Research

Most recent projetcs

All Projects…

Most recent awards

  • R. Weigel, 2020 IEEE Microwave Career Award, IEEE Microwave Theory and Techniques Society (MTT-S), 2020. [Bibtex]
    @prize{weigel_prize_2020,
    author = {Weigel, Robert},
    booktitle = {IEEE Microwave Theory and Techniques Society (MTT-S)},
    cris = {weigel_prize_2020},
    year = {2020},
    month = {06},
    day = {24},
    title = {2020 IEEE Microwave Career Award},
    type = {20773-Kleiner Preis},
    }
  • M. Frank, Förderung einer Kongressreise (RWS2020), Deutscher Akademischer Austauschdienst, 2020. [Bibtex]
    @prize{frank_prize_2020,
    author = {Frank, Martin},
    booktitle = {Deutscher Akademischer Austauschdienst},
    cris = {frank_prize_2020},
    year = {2020},
    month = {01},
    day = {28},
    title = {Förderung einer Kongressreise (RWS2020)},
    type = {20773-Kleiner Preis},
    }
  • F. Michler, Förderung einer Kongressreise (WiSNet 2020), Deutscher Akademischer Austauschdienst, 2020. [Bibtex]
    @prize{michler_prize_2020,
    author = {Michler, Fabian},
    booktitle = {Deutscher Akademischer Austauschdienst},
    cris = {michler_prize_2020},
    year = {2020},
    title = {Förderung einer Kongressreise (WiSNet 2020)},
    type = {20773-Kleiner Preis},
    }
  • A. Hagelauer and A. Tag, Preis der ITG, Informationstechnische Gesellschaft im VDE (ITG), 2019. [Bibtex]
    @prize{hagelauer_prize_2019,
    abstract = {Preis der ITG 2019 für die Publikation "Microwave Acoustic Wave Devices: Recent Advances on Architectures, Modeling, Materials, and Packaging"
    }, author = {Hagelauer, Amelie and Tag, Andreas}, booktitle = {Informationstechnische Gesellschaft im VDE (ITG)}, cris = {hagelauer_prize_2019}, year = {2019}, month = {11}, day = {25}, title = {Preis der ITG}, type = {20773-Kleiner Preis}, }
  • S. Erhardt and I. Hussein, EuMW 2019 Student Challenge Prize, European Microwave Week 2019, 2019. [Bibtex]
    @prize{erhardt_prize_2019a,
    author = {Erhardt, Stefan and Hussein, Intikhab},
    booktitle = {European Microwave Week 2019},
    cris = {erhardt_prize_2019a},
    year = {2019},
    month = {10},
    day = {03},
    title = {EuMW 2019 Student Challenge Prize},
    type = {20773-Kleiner Preis},
    }

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All Awards...

