Six-Port Receiver Analog Front-End: Multilayer Design and System Simulation. - Sebastian M. Winter; Alexander Koelpin; Robert Weigel (IEEE Trans. Circuits Syst. II Express Briefs, 2008)

Signal processing strategies for six-port based Direction of Arrival detector systems. - Francesco Barbon; Gabor Vinci; Stefan Lindner; Robert Weigel; Alexander Koelpin (SSD, 2012)

Design and implementation of a fixed-point radix-4 FFT optimized for local positioning in wireless sensor networks. - Alban Ferizi; Bernhard Hoeher; Melanie Jung; Georg Fischer 001; Alexander Koelpin (SSD, 2012)

The six-port technology: A low-cost concept for precise position measurements. - Alexander Kölpin; Gabor Vinci; Francesco Barbon; Stefan Lindner; Georg Fischer 001; Robert Weigel (SSD, 2012)

Filter design aspects in analog receiver front-ends for frequency scanning applications. - Gunther Dehm-Andone; Raphael Mzyk; Frank Hausknecht; Georg Fischer 001; Robert Weigel; Alexander Koelpin (ISSSE, 2012)

An area-efficient 130 nm CMOS baseband processing unit for 24 GHz FMCW radar positioning. - Alban Ferizi; Philipp Baust; Melanie Jung; Georg Fischer 001; Robert Weigel; Alexander Koelpin (ISSSE, 2012)

A 77 GHz direction of arrival detector system with SiGe integrated six-port receiver. - Gabor Vinci; Benjamin Laemmle; Francesco Barbon; Robert Weigel; Alexander Koelpin (RWS, 2012)

The enhanced six-port architecture: A measurement based proof of concept. - Alexander Koelpin; Stefan Lindner; Gabor Vinci; Benjamin Laemmle; Robert Weigel (WiSNet, 2012)

A 77-GHz SiGe Integrated Six-Port Receiver Front-End for Angle-of-Arrival Detection. - Benjamin Laemmle; Gabor Vinci; Linus Maurer; Robert Weigel; Alexander Koelpin (IEEE J. Solid State Circuits, 2012)

A Review and Comparative Study of On- and Off-Body Performance of Platform-Tolerant UHF RFID Tag Antennas. - Markus Gardill; Klaus Finkenzeller; Walter Hinz; Georg Fischer 001; Robert Weigel; Alexander Koelpin (BODYNETS, 2013)

Design of a robust and low-cost monocone antenna element for use in vehicle roof-mounted antenna arrays. - Markus Gardill; Georg Fischer 001; Robert Weigel; Alexander Koelpin (RWS, 2013)

A high performance line filter for narrowband power line communication testbed applications. - Steffen Mueller; Fabian Lurz; Robert Weigel; Alexander Koelpin (SmartGridComm, 2013)

A Compact, Versatile Six-Port Radar Module for Industrial and Medical Applications. - Sarah Linz; Gabor Vinci; Sebastian Mann; Stefan Lindner; Francesco Barbon; Robert Weigel; Alexander Koelpin (J. Electr. Comput. Eng., 2013)

Numerical investigations on the quasi-stationary response of antennas to wideband LFMCW excitation. - Markus Gardill; Dennis Kay; Robert Weigel; Alexander Koelpin (EUSIPCO, 2014)

Fast in-situ diode detector characterization for Six-Port interferometer receivers. - Francesco Barbon; Stefan Lindner; Sebastian Mann; Sarah Linz; Robert Weigel; Alexander Koelpin (WiSNet, 2014)

A tank level sensor based on Six-Port technique comprising a quasi-TEM waveguide. - Sebastian Mann; Stefan Lindner; Francesco Barbon; Sarah Linz; Armin Talai; Robert Weigel; Alexander Koelpin (WiSNet, 2014)

System and signal design for an energy-efficient multi-frequency localization system. - Thorsten Nowak; Martin Hierold; Alexander Koelpin; Markus Hartmann; Hans-Martin Troger; Jörn Thielecke (WiSNet, 2014)

Water temperature measurement by microwave six-port interferometry at 24 GHz. - Armin Talai; Sebastian Mann; Robert Weigel; Alexander Koelpin (WiSNet, 2014)

Multiport Technology: New Perspectives and Applications. - Serioja Ovidiu Tatu; Adriana Serban; Alexander Koelpin; Mohamed Helaoui (J. Electr. Comput. Eng., 2014)

