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  • I. Lau, M. Frank, K. Shi, F. Lurz, A. Talai, R. Weigel, and A. Koelpin, "An Accurate Free Space Method for Material Characterization in W-Band Using Material Samples with Two Different Thicknesses" in European Microwave Conference (EuMC), Madrid, 2019 (to be published). [Bibtex]
    @inproceedings{lau2018a,
    abstract = {This paper presents an accurate free space method for material characterization eliminating the problem
    of the required precise orientation between the material and the antennas and expanding the unambiguous range for electrical thick samples. It includes theoretical considerations and measurement results of four different materials. Overall, a maximum measurement uncertainty of 0.0153 for the relative permittivity and 0.001 for the loss tangent in the W-band can be achieved. Depending on the variation of the material’s thickness, the implemented setup changes lead to an reduction of the measurement uncertainty of 8 to 58%.
    }, author = {Lau, Isabella and Frank, Martin and Shi, Kilin and Lurz, Fabian and Talai, Armin and Weigel, Robert and Koelpin, Alexander}, language = {English}, booktitle = {European Microwave Conference (EuMC)}, cris = {https://cris.fau.de/converis/publicweb/publication/200562733}, year = {2019}, month = {09}, day = {25}, eventdate = {2018-09-25/2018-09-27}, faupublication = {yes}, keywords = {permittivity,dielectric materials,microwave measurement,materials nondestructive testing}, note = {unpublished}, peerreviewed = {automatic}, title = {An Accurate Free Space Method for Material Characterization in W-Band Using Material Samples with Two Different Thicknesses}, type = {Konferenzschrift}, venue = {Madrid}, }
  • J. Rimmelspacher, R. Weigel, A. Hagelauer, and V. Issakov, "LC Tank Differential Inductor-Coupled Dual-Core 60 GHz Push-Push VCO in 45 nm RF-SOI CMOS Technology" in Radio & Wireless Week (RWW): Silicon Monolithic Inegrated Circuits in RF Systems (SiRF), Orlando, FL, USA, 2019 (to be published). [Bibtex]
    @inproceedings{rimmelspacher2019,
    abstract = {This paper presents a 60 GHz dual-core push-push VCO in a 45 nm partially depleted (PD) RF Silicon-on-Insulator (SOI) CMOS technology. The cores are coupled inductively via differential inductors. The best measured phase noise at 1 MHz offset from a 63 GHz carrier is −94.4 dBc/Hz. The wideband continuous frequency-tuning-range (FTR) is 16 %. The DC power dissipation is 76 mW including fundamental 30 GHz and second harmonic (H2) 60 GHz output buffers at 1 V power supply voltage. The measurement results of a reference single-core VCO design proves the relative phase noise improvement of the implemented core-coupling technique. The chip area excluding pads is 0.09 mm2.
    }, author = {Rimmelspacher, Johannes and Weigel, Robert and Hagelauer, Amelie and Issakov, Vadim}, language = {English}, booktitle = {Radio & Wireless Week (RWW): Silicon Monolithic Inegrated Circuits in RF Systems (SiRF)}, cris = {https://cris.fau.de/converis/publicweb/publication/203768203}, year = {2019}, month = {04}, day = {20}, eventdate = {2019-01-20/2019-01-23}, faupublication = {yes}, keywords = {millimeter-wave VCO,wideband,silicon-on-insulator,CMOS technology,System-on-Chip}, note = {unpublished}, peerreviewed = {unknown}, title = {LC Tank Differential Inductor-Coupled Dual-Core 60 GHz Push-Push VCO in 45 nm RF-SOI CMOS Technology}, type = {Konferenzschrift}, venue = {Orlando, FL, USA}, }