Most recent publications

  • S. Schellenberger, K. Shi, J. P. Wiedemann, F. Lurz, R. Weigel, and A. Koelpin, "An Ensemble LSTM Architecture for Clinical Sepsis Detection" in International Conference in Computing in Cardiology 2019, Singapur, 2020 (to be published). [Bibtex]
    @inproceedings{schellenberger2020,
    author = {Schellenberger, Sven and Shi, Kilin and Wiedemann, Jan Philipp and Lurz, Fabian and Weigel, Robert and Koelpin, Alexander},
    booktitle = {International Conference in Computing in Cardiology 2019},
    cris = {https://cris.fau.de/converis/publicweb/publication/229466673},
    year = {2020},
    month = {09},
    day = {08},
    eventdate = {2019-09-08/2019-09-11},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {An Ensemble LSTM Architecture for Clinical Sepsis Detection},
    type = {Journal Article},
    venue = {Singapur},
    }
  • M. Gardill, J. Schwendner, and J. Fuchs, "An Approach to Over-the-air Synchronization of Commercial Chirp-Sequence Automotive Radar Sensors" in 2020 IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNeT), San Antonio, Texas, USA, 2020, pp. 1-4. [Bibtex]
    @inproceedings{gardill2020,
    abstract = {An approach to wireless synchronization between two commercial 77GHz automotive FMCW radar sensors is shown. Our focus is the alignment of a passive listening sensor to a second active transmitting sensor in frequency, time, and waveform modulation parameters, just by observing the signals transmitted from the active sensor. We show that using a combination of inter- and intra-chirpsequence synchronization, the active sensor’s signal can be successfully de-ramped for fast-chirp-sequence waveforms with 275MHz of bandwidth. In addition, we discuss timing requirements and challenges, and characterize the remaining synchronization errors by an analysis of the IF signal data matrix of the de-ramped waveform.},
    author = {Gardill, Markus and Schwendner, Johannes and Fuchs, Jonas},
    language = {English},
    booktitle = {2020 IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNeT)},
    cris = {https://cris.fau.de/converis/publicweb/publication/229092398},
    year = {2020},
    month = {05},
    day = {26},
    eventdate = {2020-01-26/2020-01-29},
    faupublication = {yes},
    pages = {1--4},
    peerreviewed = {unknown},
    title = {An Approach to Over-the-air Synchronization of Commercial Chirp-Sequence Automotive Radar Sensors},
    type = {Konferenzschrift},
    venue = {San Antonio, Texas, USA},
    }
  • F. Michler, K. Shi, S. Schellenberger, T. Lenhard, F. Dassel, B. Scheiner, F. Lurz, R. Weigel, and A. Koelpin, "A Radar-Based Vital Sign Sensing System for In-Bed Monitoring in Clinical Applications" in German Microwave Conference 2020, Cottbus, Germany, 2020 (to be published). [Bibtex]
    @inproceedings{michler2020a,
    author = {Michler, Fabian and Shi, Kilin and Schellenberger, Sven and Lenhard, Thilo and Dassel, Florian and Scheiner, Benedict and Lurz, Fabian and Weigel, Robert and Koelpin, Alexander},
    booktitle = {German Microwave Conference 2020},
    cris = {https://cris.fau.de/converis/publicweb/publication/230252106},
    year = {2020},
    month = {03},
    day = {09},
    eventdate = {2020-03-09/2020-03-11},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {A Radar-Based Vital Sign Sensing System for In-Bed Monitoring in Clinical Applications},
    venue = {Cottbus, Germany},
    }
  • S. Breun, S. Kehl-Waas, and V. Issakov, "Extended Equivalent Circuit Model for Enhanced Substrate Modeling of Three-Port Inductors" in RWW 2020, 2020 (to be published). [Bibtex]
    @inproceedings{breun2020,
    abstract = {This paper presents an extension to the equivalent circuit of a three-port inductor model which enhances the quality factor accuracy by precisely considering the parasitic substrate losses caused by eddy current effects. The proposed equivalent circuit allows to correctly model the broadband frequency dependency of the substrate admittances. Furthermore it is applied to an almost fully analytical extraction procedure and can therefore be used for the generation of scalable inductor models.
