Network

Our partners & customers are the key part of our success – here you can find some of the companies we have collaborated with:

We are proud to be an official partner of Infineon Technologies AG and Texas Instruments Inc., collaborating to develop innovative radar solutions.

Awards

Sykno GmbH, Nomination for AMA Innovation Award, AMA Association for Sensors and Measurement e.V., 2023
Sykno GmbH, Special Award “Junges Unternehmen” (Young Company), AMA Association for Sensors and Measurement e.V., 2023
B. Scheiner and F. Michler, IEEE MTT-S International Microwave Symposium Student Design Competition First Place Award for “High-Sensitivity Motion Sensing Radar”, IEEE Microwave Theory and Techniques Society (MTT-S), 2019.
F. Michler, B. Scheiner, and F. Lurz, IEEE MTT-S International Microwave Symposium Student Design Competition First Place Award for “High-Sensitivity Fast-Response Motion Sensing Radar”, IEEE Microwave Theory and Techniques Society (MTT-S), 2018.
B. Scheiner, H. Fallahi, and Z. Vander Missen, Graduate Student Challenge Award 2018, IEEE Microwave Theory and Techniques Society (MTT-S), 2018.
F. Michler, IMS2018 PhD Student Sponsorship, IEEE Microwave Theory and Techniques Society (MTT-S), 2018.
B. Scheiner, IMS2018 PhD Student Sponsorship, IEEE Microwave Theory and Techniques Society (MTT-S), 2018.
F. Lurz, F. Michler, and B. Scheiner, IEEE MTT-S International Microwave Symposium Student Design Competition First Place Award for “High-Sensitivity Fast-Response Motion Sensing Radar”, IEEE Microwave Theory and Techniques Society (MTT-S), 2017.
B. Scheiner, Argus 2017 Science Award – Endrunde, Hensoldt, 2017.

Publications by Subject

Mobile communications

2024

F. Michler, R. Reese, B. Scheiner, E. Radermacher, J. Correal and B. Xu, “Directional Power Control of 5G Radio Base Stations for EMF Compliance – Part II: Comparisons with Cell-Wide Power Control in a Live Network in Germany”, in IEEE Transactions on Antennas and Propagation, vol. 73, no. 4, pp. 2259-2270, 2024.

2023

R. Reese, F. Michler, B. Scheiner and E. Radermacher, “EMF-Measurements of Rooftop Attenuation of Cellular Radio Base Stations Deployed on Gable Roofs”, in European Microwave Conference, Berlin, Germany, 2023.

2022

R. Reese, F. Michler, B. Scheiner and E. Radermacher, “In-Situ EMF Measurements of Rooftop Attenuation for Assessment of the Compliance Boundary of Cellular Base Stations”, in IEEE Access, 2022.

Radar-based measurement of vital parameters

2023

F. Michler, “Optimizing continuous-wave radars for vital sign detection: System design challenges and limitations”, Workshop contribution in IEEE International Microwave Symposium (IMS), San Diego, USA, 2023.
F. Michler, “Fundamentals and System Design Challenges in Radar-Based Vital Sign Sensing”, Workshop contribution in IEEE Radio and Wireless Symposium (RWS), Las Vegas, USA, 2023.
B. Scheiner and F. Michler, “Den Herzschlag berührungslos und präzise messen“, In: Elektronikpraxis (2023), S. 62-64

2022

F. Michler, “Dauerstrich-Radarverfahren zur berührungslosen Detektion menschlicher Vitalparameter im 24-GHz-ISM-Band”, Dissertation, Verlag Dr. Hut, 2022.

2021

K. Shi, T. Steigleder, S. Schellenberger, F. Michler, A. Malessa, F. Lurz, N. Rohleder, C. Ostgathe, R. Weigel, and A. Koelpin, “Contactless analysis of heart rate variability during cold pressor test using radar interferometry and bidirectional LSTM networks” in Scientific Reports, 2021.