Protocol design for ultra-low power wake-up systems for tracking bats in the wild. - Falko Dressler; Bastian Bloessl; Martin Hierold; Chia-Yu Hsieh; Thorsten Nowak; Robert Weigel; Alexander Koelpin (ICC, 2015)

Intelligent signal processing routine for instantaneous heart rate detection using a Six-Port microwave interferometer. - Christoph Will; Kilin Shi; Fabian Lurz; Robert Weigel; Alexander Koelpin (ISPACS, 2015)

A low power 24 GHz radar system for occupancy monitoring. - Fabian Lurz; Sebastian Mann; Sarah Linz; Stefan Lindner; Francesco Barbon; Robert Weigel; Alexander Koelpin (RWS, 2015)

Low-weight wireless sensor network for encounter detection of bats. - Martin Hierold; Simon Ripperger; Darija Josic; Frieder Mayer; Robert Weigel; Alexander Koelpin (WiSNet, 2015)

ADC depending limitations for Six-Port based distance measurement systems. - Stefan Lindner; Francesco Barbon; Sarah Linz; Fabian Lurz; Sebastian Mann; Robert Weigel; Alexander Koelpin (WiSNet, 2015)

100 GHz reflectometer for sensitivity analysis of MEMS sensors comprising an intermediate frequency Six-port receiver. - Sarah Linz; Florian Oesterle; Armin Talai; Stefan Lindner; Sebastian Mann; Francesco Barbon; Robert Weigel; Alexander Koelpin (WiSNet, 2015)

Diode detector design for 61 GHz substrate integrated waveguide Six-Port radar systems. - Sebastian Mann; Stefan Erhardt; Stefan Lindner; Fabian Lurz; Sarah Linz; Francesco Barbon; Robert Weigel; Alexander Koelpin (WiSNet, 2015)

Combined localization and data transmission in energy-constrained wireless sensor networks. - Thorsten Nowak; Alexander Koelpin; Falko Dressler; Markus Hartmann; Lucila Patino; Jörn Thielecke (WiSNet, 2015)

Underwater interferometric radar sensor for distance and vibration measurement. - Michael Sporer; Fabian Lurz; Eberhard Schlücker; Robert Weigel; Alexander Koelpin (WiSNet, 2015)

Precise and fast frequency determination of resonant SAW sensors by a low-cost Six-Port interferometer. - Fabian Lurz; Stefan Lindner; Sebastian Mann; Sarah Linz; Robert Weigel; Alexander Koelpin (I2MTC, 2016)

A low-cost laser barrier based vectorial velocity measurement system. - Stefan Lindner; Robert Weigel; Alexander Koelpin (IEEE SENSORS, 2016)

Robust beamforming for SWIPT systems with non-linear energy harvesting model. - Elena Boshkovska; Alexander Koelpin; Derrick Wing Kwan Ng; Nikola Zlatanov; Robert Schober (SPAWC, 2016)

Low-weight wireless sensor node for animal encounter detection and dual-band localization. - Martin Hierold; Markus Hartmann; Simon Ripperger; Frieder Mayer; Albert Heuberger; Robert Weigel; Alexander Koelpin (WiSNet, 2016)

Digital phase correction for multiplexed ADCs in low-cost Six-Port interferometers. - Fabian Lurz; Christian Dorn; Stefan Lindner; Sarah Linz; Sebastian Mann; Robert Weigel; Alexander Koelpin (WiSNet, 2016)

Substrate integrated waveguide fed antenna for 61 GHz ultra-short-range interferometric radar systems. - Sebastian Mann; Fabian Lurz; Sarah Linz; Stefan Lindner; Christoph Will; S. Wibbing; Robert Weigel; Alexander Koelpin (WiSNet, 2016)

Improved calibration procedure for six-port based precise displacement measurements. - Kamil Staszek; Sarah Linz; Fabian Lurz; Sebastian Mann; Robert Weigel; Alexander Koelpin (WiSNet, 2016)

Implementation of simultaneous energy and data transfer in a contactless connector. - Martin Trautmann; Christopher Joffe; Felix Pflaum; Benedikt Sanftl; Robert Weigel; Thomas Heckel; Alexander Koelpin (WiSNet, 2016)

Progress of Six-Port technology for industrial radar applications. - Gabor Vinci; Alexander Koelpin (WiSNet, 2016)

Instantaneous heartbeat detection using a cross-correlation based template matching for continuous wave radar systems. - Christoph Will; Kilin Shi; Fabian Lurz; Robert Weigel; Alexander Koelpin (WiSNet, 2016)

