Searched for: subject%3A%22RF%22
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Iskander-Rizk, Sophinese (author), Kruizinga, P. (author), Beurskens, Robert (author), Springeling, Geert (author), Mastik, Frits (author), de Groot, N.M.S. (author), Knops, Paul (author), van der Steen, A.F.W. (author), van Soest, Gijs (author)
In interventional electrophysiology, catheter-based radiofrequency (RF) ablation procedures restore cardiac heart rhythm by interrupting aberrant conduction paths. Real-time feedback on lesion formation and post-treatment lesion assessment could overcome procedural challenges related to ablation of underlying structures and lesion gaps. This...
journal article 2019
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BALAMURALI, SRIRAM (author)
The promise that quantum computing is going to solve intractable computational problems has drawn tremendous interest and motivation in research communities throughout the world. However, operating a large-scale quantum computer requires classical electronics. In the present experimental setups, classical electronics is placed at room...
master thesis 2018
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Sunil Sheelavant, Sunil (author)
While there are many technologies and electronic systems used to detect the human vital signs by monitoring the heart beat rate & respiration rate, all these systems rely on physical contact with the human body. Furthermore, each measuring system can only be used for a single person thus increasing the cost and complexity of integrated...
master thesis 2018
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Meekes, Bauke (author), Waegenaere, Victor (author)
This report discusses one part of a project consisting of three parts. The goal of the project is to design a battery less sensor powered by RF energy fields present in an office environment. The sensor is able to measure the temperature and is able to communicate wirelessly using a low power communication protocol. In this project the use case...
bachelor thesis 2018
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Bosma, Detmer (author), Lindeman, Pim (author)
This report discusses one part of a project consisting of three parts. The goal of the project is to design a battery less sensor powered by RF energy fields present in an office environment. The sensor is able to measure the temperature and is able to communicate wirelessly using a low power communication protocol.In this report the energy...
bachelor thesis 2018
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Kappelle, Daniël (author), Bronkhorst, Erné (author)
This report discusses one part of a project consisting of three parts. The goal of the project is to design a battery less sensor powered by RF energy fields present in an office environment. The sensor is able to measure temperature and is able to communicate wirelessly using a low power communication protocol. In this project the use case of a...
bachelor thesis 2018
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Caenen, Roger (author)
This thesis shows the mass reduction of a mechanical bracket, without compromising on thermal, EMC and structural aspects. The focus was on analysing thermal aspects related to bracket design. Models were made to show the deflection and solder layer stresses due to CTE mismatches between the bracket and PCB. A thermal heat transfer model was...
master thesis 2018
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Tsorvas, Jim (author)
Internet of Things (IoT) encloses the utilization of sensors, actuators and data communication technologies embedded into physical devices enabling them to be tracked, coordinated or controlled over the Internet. Medical IoT refers to the vision where several wearables, sensors and actuators are scattered inside medical facilities and can...
master thesis 2017
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Bouazzata, Bilal (author), van der Kolk, Niels (author)
In this thesis, a new RF Power Amplifier design is proposed that targets for improving the efficiency profile of classical RF Amplifiers. This RF Power Amplifier is especially designed for modulation schemes that need a PA with high PAPR. The PA consists of two different stages that will be digitally controlled. One of these stages has an...
bachelor thesis 2017
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Buijs, L. (author), Hoogelander, M. (author)
In this work, a switched-device power amplier using bias control is designed and realized. The PA operates at a frequency of 100MHz. Test results show that the PA achieves a PAE of 63% at −6dB power back-off and 60% at the peak output power of 40dBm. First, an overview of the state-of-the-art PA technology and performance in high PAPR...
bachelor thesis 2017
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Phung, T.T.N. (author)
To reduce the usage of Indium (rare material) in CIGS, ultra thin, high efficiency CIGS based solar devices have been developed in our group. One approach is to fabricate hybrid tandem cells between hydrogenated amorphous silicon and CIGS. Because the a-Si:H top sub-cell limits the current of such a device, it is desirable to texture the top...
master thesis 2017
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Schotman, Ronald (author), Wolleswinkel, Marck (author)
This document describes the Bachelor Graduation Project of the Communication and System integration group of the Zebro Localisation and Communication Module. The module has been designed for a Zebro which is a six legged robot with the purpose of working in swarm-related behaviour. To make this behaviour possible a new Localisation module for...
bachelor thesis 2017
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Bashir, I. (author), Staszewski, R.B. (author), Balsara, Poras T. (author)
We present a numerical model of a wideband injection-locked frequency modulator used in a polar transmitter for 3G cellular radio application. At the heart of the system is a self-injection-locked oscillator with a programmable linear tuning range of up to 200 MHz at 4-GHz oscillation frequency. The oscillator is injection locked to a time...
journal article 2017
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Tohidian, M. (author), Madadi, I. (author), Staszewski, R.B. (author)
The zero/low intermediate frequency (IF) receiver (RX) architecture has enabled full CMOS integration. As the technology scales and wireless standards become ever more challenging, the issues related to time-varying dc offsets, the second-order nonlinearity, and flicker noise become more critical. In this paper, we propose a new architecture of...
journal article 2017
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Kraan, W.H. (author), Zabenkin, V.N. (author), Axelrod, LA (author), Chetverikov, Yu.O. (author), Grigoriev, SV (author), Yashina, E.G. (author), Sumbatyan, A.A. (author)
We made software to simulate Larmor precession in a setup for SESANS with adiabatic/RF flippers in magnets, existing at PNPI. The final polarisation of a divergent “ribbon beam” of height 2 cm is calculated as a function of λ. For λ= 6 A, flippers 56 cm apart and RF frequency 1 MHz we find spin-echo length δ= 0.9 μm. We show numerically, how λ...
journal article 2017
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Stoopman, M. (author), Philips, Kathleen (author), Serdijn, W.A. (author)
This paper presents the system and circuit design of a compact radio frequency (RF)-powered 2.4-GHz CMOS transmitter (TX) to be used for autonomous wireless sensor nodes (WSNs). The proposed TX utilizes the received dedicated RF signal for both energy harvesting as well as frequency synthesis. A TX RF carrier is derived from the received RF...
journal article 2017
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Shahmohammadi, M. (author)
doctoral thesis 2016
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D'Avino, M. (author)
master thesis 2016
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Rodrigues Mansano, A.L. (author)
Since the Internet of Things (IoT) is expected to be the new technology to drive the semiconductor industry, significant research efforts have been made to develop new circuit and system techniques for autonomous/very low-power operation of wireless sensor nodes. Very low-power consumption of sensors is key to increase battery lifetime or allow...
doctoral thesis 2016
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Stoopman, M. (author)
Emerging applications such as Internet of Things (IoT), smart buildings and warehouse inventory management are important driving forces behind the development of Wireless Sensor Nodes (WSNs). With future advancements made in the semiconductor industry, these WSNs are expected to become smaller, cheaper, more reliable and with improved...
doctoral thesis 2016
Searched for: subject%3A%22RF%22
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