2020

F. Michler, S. Schönhärl, S. Schellenberger, K. Shi, B. Scheiner, F. Lurz, R. Weigel, and A. Koelpin, “An Automatic Gain and Offset Control Circuit for DC-Coupled Continuous-Wave Radar Systems” in International Microwave Symposium (IMS), Los Angeles, USA, 2020.
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.
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.
K. Shi, S. Schellenberger, C. Will, T. Steigleder, F. Michler, J. Fuchs, R. Weigel, C. Ostgathe, and A. Koelpin, “A dataset of radar-recorded heart sounds and vital signs including synchronised reference sensor signals”, Scientific Data, 2020.

2019

S. Schellenberger, K. Shi, F. Michler, F. Lurz, R. Weigel, and A. Koelpin, “Respiration Extraction from Radar Heart Sound Measurements” in International Engineering in Medicine and Biology Conference, Berlin, Germany, 2019, pp. 6533-6535.
F. Michler, R. Weigel, and A. Koelpin, “Radar-Based Vital Sign Monitoring” in International Microwave Symposium (IMS), Boston, MA, USA, 2019.
K. Shi, S. Schellenberger, F. Michler, T. Steigleder, A. Malessa, F. Lurz, C. Ostgathe, R. Weigel, and A. Koelpin, “Automatic Signal Quality Index Determination of Radar-Recorded Heart Sound Signals Using Ensemble Classification”, IEEE Transactions on Biomedical Engineering, 2019.
F. Michler, K. Shi, S. Schellenberger, T. Steigleder, A. Malessa, L. Hameyer, N. Neumann, F. Lurz, C. Ostgathe, R. Weigel, and A. Koelpin, “A Clinically Evaluated Interferometric Continuous-Wave Radar System for the Contactless Measurement of Human Vital Parameters”, MDPI Sensors, vol. 19, iss. 11, 2019.
F. Michler, K. Shi, S. Schellenberger, B. Scheiner, F. Lurz, R. Weigel, and A. Koelpin, “Pulse Wave Velocity Detection Using a 24 GHz Six-Port Based Doppler Radar” in IEEE Radio and Wireless Symposium (RWS), Orlando, FL, USA, 2019, pp. 1-3.
B. Scheiner, S. Schellenberger, K. Shi, E. Heusinger, F. Michler, F. Lurz, R. Weigel, and A. Koelpin, “Low-power contactless LC-tank based respiratory sensor”, Electronics Letters, pp. 304-306, 2019.

2018

F. Michler, B. Scheiner, F. Lurz, R. Weigel, and A. Koelpin, “A Planar 24 GHz Switched-Beam Antenna Based on PIN Diodes for Remote Sensing Applications” in 2018 Asia-Pacific Microwave Conference, Kyoto, Japan, 2018, pp. 402-404.
K. Shi, S. Schellenberger, T. Steigleder, F. Michler, F. Lurz, R. Weigel, and A. Koelpin, “Contactless Carotid Pulse Measurement Using Continuous Wave Radar” in 2018 Asia-Pacific Microwave Conference, Kyoto, Japan, 2018.
T. Steigleder, A. Malessa, K. Shi, F. Michler, S. Schellenberger, M. Heckel, A. Koelpin, and C. Ostgathe, “Kontinuierliche berührungslose Erfassung von Herzschlag und Atmung als Surrogatparameter für Symptomlinderung–eine Pilotstudie”, Zeitschrift für Palliativmedizin, vol. 19, iss. 05, 2018.
C. Will, K. Shi, S. Schellenberger, T. Steigleder, F. Michler, J. Fuchs, R. Weigel, C. Ostgathe, and A. Koelpin, “Radar-Based Heart Sound Detection”, Scientific Reports, 2018.
K. Shi, C. Will, T. Steigleder, F. Michler, R. Weigel, C. Ostgathe, and A. Koelpin, “A Contactless System for Continuous Vital Sign Monitoring in Palliative and Intensive Care” in 2018 Annual IEEE International Systems Conference (SysCon), Vancouver, Kanada, Canada, 2018.
A. Malessa, T. Steigleder, K. Shi, C. Will, F. Michler, A. Koelpin, and C. Ostgathe, “Neue Wege in der Palliativmedizin – Herausforderungen bei der Entwicklung einer berührungslosen, nicht-belastenden Messung von Vitalparametern” in Wissenschaftliche Arbeitstage der DGP, Göttingen, Germany, 2018.
S. Schellenberger, K. Shi, T. Steigleder, F. Michler, F. Lurz, R. Weigel, and A. Koelpin, “Support Vector Machine-Based Instantaneous Presence Detection for Continuous Wave Radar Systems” in 2018 Asia-Pacific Microwave Conference, Kyoto, Japan, 2018, pp. 1465-1467.