From radio telemetry to ultra-low-power sensor networks: tracking bats in the wild. - Falko Dressler; Simon Ripperger; Martin Hierold; Thorsten Nowak; Christopher Eibel; Björn Cassens; Frieder Mayer; Klaus Meyer-Wegener; Alexander Koelpin (IEEE Commun. Mag., 2016)

Pulse plated silver metallization on porosified LTCC substrates for high frequency applications. - Frank Steinhäußer; Armin Talai; Gabriela Sandulache; Robert Weigel; Alexander Koelpin; Wolfgang Hansal; Achim Bittner; Ulrich Schmid 002 (Microelectron. Reliab., 2016)

Six-Port Based Interferometry for Precise Radar and Sensing Applications. - Alexander Koelpin; Fabian Lurz; Sarah Linz; Sebastian Mann; Christoph Will; Stefan Lindner (Sensors, 2016)

Dimensioning and comparison of common compensation topologies for IPT systems. - Martin Trautmann; Marius Ohlendorf; Benedikt Sanftl; Robert Weigel; Alexander Koelpin (ISCAS, 2017)

A direct RF-to-baseband quadrature subsampling receiver using a low cost ADC. - Matthias Haberl; Benedikt Sanftl; Martin Trautmann; Robert Weigel; Alexander Koelpin (RWS, 2017)

SDR implementation of an adaptive low-latency IEEE 802.11p transmitter system for real-time wireless applications. - Matej Kloc; Robert Weigel; Alexander Koelpin (RWS, 2017)

Detector nonlinearity in Six-port radar. - Sarah Linz; Christoph Will; Fabian Lurz; Stefan Lindner; Sebastian Mann; Robert Schober; Robert Weigel; Alexander Koelpin (WiSNet, 2017)

RSSI-based localization with minimal infrastructure using multivariate statistic techniques. - Felix Pflaum; Stefan Erhardt; Robert Weigel; Alexander Koelpin (WiSNet, 2017)

Segmental polynomial approximation based phase error correction for precise near field displacement measurements using Six-Port microwave interferometers. - Christoph Will; Sarah Linz; Sebastian Mann; Fabian Lurz; Stefan Lindner; Robert Weigel; Alexander Koelpin (WiSNet, 2017)

Robust Resource Allocation for MIMO Wireless Powered Communication Networks Based on a Non-Linear EH Model. - Elena Boshkovska; Derrick Wing Kwan Ng; Nikola Zlatanov; Alexander Koelpin; Robert Schober (IEEE Trans. Commun., 2017)

High-Speed Resonant Surface Acoustic Wave Instrumentation Based on Instantaneous Frequency Measurement. - Fabian Lurz; Stefan Lindner; Sarah Linz; Sebastian Mann; Robert Weigel; Alexander Koelpin (IEEE Trans. Instrum. Meas., 2017)

Detecting Respiratory Effort-Related Arousals in Polysomnographic Data Using LSTM Networks. - Sven Schellenberger; Kilin Shi; Melanie Mai; Jan Philipp Wiedemann; Tobias Steigleder; Björn M. Eskofier; Robert Weigel; Alexander Koelpin (CinC, 2018)

Contactless person identification using cardiac radar signals. - Kilin Shi; Christoph Will; Robert Weigel; Alexander Koelpin (I2MTC, 2018)

Design and characterization of antenna arrays in eWLB package for 61 GHz radar applications. - Martin Frank; Pol Ghesquière; Stefan Kiefl; Robert Weigel; Alexander Koelpin (RWS, 2018)

Examination of OFDM for wireless train-onboard communication. - Johann Lichtblau; Benedikt Sanftl; Fabian Lurz; Robert Weigel; Alexander Koelpin (RWS, 2018)

Fully integrated remote radio head and improved data transmission for inductive power transfer systems. - Benedikt Sanftl; Martin Trautmann; Robert Weigel; Alexander Koelpin (RWS, 2018)

Microstrip-to-waveguide transition in planar form using a substrate integrated waveguide. - Benedict Scheiner; Sebastian Mann; Fabian Lurz; Fabian Michler; Stefan Erhardt; Stefan Lindner; Robert Weigel; Alexander Koelpin (RWS, 2018)

A contactless system for continuous vital sign monitoring in palliative and intensive care. - Kilin Shi; Christoph Will; Tobias Steigleder; Fabian Michler; Robert Weigel; Christoph Ostgathe; Alexander Koelpin (SysCon, 2018)