    }, author = {Breun, Sascha and Kehl-Waas, Sebastian and Issakov, Vadim}, language = {English}, booktitle = {RWW 2020}, cris = {https://cris.fau.de/converis/publicweb/publication/227024935}, year = {2020}, month = {01}, day = {26}, eventdate = {2020-01-26/2020-01-29}, faupublication = {yes}, note = {unpublished}, peerreviewed = {automatic}, title = {Extended Equivalent Circuit Model for Enhanced Substrate Modeling of Three-Port Inductors}, }
  • T. Reißland, M. Sporer, B. Scheiner, F. Pflaum, A. Hagelauer, R. Weigel, and F. Lurz, "Track-before-Detect Short Range Radar System for Industrial Applications" in IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNet), San Antonio (TX), USA, 2020 (to be published). [Bibtex]
    @inproceedings{reissland2020,
    abstract = {The paper presents a multiplexed short range frequency modulated continuous wave (FMCW) radar sytem and an algorithmic approach for the detection of targets. The algorithm uses a heuristic particle filter to track potential targets before they are actually detected. The detection algorithm is compared to a well known constant false alarm rate (CFAR) detector. The whole setup is tested on real-life data in an industrial scenario.
    }, author = {Reißland, Torsten and Sporer, Michael and Scheiner, Benedict and Pflaum, Felix and Hagelauer, Amelie and Weigel, Robert and Lurz, Fabian}, language = {English}, booktitle = {IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNet)}, cris = {https://cris.fau.de/converis/publicweb/publication/226742496}, year = {2020}, month = {01}, day = {26}, eventdate = {2020-01-26/2020-01-29}, faupublication = {yes}, keywords = {Radar; Detection,Track before Detect,Industrial}, note = {unpublished}, peerreviewed = {automatic}, title = {Track-before-Detect Short Range Radar System for Industrial Applications}, venue = {San Antonio (TX), USA}, }
  • M. Frank, F. Lurz, M. Kempf, J. Röber, R. Weigel, and A. Koelpin, "Miniaturized Ultra-Wideband Antenna Design for Human Implants" in IEEE Radio & Wireless Week 2020, San Antonio, Texas, USA, 2020 (to be published). [Bibtex]
    @inproceedings{frank2020,
    author = {Frank, Martin and Lurz, Fabian and Kempf, Markus and Röber, Jürgen and Weigel, Robert and Koelpin, Alexander},
    language = {English},
    booktitle = {IEEE Radio & Wireless Week 2020},
    cris = {https://cris.fau.de/converis/publicweb/publication/226710795},
    year = {2020},
    month = {01},
    day = {26},
    eventdate = {2020-01-26/2020-01-29},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {Miniaturized Ultra-Wideband Antenna Design for Human Implants},
    type = {Konferenzschrift},
    venue = {San Antonio, Texas, USA},
    }
  • J. Potschka, M. Dietz, K. Kolb, T. Maiwald, D. Ferling, A. Hagelauer, and R. Weigel, "A Tuneable Fully Single-Ended 39 GHz to 28 GHz Gilbert Micromixer for 5G Using Analog Predistortion in a 130 nm BiCMOS Technology (to be published)" in IEEE Radio & Wireless Week (RWW), San Antonio, Texas, USA, 2020. [Bibtex]
    @inproceedings{potschka2020,
    author = {Potschka, Julian and Dietz, Marco and Kolb, Katharina and Maiwald, Tim and Ferling, Dieter and Hagelauer, Amelie and Weigel, Robert},
    language = {English},
    booktitle = {IEEE Radio & Wireless Week (RWW)},
    cris = {https://cris.fau.de/converis/publicweb/publication/227842814},
    year = {2020},
    month = {01},
    day = {26},
    eventdate = {2020-01-26/2020-01-29},
    faupublication = {yes},
    keywords = {Gilbert-Micromixer,Mixer,Reactive-Current-Combining,Tuneable-Mixer,5G},
    peerreviewed = {Yes},
    title = {A Tuneable Fully Single-Ended 39 GHz to 28 GHz Gilbert Micromixer for 5G Using Analog Predistortion in a 130 nm BiCMOS Technology (to be published)},
    type = {Konferenzschrift},
    venue = {San Antonio, Texas, USA},
    }