2017

C. Will, S. Mann, F. Michler, T. Reißland, F. Lurz, R. Weigel, and A. Koelpin, “Error Compensation of the Temperature Influence on Radar based Displacement Measurements” in 2017 IEEE Asia Pacific Microwave Conference (APMC), Kuala Lumpur, Malaysia, 2017, pp. 89-92.
F. Michler, S. Lindner, F. Lurz, S. Erhardt, R. Weigel, and A. Koelpin, “Zero-Bias Schottky Power Detector Design for Six-Port based Radar Systems” in European Microwave Conference, Nürnberg, Germany, 2017.
C. Will, K. Shi, S. Schellenberger, T. Steigleder, F. Michler, R. Weigel, C. Ostgathe, and A. Koelpin, “Local Pulse Wave Detection using Continuous Wave Radar Systems”, IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology, vol. 1, iss. 2, pp. 81-89, 2017.

High frequency technology for industrial applications

2024

Faghih-Naini S., Sebastian C., Reißland T., Weigel R., Scheiner B., “Hardware Design Challenges and Modulation Schemes in Joint Communication and Sensing” in IEEE Microwave Magazine, 2024.
Horlbeck M., Fiedelak J., Kurin T., Scheiner B., Weigel R., Lurz F., “Direct Sampling Receiver with an Adjustable Bandpass Filter for Use in Passive Radar with FM Radio” in 2024 IEEE Radio and Wireless Symposium, RWS 2024 San Antonio, TX,.
Horlbeck M., Scheiner B., Weigel R., Lurz F., Overview of Passive Radar and Its Receiver Architectures to Enhance Safety in Civil Aviation: A Comprehensive Analysis of History, Principles, and Performance Optimization Strategies, IEEE Microwave Magazine, 2024.

2023

F. Michler, J. Kolpak, B. Scheiner, R. Weigel, and A. Hagelauer, “Characterization of a Flexible Polymer-Based Substrate Material for RF Applications” in IEEE Radio and Wireless Symposium (RWS), Las Vegas, NV, USA, 2023.
M. Horlbeck, B. Scheiner, R. Weigel, and F. Lurz, “Consideration of Nonlinear Effects in Different Receiver Architectures for Use in Passive Radar Systems” in IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR), Las Vegas, NV, USA, 2023.
Peters S., Hangmann C., Wüllner I., Traupe J., John T., Weigel R., Scheiner B., Low-Cost and High Performance Antenna Setup for Updating ePaper Displays on Curved RFID SmartTags Used in Pharmaceutical Studies, 2023 IEEE/MTT-S International Microwave Symposium, IMS 2023.