  • L. Grebenstein, J. Kirchner, R. Stavracakis Peixoto, W. Zimmermann, F. Irnstorfer, W. Wicke, A. Ahmadzadeh, V. Jamali Kooshkghazi, G. Fischer, R. Weigel, A. Burkovski, and R. Schober, "Biological Optical-to-Chemical Signal Conversion Interface: A Small-scale Modulator for Molecular Communications", IEEE Transactions on Nanobioscience, 2019. [DOI] [Bibtex]
    @article{grebenstein2019,
    abstract = {Although many exciting applications of molecular communication (MC) systems are envisioned to be at microscale, the MC testbeds reported in the literature so far are mostly at macroscale. This may partially be due to the fact that controlling an MC system at microscale is challenging. To link the macroworld to the microworld, we propose and demonstrate a biological signal conversion interface that can also be seen
    as a microscale modulator. In particular, the proposed interface transduces an optical signal, which is controlled using a lightemitting diode (LED), into a chemical signal by changing the pH of the environment. The modulator is realized using Escherichia coli bacteria as microscale entity expressing the light-driven
    proton pump gloeorhodopsin from Gloeobacter violaceus. Upon inducing external light stimuli, these bacteria locally change their surrounding pH level by exporting protons into the environment. To verify the effectiveness of the proposed optical-to-chemical signal converter, we analyze the pH signal measured by a
    pH sensor, which serves as receiver. We develop an analytical parametric model for the induced chemical signal as a function of the applied optical signal. Using this model, we derive a trainingbased channel estimator which estimates the parameters of the proposed model to fit the measurement data based on a least square error approach. We further derive the optimal maximum likelihood detector and a suboptimal low-complexity detector to recover the transmitted data from the measured received signal. It is shown that the proposed parametric model is in good agreement with the measurement data. Moreover, for an example scenario, we show that the proposed setup is able to successfully convert an optical signal representing a sequence of binary symbols into a chemical signal with a bit rate of 1 bit/min and recover the transmitted data from the chemical signal using the proposed estimation and detection schemes. The proposed modulator may form the basis for future MC testbeds and applications at microscale.
    }, author = {Grebenstein, Laura and Kirchner, Jens and Stavracakis Peixoto, Renata and Zimmermann, Wiebke and Irnstorfer, Florian and Wicke, Wayan and Ahmadzadeh, Arman and Jamali Kooshkghazi, Vahid and Fischer, Georg and Weigel, Robert and Burkovski, Andreas and Schober, Robert}, cris = {https://cris.fau.de/converis/publicweb/publication/205157325}, year = {2019}, month = {04}, day = {15}, doi = {10.1109/TNB.2018.2870910}, faupublication = {yes}, issn = {1536-1241}, journaltitle = {IEEE Transactions on Nanobioscience}, keywords = {Diffusive molecular communications; experimental testbed; statistical modeling; E. coli bacteria; light-driven proton pump}, peerreviewed = {Yes}, shortjournal = {IEEE T NANOBIOSCI}, title = {Biological Optical-to-Chemical Signal Conversion Interface: A Small-scale Modulator for Molecular Communications}, type = {Article in Journal}, }
  • R. Ciocoveanu, R. Weigel, A. Hagelauer, and V. Issakov, "A 60 GHz 30.5% PAE Differential Stacked PA with Second Harmonic Control in 45 nm PD-SOI CMOS" in Silicon Monolithic Integrated Circuits in RF Systems (SiRF 2019), Orlando, Florida, USA, 2019. [Bibtex]
    @inproceedings{ciocoveanu2019,
