@inproceedings{24346,
  author       = {{Scheytt, Christoph}},
  booktitle    = {{System, IC and Integrated Antenna Design for Miniaturized, Millimeter-wave Radar Sensors}},
  title        = {{{Introduction to Integrated mm‐Wave Sensors}}},
  year         = {{2013}},
}

@article{24350,
  abstract     = {{This paper describes the design of D-band phased-array circuits in 0.25 μm technology. The first part describes the design of the passive components which are used in the phased-array systems such as balun, Wilkinson divider and branch-line coupler. A millimeter-wave vector-modulator is designed to support both amplitude and phase control for beam-forming applications. In the second part the designed circuits are integrated together to form a two channel 110-130 GHz phased-array chip. Each channel exhibits 360° phase control with 15 dB of amplitude control range and gain of -10 dB. The entire chip draws 45 mA from 3.3 V supply. The millimeter-wave phase shifting and the low-power consumption makes it ideal for highly integrated scalable beam-forming systems for both imaging and communication.}},
  author       = {{Elkhouly, Mohamed and Glisic, Srdjan and Meliani, Chafik and Ellinger, Frank and Scheytt, Christoph}},
  journal      = {{Microwave Theory and Techniques, IEEE Transactions on}},
  number       = {{99}},
  pages        = {{1--13}},
  title        = {{{220–250-GHz Phased-Array Circuits in 0.13- \mu\hbox m SiGe BiCMOS Technology}}},
  doi          = {{10.1109/TMTT.2013.2258032}},
  volume       = {{PP}},
  year         = {{2013}},
}

@article{24352,
  abstract     = {{This paper analyses substrate-related spurious tones in fractional-N phase-
locked loops with integrated VCOs. Spur positions are calculated and experimentally
verified as a function of the divider ratios of prescaler and programmable divider.
For an integrated wideband PLL in SiGe BiCMOS technology the spur power levels
are measured and compared with theoretical expectations. The power in these spurs is
minimized by layout techniques shielding the reference input buffer. Spur minimization
by using a variable reference frequency is experimentally demonstrated. Based on this
observation, a programmable integer-N PLL for driving the fractional-N synthesizer is
suggested to reduce the worst-case spur level significantly.
Index Terms — Fractional-N, frequency synthesizers, fractional spurs, substrate
spurs, phase-locked loops (PLLs), phase noise.
}},
  author       = {{Osmany, Sabbir Ahmed and Herzel, Frank and Scheytt, Christoph}},
  journal      = {{Analog Integrated Circuits and Signal Processing}},
  number       = {{3}},
  pages        = {{545--556}},
  title        = {{{Analysis and minimization of substrate spurs in fractional-N frequency synthesizers}}},
  doi          = {{10.1007/s10470-012-0002-x}},
  volume       = {{74}},
  year         = {{2013}},
}

@inproceedings{24349,
  abstract     = {{This paper presents the packaging technology and the integrated antenna design for a miniaturized 122-GHz radar sensor. The package layout and the assembly process are shortly explained. Measurements of the antenna including the flip chip interconnect are presented that have been achieved by replacing the IC with a dummy chip that only contains a through-line. Afterwards, radiation pattern measurements are shown that were recorded using the radar sensor as transmitter. Finally, details of the fully integrated radar sensor are given, together with results of the first Doppler measurements.}},
  author       = {{Beer, Stefan and Girma, Mekdes Gebresilassie and Sun, Yaoming and Winkler, Wolfgang and Debski, Wojciech and Paaso, Jaska and Kunkel, Gerhard and Scheytt, Christoph and Hasch, Jürgen and Zwick, Thomas}},
  booktitle    = {{7th EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION}},
  title        = {{{Flip-Chip Package with Integrated Antenna on a Polyimide Substrate for a 122-GHz Bistatic Radar IC}}},
  year         = {{2013}},
}

@article{29341,
  author       = {{Helle, J. and Stroot, T. and Treidler, M. and Westphal, Petra}},
  journal      = {{Deutsche Vereinigung für politische Bildung - NW e.V.: Politisches Lernen}},
  number       = {{3-4}},
  pages        = {{35--39}},
  publisher    = {{Wieland Ulrichs}},
  title        = {{{Mentoring für Lehramtstudierende- ‚Politische, partizipative Bildung in der Lehrerausbildung? }}},
  volume       = {{31}},
  year         = {{2013}},
}

@inproceedings{29491,
  author       = {{Gail, T. and Leyendecker, S. and Ober-Blöbaum, Sina}},
  booktitle    = {{Proceedings of Applied Mathematics and Mechanics}},
  pages        = {{43--44}},
  title        = {{{Computing time investigations for variational multirate integration}}},
  volume       = {{13(1)}},
  year         = {{2013}},
}

@inbook{29419,
  author       = {{Schütze, O. and Witting, K. and Ober-Blöbaum, Sina and Dellnitz, M. and Tantar, Emilia}},
  booktitle    = {{EVOLVE - A Bridge Between Probability, Set Oriented Numerics, and Evolutionary Computation}},
  pages        = {{187--219}},
  publisher    = {{Springer}},
  title        = {{{Set oriented methods for the numerical treatment of multi-objective optimization problems}}},
  year         = {{2013}},
}