  • S. Breun, M. Völkel, A. Schrotz, M. Dietz, V. Issakov, and R. Weigel, "A Low-Power 14% FTR Push-Push D-Band VCO in 130 nm SiGe BiCMOS Technology with -178 dBc/Hz FOMT" in RWW 2020, 2020 (to be published). [Bibtex]
    @inproceedings{breun2020a,
    abstract = {This paper presents a low-power wideband push-push voltage controlled oscillator (VCO), achieving a frequency tuning-range (FTR) of 19 GHz (14 %) at a center frequency of 136 GHz. The VCO yields a minimum phase noise of −86.5 dBc/Hz at 1 MHz offset at a power consumption of around 27 mW from a 1.8 V supply, which yields a FOMT of −178 dBc/Hz. The chip is fabricated using a 130 nm SiGe BiCMOS technology with ft/fmax of 250 GHz/370 GHz, respectively, and is integrated with a by-32 divider chain attached to the fundamental output of the VCO, offering a 2.1 GHz output for an external phaselocked loop (PLL).
    }, author = {Breun, Sascha and Völkel, Matthias and Schrotz, Albert-Marcel and Dietz, Marco and Issakov, Vadim and Weigel, Robert}, language = {English}, booktitle = {RWW 2020}, cris = {https://cris.fau.de/converis/publicweb/publication/227024522}, year = {2020}, month = {01}, day = {26}, eventdate = {2020-01-26/2020-01-29}, faupublication = {yes}, note = {unpublished}, peerreviewed = {automatic}, title = {A Low-Power 14% FTR Push-Push D-Band VCO in 130 nm SiGe BiCMOS Technology with -178 dBc/Hz FOMT}, }
  • F. Michler, K. Shi, S. Schellenberger, B. Scheiner, F. Lurz, R. Weigel, and A. Koelpin, "On the Impact of System Nonlinearities in Continuous-Wave Radar Systems for Vital Parameter Sensing" in IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNet), San Antonio, TX, USA, 2020 (to be published). [Bibtex]
    @inproceedings{michler2020,
    author = {Michler, Fabian and Shi, Kilin and Schellenberger, Sven and Scheiner, Benedict and Lurz, Fabian and Weigel, Robert and Koelpin, Alexander},
    language = {English},
    booktitle = {IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNet)},
    cris = {https://cris.fau.de/converis/publicweb/publication/227259366},
    year = {2020},
    month = {01},
    day = {26},
    eventdate = {2020-01-26/2020-01-29},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {On the Impact of System Nonlinearities in Continuous-Wave Radar Systems for Vital Parameter Sensing},
    venue = {San Antonio, TX, USA},
    }
  • S. Heining, F. Michler, B. Scheiner, E. Hassan, A. Koelpin, R. Weigel, and F. Lurz, "An Ultra Broadband Multi-Tone Six-Port Radar for Distance Measurements in K-Band Waveguides" in IEEE Radio and Wireless Symposium, San Antonio, TX, USA, 2020 (to be published). [Bibtex]
    @inproceedings{heining2020,
    author = {Heining, Simon and Michler, Fabian and Scheiner, Benedict and Hassan, Emadeldeen and Koelpin, Alexander and Weigel, Robert and Lurz, Fabian},
    booktitle = {IEEE Radio and Wireless Symposium},
    cris = {https://cris.fau.de/converis/publicweb/publication/226745266},
    year = {2020},
    month = {01},
    day = {26},
    eventdate = {2020-01-26/2020-01-29},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {An Ultra Broadband Multi-Tone Six-Port Radar for Distance Measurements in K-Band Waveguides},
    venue = {San Antonio, TX, USA},
    }
  • S. Erhardt, J. Koller, F. Lurz, A. Koelpin, and R. Weigel, "An Automatic Detection and Data Downlink System for Miniature Bat Loggers" in Radio&Wireless Week 2020, 2020 (to be published). [Bibtex]
    @inproceedings{erhardt2020,
    author = {Erhardt, Stefan and Koller, Josef and Lurz, Fabian and Koelpin, Alexander and Weigel, Robert},
    booktitle = {Radio&Wireless Week 2020},
    cris = {https://cris.fau.de/converis/publicweb/publication/227559614},
    year = {2020},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {An Automatic Detection and Data Downlink System for Miniature Bat Loggers},
    }
  • T. Ehlenz, "Multiphysikalische Betrachtung von Kabeln und Leitungen unter mechanisch-dynamischer Belastung", 2020. [Bibtex]
    @phdthesis{ehlenz2020,
    abstract = {As part of a cooperative doctorate between the Friedrich-Alexander University of Erlangen