2022

F. Michler, B. Scheiner, R. Weigel, and F. Lurz, “Noise Analysis for Six-Port Radars with Schottky Diode Detectors” in International Microwave Symposium (IMS), Denver, CO, USA, 2022.
B. Scheiner, F. Graef, F. Michler, R. Weigel, and F. Lurz, “Evaluation of Embedded Algorithms for a Six-Port-Based Frequency Measurement System” in IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNet), Las Vegas, NV, USA, 2022 (accepted).
F. Michler, M. Neugebauer, B. Scheiner, R. Weigel, and F. Lurz, “Digital Frequency Control Loop for Continuous-Wave and Stepped-Frequency Radars” in IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNet), Las Vegas, NV, USA, 2022.
T. Reißland, F. Michler, R. Weigel, A. Kölpin, and F. Lurz, “Influence of Self-Interference in a Radar System for a Correlation Based True-Speed-Over-Ground Estimation Approach” in IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNet), Las Vegas, NV, USA, 2022.
T. Reißland, F. Michler, R. Weigel, A. Kölpin, and F. Lurz, “Implementation and Assessment of a Radar Based True-Speed-Over-Ground Estimation Approach Utilizing Complex-Valued Correlation” in European Microwave Week 2021, London, UK, 2022.
F. Probst, F. Michler, B. Scheiner, R. Weigel, and F. Lurz, “Design and Evaluation of a Low-Cost SAW Resonator Read-Out System at 2.4 GHz” in IEEE Transactions on Instrumentation and Measurement, 2022.

2021

B. Scheiner, “Miniaturisiertes sechstorbasiertes Frequenzmesssystem für berührungslose ISM-Anwendungen”, Dissertation, Verlag Dr. Hut, 2021.
F. Michler, B. Scheiner, T. Reißland, R. Weigel, and A. Koelpin, “Micrometer sensing with microwaves: Precise radar systems for innovative measurement applications” in IEEE Journal of Microwaves, 2021.
S. Krause, F. Michler, A. Koelpin, M. Rudolph, and W. Heinrich, “A Digital Correction Method for Increased Dynamic Range in Interferometric Six-Port Radars” in IEEE Microwave and Wireless Components Letters, 2021.
T. Reißland, F. Michler, B. Scheiner, A. Koelpin, and R. Weigel, “Post-Processing and Evaluation for a Radar Based True-Speed-Over-Ground Estimation System” in IEEE Microwave and Wireless Components Letters, 2021.
B. Scheiner, F. Probst, F. Michler, R. Weigel, A. Koelpin, and F. Lurz, “Miniaturized Hybrid Frequency Reader for Contactless Measurement Scenarios Using Resonant Surface Acoustic Wave Sensors” in MDPI Sensors, vol. 21, iss. 7, 2021.
B. Scheiner, F. Probst, F. Michler, R. Weigel, A. Kölpin, and F. Lurz, “Low-Cost Six-Port for High-Volume Frequency Measurement Systems in the 2.4 GHz ISM-Band” in IEEE Topical Conference on Wireless Sensors and Sensor Networks, SanDiego, California, 2021.
M. Horlbeck, B. Scheiner, R. Weigel, and F. Lurz, “Fast RF-Synthesizer based on Direct Digital Synthesis for an Instantaneous Frequency Measurement System” in IEEE Radio and Wireless Syposium, San Diego, California, 2021.
F. Michler, B. Scheiner, T. Reißland, R. Weigel, and A. Kölpin, “Micrometer sensing with microwaves: Precise radar systems for innovative measurement applications” in IEEE Journal of Microwaves, vol. 1, no. 1, pp. 202-217, 2021.

2020

B. Scheiner, C. Beck, F. Lurz, M. Frank, F. Michler, R. Weigel, and A. Koelpin, “Rotary Coupler in Microstrip Line Design for Data Transmission in the 2.45 GHZ ISM-Band“ in International Microwave and Radar Conference (MIKON), Warsaw, Poland, 2020.
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.
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.
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.
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, vol. 21, iss. 1, pp. 88-95, 2020.