@article{20032,
  author       = {{Ober-Blöbaum, Sina and Tao, M. and Cheng, M. and Owhadi, H. and Marsden, J.E.}},
  journal      = {{Journal of Computational Physics}},
  pages        = {{498--530}},
  title        = {{{Variational integrators for electric circuits}}},
  doi          = {{10.1016/j.jcp.2013.02.006}},
  volume       = {{242}},
  year         = {{2013}},
}

@article{29406,
  author       = {{Witting, K. and Ober-Blöbaum, Sina and Dellnitz, M.}},
  journal      = {{Journal of Global Optimization}},
  pages        = {{331--345}},
  title        = {{{A variational approach to define robustness for parametric multiobjective optimization problems}}},
  volume       = {{57(2)}},
  year         = {{2013}},
}

@inbook{29418,
  author       = {{Leyendecker, S. and Ober-Blöbaum, Sina}},
  booktitle    = {{Jean-Claude Samin and Paul Fisette, editors, Multibody Dynamics}},
  pages        = {{97--121}},
  publisher    = {{Springer}},
  title        = {{{A variational approach to multirate integration for constrained systems}}},
  volume       = {{28}},
  year         = {{2013}},
}

@inproceedings{29441,
  author       = {{Flaßkamp, K. and Ober-Blöbaum, Sina and Schneider, T. and Böcker, J. }},
  booktitle    = {{52nd IEEE International Conference on Decision and Control }},
  location     = {{Florence, Italy}},
  pages        = {{7467--7472}},
  title        = {{{Optimal control of a switched reluctance drive by a direct method using a discrete variational principle}}},
  year         = {{2013}},
}

@inproceedings{29443,
  author       = {{Ober-Blöbaum, Sina and Seifried, A. }},
  booktitle    = {{European Control Conference}},
  location     = {{Zurich, Switzerland}},
  pages        = {{204--209}},
  title        = {{{A multiobjective optimization approach for optimal control problems of mechanical systems with uncertainties}}},
  year         = {{2013}},
}

@inproceedings{29442,
  author       = {{Flaßkamp, K. and Murphey, T. and Ober-Blöbaum, Sina}},
  booktitle    = {{European Control Conference}},
  location     = {{Zurich, Switzerland}},
  pages        = {{3179--3184}},
  title        = {{{Discretized switching time optimization problems}}},
  year         = {{2013}},
}

@inproceedings{20028,
  author       = {{Flaßkamp, K. and Ober-Blöbaum, Sina}},
  booktitle    = {{9. Paderborner Workshop Entwurf mechatronischer Systeme}},
  location     = {{Paderborn, Germany}},
  pages        = {{65--78}},
  publisher    = {{Heinz Nixdorf Institut Verlagsschriftreihe}},
  title        = {{{Optimale Steuerungsstrategien für selbstoptimierende mechatronische Systeme mit mehreren Zielkriterien}}},
  year         = {{2013}},
}

@inproceedings{20029,
  author       = {{Heinzemann, C. and Krüger, M. and Schäfer, W. and Trächtler, A. and Flaßkamp, K. and Steenken, D. and Ober-Blöbaum, Sina and Wehrheim, H.}},
  booktitle    = {{9. Paderborner Workshop Entwurf mechatronischer Systeme}},
  location     = {{Paderborn, Germany}},
  pages        = {{177--190}},
  publisher    = {{Heinz Nixdorf Institut Verlagsschriftreihe}},
  title        = {{{Sichere Konvoibildung mit Hilfe optimaler Bremsprofile}}},
  year         = {{2013}},
}

@inproceedings{29447,
  author       = {{Specht, A. and Ober-Blöbaum, Sina and Wallscheid, O. and Romaus, C. and Böcker, J. }},
  booktitle    = {{IEEE International Electric Machines & Drives Conference (IEMDC)}},
  pages        = {{1411--1417}},
  title        = {{{Discretetime model of an IPMSM based on variational integrators}}},
  year         = {{2013}},
}

@inproceedings{29446,
  author       = {{Ringkamp, M. and Ober-Blöbaum, Sina and Leyendecker, S.}},
  booktitle    = {{ECCOMAS Thematic Conference on Multibody Dynamics}},
  title        = {{{A numerical approach to multiobjective optimal control of multibody dynamics}}},
  year         = {{2013}},
}

@inproceedings{29444,
  author       = {{Demoures, F.  and Gay-Balmaz, F.  and Leitz, T. and Leyendecker, S.  and Ober-Blöbaum, Sina and Ratiu, T.S. }},
  booktitle    = {{Proceedings of Applied Mathematics and Mechanics}},
  pages        = {{45--46}},
  title        = {{{Asynchronous variational Lie group integration for geometrically exact beam dynamics}}},
  volume       = {{13(1)}},
  year         = {{2013}},
}

@inproceedings{29492,
  author       = {{Ringkamp, M. and Leyendecker, S. and Ober-Blöbaum, Sina}},
  booktitle    = {{Proceedings of Applied Mathematics and Mechanics}},
  pages        = {{27--28}},
  title        = {{{Multiobjective optimal control of a four-body kinematic chain}}},
  volume       = {{13(1)}},
  year         = {{2013}},
}

@inproceedings{29445,
  author       = {{Gail, T.  and Leyendecker, S.  and Ober-Blöbaum, Sina}},
  booktitle    = {{Proceedings of Applied Mathematics and Mechanics}},
  pages        = {{43--44}},
  title        = {{{Computing time investigations of variational multirate systems}}},
  volume       = {{13(1)}},
  year         = {{2013}},
}