    abstract = {This paper presents a 60GHz highly efficient single-stage differential stacked Class AB power amplifier (PA) with second harmonic control. The circuit has been realized in a 45 nm PD-SOI CMOS technology. Measurement results show that the power amplifier achieves a maximum output power (Pmax) of 15.3dBm with a competitive maximum power-added efficiency (PAEmax) of 30.5% at 60 GHz. The output-referred 1-dB compression point (OP1dB) is 9.5 dBm. Furthermore, the circuit draws 40mA from a 1.8V supply and the chip core size is 0.36mm x 0.35 mm.},
    author = {Ciocoveanu, Radu and Weigel, Robert and Hagelauer, Amelie and Issakov, Vadim},
    language = {English},
    booktitle = {Silicon Monolithic Integrated Circuits in RF Systems (SiRF 2019)},
    cris = {https://cris.fau.de/converis/publicweb/publication/204681005},
    year = {2019},
    month = {03},
    day = {01},
    eventdate = {2019-01-20/2019-01-23},
    faupublication = {yes},
    keywords = {Power Amplifier,High-Power,High-Efficiency,PD-SOI.},
    peerreviewed = {unknown},
    title = {A 60 GHz 30.5% PAE Differential Stacked PA with Second Harmonic Control in 45 nm PD-SOI CMOS},
    type = {Konferenzschrift},
    venue = {Orlando, Florida, USA},
    }
  • J. Fuchs, R. Weigel, and M. Gardill, "Model Order Estimation using a Multi-Layer Perceptron for Direction-of-Arrival Estimation in Automotive Radar Sensors" in WiSNet Wireless Sensors and Sensor Networks, Orlando, Florida, USA, 2019 (to be published). [Bibtex]
    @inproceedings{fuchs2019,
    author = {Fuchs, Jonas and Weigel, Robert and Gardill, Markus},
    booktitle = {WiSNet Wireless Sensors and Sensor Networks},
    cris = {https://cris.fau.de/converis/publicweb/publication/203918515},
    year = {2019},
    month = {01},
    day = {20},
    eventdate = {2019-01-20/2019-01-23},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {unknown},
    title = {Model Order Estimation using a Multi-Layer Perceptron for Direction-of-Arrival Estimation in Automotive Radar Sensors},
    type = {Konferenzschrift},
    venue = {Orlando, Florida, USA},
    }
  • B. Scheiner, F. Lurz, F. Michler, I. Lau, J. Lichtblau, R. Weigel, and A. Koelpin, "Design of a Rotary Coupler for Data Transmission on Fast Rotating Mechanical Shafts and Roboter Arms" in IEEE Radio and Wireless Symposium (RWS), Orlando, FL, USA, 2019 (to be published). [Bibtex]
    @inproceedings{scheiner2019,
    author = {Scheiner, Benedict and Lurz, Fabian and Michler, Fabian and Lau, Isabella and Lichtblau, Johann and Weigel, Robert and Koelpin, Alexander},
    booktitle = {IEEE Radio and Wireless Symposium (RWS)},
    cris = {https://cris.fau.de/converis/publicweb/publication/204085644},
    year = {2019},
    month = {01},
    day = {20},
    eventdate = {2019-01-20/2019-01-23},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {unknown},
    title = {Design of a Rotary Coupler for Data Transmission on Fast Rotating Mechanical Shafts and Roboter Arms},
    type = {Konferenzschrift},
    venue = {Orlando, FL, USA},
    }
  • F. Michler, B. Scheiner, F. Lurz, R. Weigel, and A. Koelpin, "(Micro)metering with Microwaves: A Low-Cost Low-Power High-Precision Radar System", IEEE Microwave Magazine, 2019 (to be published). [DOI] [Bibtex]
    @article{michler2019,
    author = {Michler, Fabian and Scheiner, Benedict and Lurz, Fabian and Weigel, Robert and Koelpin, Alexander},
    cris = {https://cris.fau.de/converis/publicweb/publication/203795705},
    year = {2019},
    month = {01},
    doi = {10.1109/MMM.2018.2875612},
    faupublication = {yes},
    journaltitle = {IEEE Microwave Magazine},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {(Micro)metering with Microwaves: A Low-Cost Low-Power High-Precision Radar System},
    }