    Nuremberg and the University of Applied Sciences Trier, cables and transmission lines that

    users primarily perceive as electrical components have been researched similar to the

    established failure and dimensioning scheme of a machine element. The current work deals

    with the investigation of mechanically stressed cables and lines. Their use should get more

    reliable and the point of time for exchange of permanently moved lines be optimized. Cables

    in moving applications have highly complex electrical and mechanical requirements that are

    currently under-researched or insufficiently standardized. As it is common with other machine

    elements, operating time cannot be calculated. Especially with regard to Industry 4.0,

    unscheduled machine downtimes could become critical. With accelerated aging tests,

    manufacturers and users try to test their products in an increasingly shorter time-to-market.

    They use the alternating bending test, described in DIN EN 50396 to verify the cables’

    conformance. The research shows that the requirements of the standard are insufficiently

    described. After improvements of the test operations, which focused on the reproducibility, the

    alternating bending test defines the starting point of the multiphysical lifetime tests. Based on

    the findings of the parameter studies, a proposed standard for improving the test standard DIN

    EN 50396 was submitted to the responsible parent body. With the multiphysical recording of

    the course of damage during endurance tests, relevant wear patterns for moving lines can be

    identified. They form a novel phase model of the service life of mechanically dynamic loaded

    cables. The investigations show that structural changes and surface roughness of the copper

    material occur under prolonged mechanical stress before fracturing of the probands. Changes

    in the edge regions of the electrical material can be measured, making use of the skin effect. In

    conductors that are carrying high-frequency currents, the current density concentrates at the

    peripheric region of the conductor. An incipient roughness of the conductor leads to a change

    in the attenuation of a signal to be transmitted. In the run-up to empirical experiments,

    corresponding electrodynamical simulations on modelled conductors confirm the assumption.

    They show the increased current density at the peripheric area of a correspondingly aged, rough

    conductor. In subsequent empirical tests, an exchange time of test lines can be detected with insitu

    high-frequency attenuation measurement. The high-frequency measurement is a

    nondestructive, in-situ diagnostic option for mechanical cable wear. The measurement method

    is suitable for the commercial use of a later cable monitoring system, in which lines can be

    evaluated during their operation with regard to estimated remaining lifetime. The research

    results contribute to a predictable product life of the mechanically loaded electrical lines and

    thus to increased reliability in many industries.


    }, author = {Ehlenz, Tobias}, editor = {Shaker}, institution = {FAU Erlangen-Nürnberg}, language = {German}, publisher = {Shaker}, cris = {https://cris.fau.de/converis/publicweb/publication/229732650}, year = {2020}, entrysubtype = {Dissertation}, faupublication = {yes}, keywords = {Cable; Multiphysics; Aging}, peerreviewed = {automatic}, title = {Multiphysikalische Betrachtung von Kabeln und Leitungen unter mechanisch-dynamischer Belastung}, type = {Dissertation}, }