Real-time GSM broadcast receiver on a Cortex-M4 microcontroller. - Stefan Erhardt; Felix Pflaum; Robert Weigel; Alexander Koelpin (WiSNet, 2018)

Low-power frequency synthesizer for multi-tone six-port radar. - Fabian Lurz; Patrick Hofstetter; Stefan Lindner; Sarah Linz; Fabian Michler; Robert Weigel; Alexander Koelpin (WiSNet, 2018)

Ultra-low-power sensor node with wake-up-functionality for smart-sensor-applications. - Felix Pflaum; Robert Weigel; Alexander Koelpin (WiSNet, 2018)

BATS: Adaptive Ultra Low Power Sensor Network for Animal Tracking. - Niklas Duda; Thorsten Nowak; Markus Hartmann; Michael Schadhauser; Björn Cassens; Peter Wägemann; Muhammad Nabeel; Simon Ripperger; Sebastian Herbst; Klaus Meyer-Wegener; Frieder Mayer; Falko Dressler; et al. (Sensors, 2018)

Reader Architectures for Wireless Surface Acoustic Wave Sensors. - Fabian Lurz; Thomas Ostertag; Benedict Scheiner; Robert Weigel; Alexander Koelpin (Sensors, 2018)

An Ensemble LSTM Architecture for Clinical Sepsis Detection. - Sven Schellenberger; Kilin Shi; Jan Philipp Wiedemann; Fabian Lurz; Robert Weigel; Alexander Koelpin (CinC, 2019)

Wireless Sensor Platform for Detection of Vital Parameters of Bats. - Niklas Duda; Simon Ripperger; Marco Tschapka; Frieder Mayer; Robert Weigel; Alexander Koelpin (EMBC, 2019)

Respiration Extraction from Radar Heart Sound Measurements. - Sven Schellenberger; Kilin Shi; Fabian Michler; Fabian Lurz; Robert Weigel; Alexander Koelpin (EMBC, 2019)

Segmentation of Radar-Recorded Heart Sound Signals Using Bidirectional LSTM Networks. - Kilin Shi; Sven Schellenberger; Leon Weber; Jan Philipp Wiedemann; Fabian Michler; Tobias Steigleder; Anke Malessa; Fabian Lurz; Christoph Ostgathe; Robert Weigel; Alexander Koelpin (EMBC, 2019)

Bursting: Increasing Energy Efficiency of Erasure-Coded Data in Animal-Borne Sensor Networks. - Björn Cassens; Markus Hartmann; Thorsten Nowak; Niklas Duda; Jörn Thielecke; Alexander Kölpin; Rüdiger Kapitza (EWSN, 2019)

122 GHz Low-cost Substrate Integrated Waveguide based Leaky-Wave Antenna Design. - Martin Frank; Fabian Lurz; Robert Weigel; Alexander Koelpin (RWS, 2019)

Measurements for Onboard Communication in a High-Speed Train up to 330 km/h for Selected Scenarios at 2.45 GHz. - Johann Lichtblau; Fabian Lurz; Robert Weigel; Alexander Koelpin (RWS, 2019)

Phased Array Approach for Vehicle-to-Infrastructure Communication in Train Stations. - Johann Lichtblau; Fabian Michler; Benedict Scheiner; Fabian Lurz; Martin Graebner; Mira Hundhausen; Robert Weigel; Alexander Koelpin (RWS, 2019)

Extended Ellipse-based Reconstruction Algorithm for Six-port Radar. - Sarah Linz; Fabian Lurz; Robert Weigel; Alexander Koelpin (RWS, 2019)

Pulse Wave Velocity Detection Using a 24 GHz Six-Port Based Doppler Radar. - Fabian Michler; Kilin Shi; Sven Schellenberger; Benedict Scheiner; Fabian Lurz; Robert Weigel; Alexander Koelpin (RWS, 2019)

Design of a Rotary Coupler for Data Transmission on Fast Rotating Mechanical Shafts and Roboter Arms. - Benedict Scheiner; Fabian Lurz; Fabian Michler; Isabella Lau; Johann Lichtblau; Robert Weigel; Alexander Koelpin (RWS, 2019)

Synchronization Approaches and Improvements for a Low-Complexity Power Line Communication System. - Torsten Reissland; Matthias Kuba; Joerg Robert; Alexander Koelpin; Robert Weigel; Fabian Lurz (SmartGridComm, 2019)