COPYRIGHT NOTICE: Copyright and all rights of the material above are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by the appropriate copyright. The material may not be reposted without the explicit permission of the copyright holder.

COPYRIGHT NOTICE FOR IEEE PUBLICATIONS: © IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

COPYRIGHT NOTICE FOR EUMA PUBLICATIONS: © EUMA. Personal use of this material is permitted. Permission from European Microwave Association(EUMA) must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.


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  • F. Lurz, S. Lindner, A. Koelpin, G. Sept-Enzel, P. Dingler, and E. Halder, Elektrisches Messsystem zur Frequenzmessung und Erkennung von Störsignalen und Betriebsverfahren hierfür, 2016. [Bibtex]
    @patent{lurz_patent_2016,
    author = {Lurz, Fabian and Lindner, Stefan and Koelpin, Alexander and Sept-Enzel, Gerold and Dingler, Peter and Halder, Ernst},
    cris = {lurz_patent_2016},
    year = {2016},
    month = {10},
    day = {13},
    number = {DE 102016119562 B3},
    title = {Elektrisches Messsystem zur Frequenzmessung und Erkennung von Störsignalen und Betriebsverfahren hierfür},
    type = {patent},
    }
  • M. Trautmann, B. Sanftl, A. Koelpin, T. Heckel, L. Frey, S. Ditze, A. Endruschat, C. Joffe, A. Rosskopf, and T. Schriefer, System zur drahtlosen Übertragung von Energie und Daten, 2016. [Bibtex]
    @patent{trautmann_patent_2016,
    abstract = {Die Erfindung betrifft ein System zur drahtlosen Übertragung von Energie und Daten, bei dem mindestens zwei in einem Abstand zueinander angeordnete Spulen oder elektrische Leiterbahnen für die Übertragung von Energie vorhanden sind. Dabei ist jeweils mindestens eine elektrische Spule oder elektrische Leiterbahn zur Übertragung von Energie und/oder mindestens eine elektrische Spule oder elektrische Leiterbahn zur Übertragung von Daten an jeweils eine elektrische Wechselspannungsquelle angeschlossen. Dabei ist mindestens eine elektrische Wechselspannungsquelle modulierbar. Die elektrischen Spulen oder elektrischen Leiterbahnen zur Übertragung von Daten sind mit elektrischer Spannung mit einer Frequenz, die kleiner als die Frequenz mit der eine elektrische Spannung zur Übertragung von Energie mittels der elektrischen Spulen oder elektrischen Leiterbahnen zur Übertragung von Energie eingesetzt ist, betrieben.},
    author = {Trautmann, Martin and Sanftl, Benedikt and Koelpin, Alexander and Heckel, Thomas and Frey, Lothar and Ditze, Stefan and Endruschat, Achim and Joffe, Christopher and Rosskopf, Andreas and Schriefer, Thomas},
    cris = {trautmann_patent_2016},
    year = {2016},
    month = {09},
    day = {29},
    keywords = {Inductive Power Transfer},
    number = {102016206767.2},
    title = {System zur drahtlosen Übertragung von Energie und Daten},
    type = {patent},
    }

COPYRIGHT NOTICE: Copyright and all rights of the material above are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by the appropriate copyright. The material may not be reposted without the explicit permission of the copyright holder.

COPYRIGHT NOTICE FOR IEEE PUBLICATIONS: © IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

COPYRIGHT NOTICE FOR EUMA PUBLICATIONS: © EUMA. Personal use of this material is permitted. Permission from European Microwave Association(EUMA) must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.


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  • R. Weigel, ITG-Fellow, Informationstechnischen Gesellschaft (ITG) im VDE, 2018. [Bibtex]
    @prize{weigel_prize_2018b,
    abstract = {Die ITG verleiht den ITG-Fellow für hervorragende wissenschaftliche oder technische Leistungen auf dem Gebiet der Informationstechnik.},
    author = {Weigel, Robert},
    booktitle = {Informationstechnischen Gesellschaft (ITG) im VDE},
    cris = {weigel_prize_2018b},
    year = {2018},
    month = {11},
    day = {05},
    title = {ITG-Fellow},
    type = {20773-Kleiner Preis},
    }
  • F. Michler, APMC 2018 Student Travel Grant, Asia-Pacific Microwave Conference, 2018. [Bibtex]
    @prize{michler_prize_2018b,
    author = {Michler, Fabian},
    booktitle = {Asia-Pacific Microwave Conference},
    cris = {michler_prize_2018b},
    year = {2018},
    month = {11},
    day = {06},
    title = {APMC 2018 Student Travel Grant},
    type = {20773-Kleiner Preis},
    }
  • F. Lurz, Best Oral Talk Prize, Surface Acoustic Wave Sensor & Actuator Symposium (SAW Symposium 2018), 2018. [Bibtex]
    @prize{lurz_prize_2018,
    abstract = {Best Oral Talk Prize for the talk: "Reader Concept for Wireless Resonant Surface Acoustic Wave Instrumentation based on Instantaneous Frequency Measurement"},
    author = {Lurz, Fabian},
    booktitle = {Surface Acoustic Wave Sensor & Actuator Symposium (SAW Symposium 2018)},
    cris = {lurz_prize_2018},
    year = {2018},
    month = {10},
    day = {02},
    title = {Best Oral Talk Prize},
    type = {20773-Kleiner Preis},
    }

COPYRIGHT NOTICE: Copyright and all rights of the material above are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by the appropriate copyright. The material may not be reposted without the explicit permission of the copyright holder.

COPYRIGHT NOTICE FOR IEEE PUBLICATIONS: © IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

COPYRIGHT NOTICE FOR EUMA PUBLICATIONS: © EUMA. Personal use of this material is permitted. Permission from European Microwave Association(EUMA) must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.


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