  • B. Scheiner, F. Michler, F. Lurz, R. Weigel, and A. Koelpin, "Nothing Beats SNR: Single-Digit Micrometer Ranging Using a Low-Power CW Radar Featuring a Low-Weight 3D-Printed Horn Antenna", IEEE Microwave Magazine, 2020 (to be published). [DOI] [Bibtex]
    @article{scheiner2020,
    author = {Scheiner, Benedict and Michler, Fabian and Lurz, Fabian and Weigel, Robert and Koelpin, Alexander},
    language = {English},
    cris = {https://cris.fau.de/converis/publicweb/publication/228197395},
    year = {2020},
    doi = {10.1109/MMM.2019.2945150},
    faupublication = {yes},
    journaltitle = {IEEE Microwave Magazine},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {Nothing Beats SNR: Single-Digit Micrometer Ranging Using a Low-Power CW Radar Featuring a Low-Weight 3D-Printed Horn Antenna},
    }
  • E. Hassan, B. Scheiner, F. Michler, M. Berggren, E. Wadbro, F. X. Röhrl, S. Zorn, R. Weigel, and F. Lurz, "Multi-Layer Topology Optimization of Wideband SIW-to-Waveguide Transitions", IEEE Transactions on Microwave Theory and Techniques, 2020 (to be published). [Bibtex]
    @article{hassan2020,
    author = {Hassan, Emadeldeen and Scheiner, Benedict and Michler, Fabian and Berggren, Martin and Wadbro, Eddie and Röhrl, Franz Xaver and Zorn, Stefan and Weigel, Robert and Lurz, Fabian},
    booktitle = {IEEE Transactions on Microwave Theory and Techniques},
    cris = {https://cris.fau.de/converis/publicweb/publication/225573836},
    year = {2020},
    faupublication = {yes},
    journaltitle = {IEEE Transactions on Microwave Theory and Techniques},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {Multi-Layer Topology Optimization of Wideband SIW-to-Waveguide Transitions},
    }
  • J. Potschka, M. Dietz, K. Kolb, T. Maiwald, S. Breun, T. Ackermann, D. Ferling, A. Hagelauer, and R. Weigel, "A Highly Linear and Efficient 28 GHz Stacked Power Amplifier for 5G using Analog Predistortion in a 130 nm BiCMOS Process (to be published)" in IEEE Asia-Pacific Microwave Conference (APMC), Singapore, 2019. [Bibtex]
    @inproceedings{potschka2019a,
    author = {Potschka, Julian and Dietz, Marco and Kolb, Katharina and Maiwald, Tim and Breun, Sascha and Ackermann, Thomas and Ferling, Dieter and Hagelauer, Amelie and Weigel, Robert},
    language = {English},
    booktitle = {IEEE Asia-Pacific Microwave Conference (APMC)},
    cris = {https://cris.fau.de/converis/publicweb/publication/225496208},
    year = {2019},
    month = {12},
    day = {10},
    eventdate = {2019-12-10/2019-12-13},
    faupublication = {yes},
    keywords = {Analog Predistortion; Power Amplifier; 5G},
    peerreviewed = {Yes},
    title = {A Highly Linear and Efficient 28 GHz Stacked Power Amplifier for 5G using Analog Predistortion in a 130 nm BiCMOS Process (to be published)},
    type = {Konferenzschrift},
    venue = {Singapore},
    }
  • R. Ciocoveanu, R. Weigel, A. Hagelauer, and V. Issakov, "A 20.7% PAE 3-Stage 60 GHz Power Amplifier for Radar Applications in 28 nm Bulk CMOS" in European Microwave Week, Paris, France, 2019. [Bibtex]
    @inproceedings{ciocoveanu2019a,
    abstract = {This paper presents a highly efficient 3-stage differential Class-B power amplifier (PA) for short range radar applications, realized in a 28nm bulk CMOS technology. Measurement results show a saturated output power (Psat) of 11.9dBm with a 20.7% power-added efficiency (PAE) at 60 GHz. Moreover, the measurements show that for a frequency range from 57 GHz to 64 GHz, the Psat varies from 10.5dBm to 11.2dBm and the circuit draws 26mA from a 0.9V power supply. Furthermore, the fabricated chip has an area of 0.61mm x 0.31mm including the pads.
    }, author = {Ciocoveanu, Radu and Weigel, Robert and Hagelauer, Amelie and Issakov, Vadim}, language = {English}, booktitle = {European Microwave Week}, cris = {https://cris.fau.de/converis/publicweb/publication/220911836}, year = {2019}, month = {12}, day = {29}, eventdate = {2019-09-29/2019-10-04}, faupublication = {yes}, keywords = {Differential PA,60 GHz,28nm CMOS,High Efficiency.}, peerreviewed = {unknown}, title = {A 20.7% PAE 3-Stage 60 GHz Power Amplifier for Radar Applications in 28 nm Bulk CMOS}, type = {Konferenzschrift}, venue = {Paris, France}, }
  • N. Duda, R. Weigel, and A. Koelpin, "Sensor Enhanced Dual Frequency RSSI Distance Estimation for Low Weight Wireless Sensor Nodes" in 2019 IEEE Asia-Pacific Microwave Conference (APMC) (APMC 2019), Singapur, Singapur, Singapore, 2019 (to be published). [Bibtex]