2019

B. Scheiner, F. Lurz, F. Michler, R. Weigel, and A. Koelpin, “Frequency Readjustment of Excitation Signals for Resonant Surface Acoustic Wave Sensors in the 2.45 GHz ISM Band” in Asia-Pacific Microwave Conference (APMC19), Singapore, 2019.
B. Scheiner, F. Lurz, F. Michler, R. Weigel, and A. Koelpin, “In-Situ-Linearization for Instantaneous Frequency Measurement Systems” in European Microwave Week 2019, Paris, France, 2019.
B. Scheiner, F. Lurz, F. Michler, R. Weigel, and A. Koelpin, “Frequency Response Characterization of Surface Acoustic Wave Resonators Using a Six-Port Frequency Measurement System” in Kleinheubacher Tagung, Miltenberg, 2019.
I. Lau, A. Hajian, F. Michler, G. Gold, F. Lurz, U. Schmid, K. Helmreich, R. Weigel, and A. Koelpin, “Influence of the PCB Manufacturing Process on the Measurement Error of Planar Relative Permittivity Sensors Up To 100 GHz”, IEEE Transactions on Microwave Theory and Techniques, vol. 67, iss. 7, pp. 2793-2804, 2019.
J. Lichtblau, F. Michler, B. Scheiner, F. Lurz, M. Gräbner, M. Hundhausen, R. Weigel, and A. Koelpin, “Phased Array Approach for Vehicle-to-Infrastructure Communication in Train Stations” in 2019 IEEE Radio and Wireless Symposium (RWS), Orlando, FL, USA, 2019.
E. Hassan, M. Berggren, B. Scheiner, F. Michler, R. Weigel, and F. Lurz, “Design of Planar Microstrip-to-Waveguide Transitions using Topology Optimization” in IEEE Radio and Wireless Symposium (RWS), Orlando, FL, USA, 2019, pp. 1-3.
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, vol. 20, iss. 1, pp. 91-97, 2019.
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, pp. 1-3.

2018

F. Michler, H. Deniz, F. Lurz, R. Weigel, and A. Koelpin, “Performance Analysis of an Ultra Wideband Transceiver for Real-Time Localization” in 2018 48th European Microwave Conference (EuMC), Madrid, Spain, 2018, pp. 1141-1144.
J. Lichtblau, B. Scheiner, F. Michler, M. Gräbner, B. Sanftl, R. Weigel, and A. Koelpin, “Novel Approach for Virtual Coupling of Trains Using Different Modulation and Coding Schemes” in 2018 International Conference on Intelligent Rail Transportation (ICIRT), Singapur, Singapore, 2018.
B. Scheiner, F. Lurz, F. Michler, S. Linz, R. Weigel, and A. Koelpin, “Six-Port Based Multitone and Low-Power Radar System for Waveguides in Smart Factories” in Proceedings of the 48th European Microwave Conference, Madrid, Spain, 2018, pp. 1065-1068.
I. Lau, F. Michler, A. Talai, R. Weigel, and A. Koelpin, “A Resonant Substrate Integrated Waveguide Measurement System for True Relative Permittivity Extraction of PCB Materials up to 90 GHz” in IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes (IMWS-AMP), Ann Arbor, 2018, pp. 1-3.
B. Scheiner, F. Lurz, F. Michler, S. Lindner, S. Linz, R. Weigel, and A. Koelpin, “Fast Dual-Synthesizer for Six-Port In-Situ Linearization in the 2,4 GHz ISM-Band” in German Microwave Conference, Freiburg, Germany, 2018, pp. 223-226.
F. Lurz, F. Michler, B. Scheiner, R. Weigel, and A. Koelpin, “Microw(h)att?! Ultralow-Power Six-Port Radar”, IEEE Microwave Magazine, vol. 19, iss. 1, pp. 91-98, 2018.
F. Lurz, P. Hofstetter, S. Lindner, S. Linz, F. Michler, R. Weigel, and A. Koelpin, “Low-Power Frequency Synthesizer for Multi-Tone Six-Port Radar” in IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNet), Anaheim, CA, USA, 2018, pp. 84-87.
B. Scheiner, S. Mann, F. Lurz, F. Michler, S. Erhardt, S. Lindner, R. Weigel, and A. Koelpin, “Microstrip-to-Waveguide Transition in Planar Form Using a Substrate Integrated Waveguide” in Radio and Wireless Symposium (RWS), 2018 IEEE, Anaheim, CA, USA, 2018, pp. 18-20.