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Suche nach „[R.] [Weigel]“ hat 23 Publikationen gefunden
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    NachhaltigAngewandte Naturwissenschaften und WirtschaftsingenieurwesenIPH Teisnach

    Zeitschriftenartikel

    Werner Bogner, Johannes Jakob, R. Weigel, Franz Xaver Röhrl, Stefan Zorn

    Bare die connections via aerosol jet technology for millimeter wave applications

    International Journal of Microwave and Wireless Technologies, vol. 11, no. Special Issue 5-6 (EuMW 2018 Special Issue (Part I)) [June], pp. 441-446

    2019

    DOI: 10.1017/S1759078719000114

    Abstract anzeigen

    This paper presents a comparison of chip connections using aerosol jet (AJ) and bond technology on low-cost printed circuit board (PCB) substrates. First, the behavior of the used gap filler material and the used silver ink for AJ technology on PCBs are characterized. In addition to comparing the radio frequency (RF) performance (DC to 67 GHz) of the two technologies, the mechanical stability is also compared. While the AJ technology transitions score above all for their RF performance and the lower requirements (surface finish, pad size, and adhesion) on the PCB, the bonding technology has clear advantages, especially with a different coefficient of thermal expansion values of the substrates to be connected. Finally, the measurement results of a complete package are shown, whereby the chip connection is realized once by means of AJ and once by bonding wires.

    NachhaltigAngewandte Naturwissenschaften und WirtschaftsingenieurwesenIPH Teisnach

    Beitrag (Sammelband oder Tagungsband)

    Werner Bogner, Johannes Jakob, R. Weigel, Franz Xaver Röhrl, Stefan Zorn

    Bare Die Connections via Aerosol Jet Technology for Millimeter Wave Applications

    Proceedings of the 48th European Microwave Conference (EuMC)/European Microwave Week (EuMW) 2018 (September 24-28, 2018; Madrid, Spain)

    2018

    NachhaltigElektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    Werner Bogner, Johannes Jakob, R. Weigel, U. Hassel, Roman Sammer, Franz Xaver Röhrl, Stefan Zorn

    Cost-Effective SIW Band-Pass Filters for Millimeter Wave Applications

    Proceedings of the 47th European Microwave Conference (EuMC)/European Microwave Week (EuMW) 2017 (October 8-12, 2017, Nürnberg)

    2017

    DOI: 10.23919/EuMC.2017.8230878

    Elektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    G. Fischer, A. Goetz, R. Weigel, R. Rose, Stefan Zorn

    Performance of Coherent Time Delay Estimation Techniques for Frequency Hopping GSM Signals

    Radio Wireless Week (RWW)/Wireless Sensors and Sensor Networks (WiSNet) 2012, Piscataway, NJ

    2012

    ISBN: 978-1-4577-1237-1

    Abstract anzeigen

    In this paper, the performance of coherent time delay estimation techniques for frequency hopping GSM signals is investigated. It is demonstrated that the techniques enable the usage of a substantially higher bandwidth for time delay estimation and localization purposes compared to state-of-the-art techniques. Since resolution and noise performance directly depend on the applied bandwidth of the signals, major improvements can be realized. For E-GSM 900 systems, an overall bandwidth of up to 35 MHz may be used which enables time delay estimation and localization in the scale of a few meters. The coherent time delay estimation techniques are therefore ideally suited for search and rescue applications.

    Elektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    M. Gardill, A. Goetz, R. Weigel, R. Rose, A. Koelpin, Stefan Zorn

    A smart jamming system for UMTS/WCDMA cellular phone networks for search and rescue applications

    IEEE/MTT-S International Microwave Symposium digest (MTT), 2012, Piscataway, NJ

    2012

    ISBN: 978-1-4673-1085-7

    DOI: 10.1109/MWSYM.2012.6257769

    Abstract anzeigen

    Recent statistics show an increase in environmental disasters, a fact which is also perceivable to the public as reports of avalanches, earthquakes and landslides mount in media coverage. This paper introduces one part of the I-LOV project, endorsed by the German Federal Ministry of Education and Research. In this project partners from relief organizations, universities and industry investigate enhancements to disaster handling and victim rescue. One possible option is to take advantage of the fact, that a lot of people own a mobile phone today. To locate a person by his or her mobile phone requires to take over the phone by an own Base Transceiver Station (BTS). Jamming all other networks is one option to achieve that. This paper will introduce a new Field Programmable Gate Array (FPGA) based jamming system which disturbs only the absolute necessary parts of the WCDMA spectrum but reliably cuts all connections between mobile stations (MS) and existing BTS. The whole system including the signal generator and the front end will be discussed. Also measurement results will be shown.

    Elektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    G. Fischer, A. Goetz, R. Weigel, R. Rose, Stefan Zorn

    A Burst Phase Analysis Technique for High Precision Time Delay Estimation of Frequency Hopping GSM Signals

    Asia-Pacific Microwave Conference proceedings (APMC), 2011, Piscataway, NJ

    2011

    ISBN: 978-1-4577-2034-5

    Abstract anzeigen

    In this paper, a novel burst phase analysis technique for high precision time delay estimation of frequency hopping GSM signals is presented. The technique makes use of the increased bandwidth of frequency hopping waveforms and acquires and processes the signals in a coherent way. This way, the actual applicable bandwidth for time delay estimation and localization purposes is increased significantly. In case of E-GSM 900 systems, up to 35MHz of bandwidth can be used which enables localization of mobile phones in the order of a few meters. The technique is therefore ideally suited for search and rescue applications. The presented method may also be applied to TETRA, DECT, IEEE 802.15.4 (ZigBee) or IEEE 802.15.1 (Bluetooth) signals.

    Elektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    G. Fischer, A. Goetz, R. Weigel, R. Rose, Stefan Zorn

    A new technique to improve AoA using dual polarization

    41st European Microwave Conference 2011, [London, UK]

    2011

    ISBN: 978-1-61284-235-6

    Elektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    G. Fischer, A. Goetz, R. Weigel, R. Rose, Stefan Zorn

    A wideband crosscorrelation technique for high precision time delay estimation of frequency hopping GSM signals

    41st European Microwave Conference 2011, [London, UK]

    2011

    ISBN: 978-1-61284-235-6

    Elektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    G. Fischer, A. Goetz, R. Weigel, R. Rose, Stefan Zorn

    A time difference of arrival system architecture for GSM mobile phone localization in search and rescue scenarios

    8th Workshop on Positioning, Navigation and Communication (WPNC), 2011, Piscataway, NJ

    2011

    ISBN: 978-1-4577-0449-9

    Elektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    M. Gardill, R. Weigel, A. Koelpin, Stefan Zorn

    Triggering UMTS user equipment inter-RAT cell reselection using noise jammers

    German Microwave Conference (GeMiC), 2011, Piscataway, NJ

    2011

    ISBN: 978-1-4244-9225-1

    Abstract anzeigen

    In this work a strategy for triggering an interradio access technology cell reselection in UMTS user equipment is proposed. All mobile devices within the effective range of a transmitter radiating a noise-like RF signal on the UMTS downlink frequency bands are forced to leave the UMTS cells and camp on non-UMTS cells, such as e.g., GSM. This allows to use a GSM based localization technique even in areas with UMTS coverage. In contrast to classical RF communication jammers which focus on disrupting the communication link, our exclusive goal is to trigger the inter-RAT cell reselection to GSM. In particular we estimate the necessary jammer RF power by examining the cell reselection procedure running in the user equipment (UE) and using some exemplary geographical scenarios. We use a hardware system to proof the results.

    Elektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    A. Goetz, R. Weigel, R. Rose, Stefan Zorn, C. Meier

    A GSM-network for mobile phone localization in disaster scenarios

    German Microwave Conference (GeMiC), 2011, Piscataway, NJ

    2011

    ISBN: 978-1-4244-9225-1

    Abstract anzeigen

    This paper deals with an adjustment and an implementation of a modified GSM-network. This network is necessary to enable the localization of mobile phones, primarily in disaster scenarios. In order to localize a mobile phone it is mandatory, that the phone transmits a signal. As a mobile phone transmits only sporadically without request, it has to be enforced to send a signal to be localized. The enforcing of a transmission is done by means of bringing up an auxiliary GSM-network. The configuration of the GSM-network allows the usage of a special handover procedure with frequency hopping. The implementation of frequency hopping considerably increases the accuracy of applied localization techniques.

    Elektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    A. Goetz, R. Weigel, R. Rose, A. Koelpin, Stefan Zorn

    A New System for Mobile Phone Localization for Search and Rescue Applications

    Proceedings of the 6th Future Security Research Conference (September 5th - 7th 2011, Berlin), Stuttgart

    2011

    ISBN: 978-3-8396-0295-9

    Elektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    A. Goetz, R. Weigel, R. Rose, A. Koelpin, Stefan Zorn, G. Bozsik

    A power sensor unit for the localization of GSM mobile phones for search and rescue applications

    IEEE Sensors 2011 Conference, [Piscataway, N.J.]

    2011

    ISBN: 978-1-4244-9290-9

    DOI: 10.1109/ICSENS.2011.6127162

    Abstract anzeigen

    Email Print Request Permissions Recent statistics show an increase in environmental disasters, a fact which is also perceivable to the public as reports of avalanches, earthquakes and landslides mount in media coverage. Recent examples are Haiti 2010 and Fukushima 2011. Search and Rescue with modern localization techniques consequently attracts attention from scientific and industrial sides. This paper introduces a field strength measurement unit, which is part of the I-LOV project1. In this project partners from relief organizations, universities, and industry investigate enhancements in disaster handling and victim rescue. One possible option is to take advantage of the fact that most people own a mobile phone today and take it with them the whole day. To locate a person by his or her mobile phone requires to find the maximum of its radiated field strength. This paper will show a new power sensor unit for GSM signals. The complete design flow from requirements considerations to measurement results will be demonstrated. A dynamic range of 107 dB is only one of the remarkable outcomes.

    Elektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    A. Goetz, R. Weigel, M. Maser, R. Rose, Stefan Zorn

    A power saving jamming system for E-GSM900 and DCS1800 cellular phone networks for search and rescue applications

    2011 IEEE Topical Conference on Wireless Sensors and Sensor Networks, Piscataway, NJ

    2011

    ISBN: 978-1-4244-8414-0

    DOI: 10.1109/WISNET.2011.5725020

    Abstract anzeigen

    Recent statistics show an increase in environmental disasters, a fact which is also perceivable to the public as reports of avalanches, earthquakes and landslides mount in media coverage. Search and Rescue with modern localization techniques consequently attracts attention from scientific and industrial sides. This paper introduces one part of the I-LOV project, endorsed by the German Federal Ministry of Education and Research. In this project partners from relief organizations, universities and industry investigate enhancements to disaster handling and victim rescue. One possible option is to take advantage of the fact, that a lot of people own a mobile phone today. To locate a person by his or her mobile phone requires to take over the phone by an own Base Transceiver Station (BTS). Jamming all other networks is one option to achieve that. This paper will introduce a new Field Programmable Gate Array (FPGA) based jamming system which consumes little power and disturbs only small parts of the GSM spectrum but reliably cuts all connections between mobile stations (MS) and existing BTS.

    Elektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    A. Goetz, R. Weigel, R. Rose, Stefan Zorn

    A novel technique for mobile phone localization for search and rescue applications

    2010 International Conference on Indoor Positioning and Indoor Navigation, [Piscataway, N.J.]

    2010

    ISBN: 978-1-4244-5862-2

    DOI: 10.1109/IPIN.2010.5647107

    Abstract anzeigen

    Recent statistics show an increase in environmental disasters, a fact which is also perceivable to the public as reports of avalanches, earthquakes and landslides mount in media coverage. Search and Rescue with modern localization techniques consequently attracts attention from scientific and industrial sides. This paper introduces one part of the I-LOV project, endorsed by the Federal Ministry of Education and Research Germany. Here partners from relief organizations, universities and industry investigate enhancements to disaster handling and victim rescue. One possible option is to take advantage of the fact, that a lot of people own a mobile phone today. Future developments in the area of mobile phone detection by field intensity measurements will be addressed in this paper.

    Elektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    H. Ehm, R. Weigel, Stefan Zorn

    A Novel Technique for Determining Kernels of Volterra Based Behavioral Models for RF Amplifiers

    The 38th European Microwave Conference, London

    2008

    ISBN: 978-2-87487-006-4

    DOI: 10.1109/EUMC.2008.4751434

    Abstract anzeigen

    This paper presents a new technique to determine the kernels of Volterra series based behavioral models of RF amplifiers in the frequency domain. A model with three kernels and a memory length of one is developed. The kernels of this model are assigned only by using a two-tone test. No knowledge of the integrated circuit is needed to determine all model parameters. The derivation of such a model out of well known mathematical basics is shown such as the used measurement setup. Measured data and simulation deliverables are being compared and show a good match. A comparison between a Saleh model and the new modeling approach concludes this paper.

    Elektrotechnik und Medientechnik

    Vortrag

    M. Gardill, R. Weigel, A. Koelpin, Stefan Zorn

    Influencing Cell Reselection of UMTS User Equipment Using Interference Injection

    Workshop

    Workshop on Radar, Communication and Measurement (RADCOM), Hamburg

    Elektrotechnik und Medientechnik

    Vortrag

    A. Goetz, R. Weigel, R. Rose, Stefan Zorn

    Ortung verschütteter Personen anhand ihrer GSM-Mobiltelefone

    RadioTecC – Transmit&TestSolutions 2009, Berlin

    Elektrotechnik und Medientechnik

    Vortrag

    G. Fischer, A. Goetz, R. Weigel, R. Rose, Stefan Zorn

    Algorithms for High Resolution Time Difference of Arrival Estimation for GSM Mobile Phones

    Kleinheubacher Tagung 2011, Miltenberg

    Elektrotechnik und Medientechnik

    Vortrag

    G. Fischer, A. Goetz, R. Weigel, R. Rose, Stefan Zorn

    Ortung von GSM Mobiltelefonen zur Vermissten- und Verschüttetensuche

    Electrical and Electronic Engineering for Communication (EEEfCOM) 2011, Ulm