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Suche nach „[Merz] [Christian]“ hat 23 Publikationen gefunden
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    DigitalNachhaltigElektrotechnik und Medientechnik

    Zeitschriftenartikel

    Christian Merz, Gerald Kupris

    Nonlinear Analysis of High Q Radio Frequency Energy Harvesting Networks

    Informatics, Control, Measurement in Economy and Environment Protection, vol. 8, no. 2, pp. 83-86

    2018

    DOI: 10.5604/01.3001.0012.0821

    Abstract anzeigen

    The paper focuses on nonlinear analysis of high and low Q RF energy harvesting circuits. The analysis is made mathematically and by large signal simulation via Keysight Advanced Design System. The mathematical analysis of the nonlinear harvesting circuits is done by using the Galerkin method and the simulations are performed using the harmonic balance method, which is a special version of the Galerkin method.

    DigitalNachhaltigElektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    Christian Merz, Gerald Kupris

    Efficiency Enhancement of High Q Energy Harvesting Networks

    Proceedings of Wireless Power Congress 2017 (12-12 July, 2017; Munich, Germany)

    2017

    NachhaltigElektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    Christian Merz, Gerald Kupris

    Nonlinear Large Signal Analysis of High Q RF Energy Harvesting Circuits

    Proceedings of the 22nd International Conference on Applied Electronics (AE 2017) [Sep 5-7, 2017; University of West Bohemia, Pilsen, Czech Republic]

    2017

    NachhaltigElektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    Christian Merz, Gerald Kupris

    Nonlinear Analysis of High Q Radio Frequency Energy Harvesting Networks

    Proceedings of the XIX International Symposium on Theoretical Electrical Engineering (ISTET) [July 16-19, 2017; TU Ilmenau]

    2017

    NachhaltigElektrotechnik und Medientechnik

    Zeitschriftenartikel

    Christian Merz

    Harvesting aus HF

    Elektronik wireless - Fachmedium für Entwicklungen funkbasierter Systeme, no. Oktober, pp. 36-39

    2016

    NachhaltigElektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    Christian Merz, Gerald Kupris

    High Q Impedance Matching for RF Energy Harvesting Applications

    Proceedings of the 2016 IEEE 3rd International Symposium on Wireless Systems within the IEEE International Conferences on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications (IDAACS-SWS) [26-27 September, 2016; Offenburg, Germany]

    2016

    DigitalNachhaltigElektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    Christian Merz, Gerald Kupris

    Improving the Efficiency of RF Energy Harvesting

    Proceedings of Wireless Congress 2015: Systems and Applications (17-18 November, 2015; Munich, Germany)

    2015

    NachhaltigElektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    Christian Merz, Gerald Kupris

    Improving the Efficiency of RF Energy Harvesting

    Proceedings of Wireless Congress 2015: Systems & Applications (09.-10.11.2015, München)

    2015

    NachhaltigElektrotechnik und Medientechnik

    Zeitschriftenartikel

    Christian Merz, Gerald Kupris

    Effizienzsteigerung von Energy Harvesting Schaltungen durch High-Q-Matching

    Bavarian Journal of Applied Sciences, vol. 1, no. 1, pp. 94-104

    2015

    DOI: 10.25929/aqcz-4z34

    Abstract anzeigen

    Unter RF Energy Harvesting versteht man die Gewinnung geringer Energie aus einem elektromagnetischen Feld. Diese Energie kann benutzt werden, um ein kleines Mikrosystem, wie z. B. ein draht- und batterieloses Sensorsystem, zu versorgen. An der Technischen Hochschule Deggendorf ist ein derartiges RF Energy Harvesting System entwickelt und getestet worden. Diese Publikation beschreibt die einzelnen Schaltblöcke des RF Energy Harvesting Systems und zeigt eine explizite Möglichkeit auf, das System zu verbessern. Die Methode beruht auf der Verwendung von Anpassungsnetzwerken mit besonders hoher Güte (High-Q-Matching), welche die Gesamteffizienz von RF Energy Harvesting Systemen erhöhen. Anstatt herkömmliche Induktivitäten und Kapazitäten als Anpassungselemente zu verwenden, werden Elemente mit hoher Güte, wie z. B. Akustische-Oberflächenwellen-Resonatoren, benutzt. Verschiedene High-Q- und Low-Q-Anpassungsnetzwerke werden in dieser Arbeit simuliert und ihre Vor- und Nachteile diskutiert. RF energy harvesting is the extraction of small amounts of energy from an electromagnetic field. This energy can be used to power a tiny microsystem like a wireless and battery-less sensor. At Deggendorf Institute of Technology we have constructed and tested a RF energy harvesting circuit. This paper describes the building blocks of an RF energy harvesting system and explicitly discusses a possibility of improving the system. The method deals with high Q matching circuits that increase the overall efficiency of RF energy harvesting circuits. Instead of common inductive and capacitive matching elements, high Q elements such like surface acoustic wave resonators are used. Different high Q and low Q matching circuits are simulated in the paper and their advantages and disadvantages are discussed.

    DigitalNachhaltigElektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    Christian Merz, Gerald Kupris

    RF Energy Harvesting for Wireless and Battery-less Sensors

    Proceedings of Wireless Congress 2014: Systems and Applications (12-13 November, 2014; Munich, Germany)

    2014

    DigitalNachhaltigElektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    Christian Merz, M. Niedernhuber, Gerald Kupris

    A Low Power Design for Radio Frequency Energy Harvesting Applications

    Proceedings of the 2014 2nd International Symposium on Wireless Systems within the Conferences on Intelligent Data Acquisition and Advanced Computing Systems (IDAACS; 11-12 September, 2014; Offenburg, Germany)

    2014

    Abstract anzeigen

    A new design for a radio frequency (RF) energy harvesting circuit, which enables capturing energy from an electromagnetic far field, is presented in this paper. First, we present the state of the art of common energy harvesting systems. Second, we introduce some important preconsiderations concerning near and far field propagation and how to calculate the expected power at the input of the system. Third, we describe the design of a RF energy harvesting system. The system consists of a quarter-wave monopole antenna, a matching circuit, an energy conversion module, an energy storage capacitor, a low-power comparator and a DC-to-DC converter. The RF energy harvester operates at a frequency band of 868 MHz and creates a pulsed output voltage of about 1.8 V at an input power of at least -6 dBm. The system can be used to power a wireless low-power sensor node. With this approach, a battery-less sensor network is made possible.

    DigitalNachhaltigElektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    Christian Merz, M. Niedernhuber, Gerald Kupris

    Design and Optimization of a Radio Frequency Energy Harvesting System for Energizing Low Power Devices

    Proceedings of the 2014 International Conference on Applied Electronics (9-10 September, 2014; Pilsen, Czech Republic)

    2014

    DOI: 10.1109/AE.2014.7011703

    Abstract anzeigen

    This paper proposes a radio frequency (RF) energy harvesting system which enables scavenging energy from an electromagnetic far field. The system consists of a quarter-wave monopole antenna, a matching circuit, an energy conversion module, an energy storage capacitor, a low-power comparator and a DC-to-DC converter. The RF energy harvester operates at a frequency band of 868 MHz and creates a pulsed output voltage of about 1.8 V at an input power of at least -6 dBm. The system can be used to power a wireless low-power sensor node. With this approach, a battery-less sensor network is made possible.

    DigitalNachhaltigElektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    Christian Merz, M. Niedernhuber, Gerald Kupris

    Speisung von energieautarken Sensorsystemen durch elektromagnetische Felder

    Konferenzband zum 1. Elektronik Power Management Congress (EMC) 2014 (02.-03.07.2014; München), Haar

    2014

    ISBN: 978-3-645-50135-4

    DigitalNachhaltigElektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    Christian Merz, M. Niedernhuber, Gerald Kupris

    Wireless and Battery-less Sensor Using RF Energy Harvesting

    etc2014 - 34. European Telemetry and Test Conference (03.-04.06.2014; Nürnberg), Wunstorf

    2014

    ISBN: 978-3-9813484-7-7

    DOI: 10.5162/etc2014/1.1

    Abstract anzeigen

    The contribution introduces a RF energy harvesting circuit which can be used to power a wireless and battery-less sensor system. The sensor can be powered wirelessly over a distance of about two meters. The basic principles of RF energy harvesting are explained, it is shown how the system can be designed and special considerations are discussed. The proposed RF energy harvesting system operates at a frequency of 866.6 MHz, so that far field propagation is present. The system consists of an antenna, a matching circuit, a RF-to-DC conversion circuit and a power management module, including a storage capacitor, a comparator and a DC-to-DC converter. The harvester produces a pulsed output voltage of 1.8 V at an input power of at least -6 dBm.

    DigitalNachhaltigElektrotechnik und Medientechnik

    Vortrag

    Christian Merz, Gerald Kupris

    Nonlinear Large Signal Analysis of High Q RF Energy Harvesting Circuits

    22nd International Conference on Applied Electronics (AE 2017) [Sep 5-7, 2017; University of West Bohemia, Pilsen, Czech Republic], Pilsen, Tschechische Republik

    DigitalNachhaltigElektrotechnik und Medientechnik

    Vortrag

    Christian Merz, Gerald Kupris

    Efficiency Enhancement of High Q Energy Harvesting Networks

    Wireless Power Congress (WPC) 2017, München

    Elektrotechnik und Medientechnik

    Vortrag

    Christian Merz, Gerald Kupris

    High Q Impedance Matching for RF Energy Harvesting Applications

    2016 IEEE 3rd International Symposium on Wireless Systems within the IEEE International Conferences on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications (IDAACS-SWS), Offenburg

    Elektrotechnik und Medientechnik

    Vortrag

    Christian Merz, Gerald Kupris

    Improving the Efficiency of RF Energy Harvesting

    Wireless Congress 2015: Systems & Applications, München

    Elektrotechnik und Medientechnik

    Vortrag

    Christian Merz, Gerald Kupris

    RF Energy Harvesting for Wireless and Battery-less Sensors

    Wireless Congress 2014: Systems and Applications, München

    Elektrotechnik und Medientechnik

    Vortrag

    Christian Merz, M. Niedernhuber, Gerald Kupris

    A Low Power Design for Radio Frequency Energy Harvesting Applications

    The 2nd IDAACS Symposium Wireless Systems within the IEEE International Conferences on Intelligent Data Acquisition and Advanced Computing Systems 2014: Technology and Applications, Offenburg