Contact
Room: 43.2.408
Tel.: +49 (0)731 - 50 26210
nicolas.graber(at)uni-ulm.de
M.Sc. Nicolas Graber
Nicolas Graber received his B.Sc. and M.Sc. degrees in Electrical Engineering from the University of Ulm in 2021 and 2024, respectively. For his bachelor thesis and as a student research assistant, he worked on neural interfaces and high-speed delta-sigma ADCs. For his master thesis, he designed and implemented an artifact-tolerant neural recording front-end with direct analog-to-digital conversion.
From April to September 2023, he worked as an analog design intern in the analog and mixed-signal department at Qualcomm Technologies Inc. (Cork, Ireland). In August 2024, he joined the Institute of Microelectronics to pursue his Ph.D. under the supervision of Prof. Dr.-Ing. Maurits Ortmanns. His current research interest is in the field of artifact-tolerant neural recording.
Student theses
[mt] = Master thesis, [rp] = Bachelor thesis
Past theses
- Nick Hertsch
Development of a Performant FPGA-Based ADC Measurement Setup with Live Data Transmission [rp] - Lena Barth
Development of a Central Communication Hub for a Wireless Neural Recording System [rp] - Ilona Roch
Development of a Graphical User Interface for a Wireless Neuromodulation System [rp]
Publications
2026
7.
D. Fritschi,
N. Graber,
A. Kohler,
A. Zanker and
M. Ortmanns,
"A Study on Wireless Power Transfer to Active Stents Using Inductive and Capacitive Coupling",
48th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Toronto, Canada,
Jul.
2026.
6.
D. Fritschi,
N. Graber,
A. Kohler,
A. Zanker and
M. Ortmanns,
"Reducing the Smoothing Capacitor in Implantable Devices by Using Multi-Harmonic Power Coupling",
IEEE Wireless Power Technologies Conference and Expo 2026 (WPTCE 2026), Halifax, Canada,
Jun.
2026.
2025
5.
M. Sporer,
D. Fritschi,
N. Graber,
S. Reich and
M. Ortmanns,
"A Wireless Headstage Based on a 32-Channel Neuromodulator Integrated Circuit",
IEEE International Symposium on Circuits and Systems (ISCAS), London, United Kingdom,
May
2025.
| DOI: | 10.1109/ISCAS56072.2025.11043699 |
2024
4.
M. Sporer,
N. Graber,
M. Mayer,
S. Reich,
T. Stieglitz and
M. Ortmanns,
"An ultra-miniaturized Neural Recording μASIC for the NeuroBus Implant",
IEEE Biomedical Circuits and Systems Conference (BioCAS), Xi'an, China, pp. 1-5,
Dec.
2024.
| DOI: | 10.1109/BioCAS61083.2024.10798303 |
3.
M. Sporer,
I. -. Vasilaș,
A. Adžemović,
N. Graber,
S. Reich,
C. Gueli,
M. Eickenscheidt,
I. Diester,
T. Stieglitz and
M. Ortmanns,
"NeuroBus - Architecture for an Ultra-Flexible Neural Interface",
IEEE Transactions on Biomedical Circuits and Systems ( Early Access ), Pages: 1 - 16,
Jan.
2024.
| DOI: | 10.1109/TBCAS.2024.3354785 |
2023
2.
M. Sporer,
N. Graber,
S. Reich,
C. Gueli,
J. Becker,
T. Stieglitz and
M. Ortmanns,
"NeuroBus – Architecture and Communication Bus for an Ultra-Flexible Neural Interface",
IEEE International Symposium on Circuits and Systems (ISCAS), Monterey, CA, USA,
May
2023.
| DOI: | 10.1109/ISCAS46773.2023.10181816 |
2021
1.
M. Sporer,
N. Graber,
S. Moll,
S. Reich and
M. Ortmanns,
"Implementation of a Low Power Decimation Filter in a 180 nm HV-CMOS Technology for a Neural Recording Front-End",
SMACD / PRIME 2021; International Conference on SMACD and 16th Conference on PRIME, pp. 1-4.,
Jul.
2021.
Research Assistent
Project