Non-Invasive Low Power ECG for Heart Beat Detection of Bats. - Niklas Duda; Alexander Barthule; Simon Ripperger; Frieder Mayer; Robert Weigel; Alexander Koelpin (WiSNet, 2019)

A Small and Lightweight Ultra-Low Power GSM Cell Tracker. - Stefan Erhardt; Robert Weigel; Alexander Koelpin (WiSNet, 2019)

Compressed Sensing Based Near-Field Radar Target Imaging and Localization Employing Normalized Iterative Hard Thresholding. - Torsten Reissland; Fabian Lurz; Robert Weigel; Alexander Koelpin (WiSNet, 2019)

A Clinically Evaluated Interferometric Continuous-Wave Radar System for the Contactless Measurement of Human Vital Parameters. - Fabian Michler; Kilin Shi; Sven Schellenberger; Tobias Steigleder; Anke Malessa; Laura Hameyer; Nina Neumann; Fabian Lurz; Christoph Ostgathe; Robert Weigel; Alexander Koelpin (Sensors, 2019)

Automatic non-contact monitoring of the respiratory rate of neonates using a structured light camera. - Johanna Gleichauf; Christine Niebler; Alexander Koelpin (EMBC, 2020)

An Automatic Detection and Data Downlink System for Miniature Bat Loggers. - Stefan Erhardt; Josef Koller; Fabian Lurz; Robert Weigel; Alexander Koelpin (RWS, 2020)

Miniaturized Ultra-Wideband Antenna Design for Human Implants. - Martin Frank; Fabian Lurz; Markus Kempf; Jürgen Röber; Robert Weigel; Alexander Koelpin (RWS, 2020)

An Ultra Broadband Multi-Tone Six-Port Radar for Distance Measurements in K-Band Waveguides. - Simon Heining; Fabian Michler; Benedict Scheiner; Emadeldeen Hassan; Alexander Koelpin; Robert Weigel; Fabian Lurz (RWS, 2020)

Low-Cost Direction-of-Arrival Measurements using Multiplexed Antenna Switching. - Christian Dorn; Stefan Erhardt; Robert Weigel; Alexander Koelpin; Fabian Lurz (WiSNet, 2020)

On the Impact of System Nonlinearities in Continuous-Wave Radar Systems for Vital Parameter Sensing. - Fabian Michler; Kilin Shi; Sven Schellenberger; Benedict Scheiner; Fabian Lurz; Robert Weigel; Alexander Koelpin (WiSNet, 2020)

Universal low-cost Transmitarray Antenna Design at 61 GHz for Beam Steering with different Feed Antennas. - Martin Frank; Fabian Lurz; Robert Weigel; Alexander Koelpin (WSA, 2020)

Continuous In-Bed Monitoring of Vital Signs Using a Multi Radar Setup for Freely Moving Patients. - Sven Schellenberger; Kilin Shi; Fabian Michler; Fabian Lurz; Robert Weigel; Alexander Koelpin (Sensors, 2020)

Automatic Signal Quality Index Determination of Radar-Recorded Heart Sound Signals Using Ensemble Classification. - Kilin Shi; Sven Schellenberger; Fabian Michler; Tobias Steigleder; Anke Malessa; Fabian Lurz; Christoph Ostgathe; Robert Weigel; Alexander Koelpin (IEEE Trans. Biomed. Eng., 2020)

Multibeam antenna array and software switching for low-complexity low-cost GNSS beamforming. - Nabanita Sengupta; Johannes Rossouw van der Merwe; Alexander Koelpin; Alexander Rügamer; Matthias Kuhl; Wolfgang Felber (ICL-GNSS, 2021)

Mitigation of Coloured Impulsive noise in OFDM receiver. - Sebastian Schaffenroth; Hans-Peter Schmidt; Alexander Kölpin (ISPLC, 2021)

Low-Cost Six-Port for High-Volume Frequency Measurement Systems in the 2.4 GHz ISM-Band. - Benedict Scheiner; Florian Probst; Fabian Michler; Robert Weigel; Alexander Koelpin; Fabian Lurz (WiSNet, 2021)

Automated Non-Contact Respiratory Rate Monitoring of Neonates Based on Synchronous Evaluation of a 3D Time-of-Flight Camera and a Microwave Interferometric Radar Sensor. - Johanna Gleichauf; Sven Herrmann; Lukas Hennemann; Hannes Krauss; Janina Nitschke; Philipp Renner; Christine Niebler; Alexander Koelpin (Sensors, 2021)