    @inproceedings{duda2019c,
    author = {Duda, Niklas and Weigel, Robert and Koelpin, Alexander},
    language = {English},
    booktitle = {2019 IEEE Asia-Pacific Microwave Conference (APMC) (APMC 2019)},
    cris = {https://cris.fau.de/converis/publicweb/publication/226956764},
    year = {2019},
    month = {12},
    day = {13},
    eventdate = {2019-12-10/2019-12-13},
    eventtitle = {2019 IEEE Asia-Pacific Microwave Conference (APMC 2019)},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {Yes},
    title = {Sensor Enhanced Dual Frequency RSSI Distance Estimation for Low Weight Wireless Sensor Nodes},
    type = {Konferenzschrift},
    venue = {Singapur, Singapur, Singapore},
    }
  • J. Lichtblau, F. Lurz, B. Sanftl, R. Weigel, and A. Koelpin, "Characterization of the wireless onboard channel during tunnel crossing in high-speed rail traffic" in IMOC 2019, Aveiro, Portugal, 2019 (to be published). [Bibtex]
    @inproceedings{lichtblau2019c,
    author = {Lichtblau, Johann and Lurz, Fabian and Sanftl, Benedikt and Weigel, Robert and Koelpin, Alexander},
    booktitle = {IMOC 2019},
    cris = {https://cris.fau.de/converis/publicweb/publication/227900924},
    year = {2019},
    month = {11},
    day = {11},
    eventdate = {2019-11-10/2019-11-11},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {Characterization of the wireless onboard channel during tunnel crossing in high-speed rail traffic},
    type = {Konferenzschrift},
    venue = {Aveiro, Portugal},
    }
  • F. X. Röhrl, S. Zorn, W. Bogner, F. Sepaintner, and A. Scharl, "Simulation and Manufacturing of Low Loss PCB Structures with Additional Electromagnetic Field in Air" in IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP), Bochum, Germany, 2019, pp. 94-96. [DOI] [Bibtex]
    @inproceedings{roehrl2019a,
    abstract = {This paper presents a new method to produce different kinds of RF waveguides with reduced attenuation on low cost PCB substrates. First, microstrip (MS) and grounded coplanar waveguides (GCPW) are characterized by considering rough conductors in CST Microwave Studio. Next, laminate is partially removed, to increase the electromagnetic field ratio in air. Accordingly, the dielectric losses are reduced and the electrical length is decreased. These conductors are produced by using a CO 2 laserdrilling machine to remove the undesired substrate. The RF performance (DC to 100 GHz) of these waveguides is compared to transmission lines manufactured in conventional PCB technology. Finally, different kinds of simulated and produced microstrip filters are shown and fabrication tolerances are compared to those produced in standard technology.
    }, author = {Röhrl, Franz Xaver and Zorn, Stefan and Bogner, Werner and Sepaintner, Felix and Scharl, Andreas}, editor = {IEEE}, language = {English}, booktitle = {IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)}, cris = {https://cris.fau.de/converis/publicweb/publication/230151038}, year = {2019}, month = {10}, day = {24}, doi = {10.1109/IMWS-AMP.2019.8880079}, eventdate = {2019-07-16/2019-07-18}, faupublication = {no}, keywords = {low loss transmission lines,reduced tolerances,microstrip filters,sequential pre etching (SPE),wet-chemical etching,low cost PCB substrate}, pages = {94--96}, peerreviewed = {Yes}, title = {Simulation and Manufacturing of Low Loss PCB Structures with Additional Electromagnetic Field in Air}, type = {Konferenzschrift}, url = {https://ieeexplore.ieee.org/document/8880079}, venue = {Bochum, Germany}, }
  • U. Stehr, A. Hagelauer, and M. A. Hein, "SiCer: Meeting the Challenges of Tomorrow's Complex Electronic Systems [From the Guest Editors' Desk]", IEEE Microwave Magazine, vol. 20, iss. 10, pp. 26-92, 2019. [DOI] [Bibtex]
    @article{stehr2019,
    author = {Stehr, Uwe and Hagelauer, Amelie and Hein, Matthias A.},
    cris = {https://cris.fau.de/converis/publicweb/publication/226996239},
    year = {2019},
    month = {10},
    day = {01},
    doi = {10.1109/MMM.2019.2928614},
    faupublication = {yes},
    issn = {1527-3342},
    journaltitle = {IEEE Microwave Magazine},
    number = {10},
    pages = {26--92},
    peerreviewed = {unknown},
    shortjournal = {IEEE MICROW MAG},
    title = {SiCer: Meeting the Challenges of Tomorrow's Complex Electronic Systems [From the Guest Editors' Desk]},
    volume = {20},
    }

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