [article]

ST Solomon Abraha, AMJ Ton Koonen, E Eduward Tangdiongga
Furthermore, performance evaluation of 2 Gb/s transmission of IR-UWB over different types of fiber such as 25 km silica single-mode, 4.4 km silica multi-mode and 100 m plastic heavily-multi-mode fiber  ...  of several GHz.  ...  The modulated signal was transmitted over 100 meters of 50µm core PF GI-POF and detected by a 25 GHz photo-detector (PD) with a photosensitive area of 25µm.  ... 
doi:10.6100/ir735363 fatcat:7xckohl2lvdopbbb4oo7rdeboa

Ultra Low Power Communication Protocols for UWB Impulse Radio Wireless Sensor Networks

Jérôme Rousselot
The last part of this thesis studies analytically a dual mode MAC protocol named WideMac-High Availability.  ...  to control the measurements, process the information and communicate with its peers, and a radio transceiver to enable these communications.  ...  2420 2.4 GHz radio transceiver), and an FM-UWB ULP (WiseMAC) solution.  ... 
doi:10.5075/epfl-thesis-4720 fatcat:hmpvy2f2inefjhnmgnhhgem6ta

Progetto di reti Sensori Wireless e tecniche di Fusione Sensoriale

Piero <1980> Zappi, Luca Benini
Such techniques allow the detection of the number of people moving in the environment, their direction of movement and their position.  ...  The dependence on a large amount of fixed and mobile sensors embedded into the environment makes of Wireless Sensor Networks one of the most relevant enabling technologies for AmI.  ...  MC1322x Platform in a Package (PiP) The MC1322xV [68] is Freescales third-generation ZigBee platform which incorporate a complete, low power, 2.4 GHz radio frequency transceiver, 32-bit ARM7 core  ... 
doi:10.6092/unibo/amsdottorato/1494 fatcat:fizyqjpdmjgubpadcmd5ly46hi

Formation-Based Odour Source Localisation Using Distributed Terrestrial and Marine Robotic Systems

Jorge Miguel Dias Almeida Rodrigues Soares
The flow (wind or current) direction is used to orient the formation and move the robots up-flow, while the measured concentrations are used to centre the robots in the plume and scale the formation to  ...  We focus on distributed strategies for odour plume tracing in the air and in the water and look primarily at 2D scenarios, although novel results are also presented for 3D tracing.  ...  A combined transceiver provides both 802.11b/g (WiFi) and Bluetooth 2.0+EDR capabilities using internal antennae.  ... 
doi:10.5075/epfl-thesis-7080 fatcat:lkzmcnxwm5hxdjbu7dvdivnd7m