Miniaturized Hybrid Frequency Reader for Contactless Measurement Scenarios Using Resonant Surface Acoustic Wave Sensors. - Benedict Scheiner; Florian Probst; Fabian Michler; Robert Weigel; Alexander Koelpin; Fabian Lurz (Sensors, 2021)

Influence of Sensor Position and Body Movements on Radar-Based Heart Rate Monitoring. - Liv Herzer; Annika Muecke; Robert Richer; Nils C. Albrecht; Markus Heyder; Katharina M. Jäger; Veronika Koenig; Alexander Koelpin; Nicolas Rohleder; Bjoern M. Eskofier (BHI, 2022)

A Lightweight Robust Approach for Automatic Heart Murmurs and Clinical Outcomes Classification from Phonocardiogram Recordings. - Hui Lu; Julia Beatriz Yip; Tobias Steigleder; Stefan Grießhammer; Maria Heckel; Naga Venkata Sai Jitin Jami; Bjoern M. Eskofier; Christoph Ostgathe; Alexander Koelpin (CinC, 2022)

Measurement setup for industrial communication techniques under electromagnetic interference. - Sebastian Schaffenroth; Hans-Peter Schmidt; Alexander Kölpin (SAS, 2022)

Experimental analysis of frequency inverter noise on single pair Ethernet communication. - Sebastian Schaffenroth; Hans-Peter Schmidt; Alexander Kölpin (WFCS, 2022)

Influence of Self-Interference in a Radar System for a Correlation Based True-Speed-Over-Ground Estimation Approach. - Torsten Reissland; Fabian Michler; Robert Weigel; Alexander Koelpin; Fabian Lurz (WiSNet, 2022)

Phase Noise Measurements for L-Band Applications at Attosecond Resolution. - Louise Springer; Frank Ludwig; Uros Mavric; Volodymyr Vasylyuk; Heinrich Pryschelski; Matthias Hoffmann; Holger Schlarb; Alexander Kölpin; Arne F. Jacob (IEEE Trans. Instrum. Meas., 2022)

Long-Distance Heart Sound Detection using 122 GHz CW Radar with 3D Printed High-Gain Antennas. - Nils C. Albrecht; Markus Heyder; Marvin Wenzel; Dominik Langer; Hui Lu; Alexander Koelpin (RWS, 2023)

Accurate Heart Beat Detection with Doppler Radar using Bidirectional GRU Network. - Hui Lu; Markus Heyder; Marvin Wenzel; Nils C. Albrecht; Dominik Langer; Alexander Koelpin (RWS, 2023)

Theoretical Limits and Interpolation based Improvements of a Correlation Based True-Speed-Over-Ground Estimation. - Torsten Reissland; Robert Weigel; Alexander Koelpin; Fabian Lurz (WiSNeT, 2023)

A novel method for determining the degree of hydrogen loading of LOHC using cavity based permittivity measurements. - Nico Weiss; Alexander Koelpin; Irina Wiemann; Eberhard Schlücker (WiSNeT, 2023)

Mobile-BAT - A Novel Ultra-Low Power Wildlife Tracking System. - Stefan Erhardt; Martin Koch; Andreas Kiefer; Michael Veith; Robert Weigel; Alexander Koelpin (Sensors, 2023)

Sensor Fusion for the Robust Detection of Facial Regions of Neonates Using Neural Networks. - Johanna Gleichauf; Lukas Hennemann; Fabian B. Fahlbusch; Oliver Hofmann 006; Christine Niebler; Alexander Koelpin (Sensors, 2023)

Non-Invasive Determination of the Mass Flow Rate for Particulate Solids Using Microwaves. - Amrit Zoad; Alexander Koelpin; Andreas Penirschke (Sensors, 2023)

HRV-based Monitoring of Neonatal Seizures with Machine Learning. - Hui Lu; Stefan Kusnik; Dilbar Mammadova; Regina Trollmann; Alexander Koelpin (EMBC, 2024)

A Modular 61 GHz Vital Sign Sensing Radar System for Long-term Clinical Studies. - Marvin Wenzel; Dominik Langer; Alexander Koelpin; Fabian Lurz (WiSNeT, 2024)

60GHz Leaky-Wave Antenna Design for SISO Radar Systems with Angle Estimation. - Jasmin Gabsteiger; Dominik Langer; Christian Dorn; Alexander Koelpin; Fabian Lurz (RWS, 2025)