Carlowitz, Christian – Institute of Microwaves and Photonics

Dr.-Ing. Christian Carlowitz, Akad. Rat

Research Group Leader: Microwave Photonic & Quantum Systems

Department of Electrical-Electronic-Communication Engineering
Institute of Microwaves and Photonics (LHFT)

Raum 05.235
Cauerstr. 9
91058 Erlangen

Phone number: +49 9131 85-20772
Fax number: +49 9131 85-27212
Email: christian.carlowitz@fau.de
Website: http://www.lhft.eei.uni-erlangen.de/mitarbeiter/data/christian-carlowitz.shtml

Forschungsschwerpunkte

Microwave photonic systems
Electro-optical interfaces
Opto-electronic signal generation
Cryogenic microwave components and systems for quantum technologies
Microwave qubit control for quantum computing

Positionen und Funktionen

Leitender wissenschaftlicher Mitarbeiter am LHFT
ERASMUS Koordinator
Laborleitung Embedded Wireless Laboratory

Vita

Christian Carlowitz wurde 1985 in Wolfenbüttel geboren. Nach dem Abitur studierte er Informationstechnik an der Technischen Universität Clausthal und schloss das Studium 2010 als Diplomingenieur ab. Anschließend wechselte er als wissenschaftlicher Mitarbeiter an die Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) und promovierte dort 2018 am Lehrstuhl für Hochfrequenztechnik mit dem Thema “Drahtlose Hochgeschwindigkeitskommunikation mit Regenerativer Abtastung”. Er leitet als akademischer Rat seit 2018 die Arbeitsgruppe “Microwave and Photonic Systems”.
Seine Forschung umfasst die Konzeption, den Entwurf sowie die Realisierung von innovativen Systemarchitekturen für Radar- und Kommunikationsfrontends im Bereich von Mikrowellen, mm-Wellen und optischen Frequenzen. Schwerpunkte seiner Arbeit stellen sowohl Verfahren zur analogen und digitalen Signalverarbeitung als auch Hardwarekonzepte für extrem breitbandige Systeme zur Hochgeschwindigkeitskommunikation, Full-Duplex Transceiver im Bereich Mobilfunkanwendungen, Massive MIMO Basisstationen und zur Ortung und Kommunikation mit mm-Wellen RFID Systemen dar.
Dr. Carlowitz ist Mitglied der IEEE Microwave Theory and Techniques Society (MTT-S) sowie Teil des IEEE MTT-S Technical Coordinating Committee Digital Signal Processing (MTT-9). Er ist regelmäßiger Reviewer für die Transactions on Microwave Theory and Techniques und mehrere internationale, von MTTS gesponsorte Konferenzen wie IMS, EuMW, ICMIM und GeMIC.

Neueste Veröffentlichungen

Hahn L., Bader T., Carlowitz C., Vossiek M., Gold G.:
Tight Non-Radiating Bends of 3D-Printed Dielectric Image Lines Based on Electromagnetic Bandgap Mirrors
2024 IEEE Wireless and Microwave Technology Conference (WAMICON) (Clearwater, 15. April 2024 - 16. April 2024)
In: 2024 IEEE Wireless and Microwave Technology Conference (WAMICON) 2024
DOI: 10.1109/WAMICON60123.2024.10522856
Schmidt M., Sadeghi M., Rahimi F., Eskofier B., Buglagil A., Schmauß B., Carlowitz C.:
Realtime Laser Beam Steering and Calibration Method for Coherent Biomedical Distance and Motion Sensing
CLEO: Science and Innovations in CLEO 2024, CLEO: S and I 2024 - Part of Conference on Lasers and Electro-Optics (Charlotte, NC, USA, 5. May 2024 - 10. May 2024)
In: CLEO: Science and Innovations, CLEO: S and I 2024 in Proceedings CLEO 2024, Part of Conference on Lasers and Electro-Optics 2024
Birkenhauer C., Körner G., Stief P., Hamberger G., Beer M., Carlowitz C., Vossiek M.:
Investigation of a Simple and Versatile Concept for OFDM Radar Target Simulator Enhancement
2024 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNeT 2024 (San Antonio, TX, USA, 21. January 2024 - 24. January 2024)
In: 2024 IEEE Radio and Wireless Week, RWW 2024 - 2024 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNeT 2024 2024
DOI: 10.1109/WiSNeT59910.2024.10438535
URL: https://ieeexplore.ieee.org/document/10438535
Schmidt M., Carlowitz C.:
Efficient Synthesis of Broadband Linear Frequency-Modulated Quadrature Signals for Coherent Electro-Optical Sensor Systems
2024 IEEE/MTT-S International Microwave Symposium, IMS 2024 (Washington, DC, 16. June 2024 - 21. June 2024)
In: IEEE MTT-S International Microwave Symposium Digest 2024
DOI: 10.1109/IMS40175.2024.10600286
Hahn L., Pfahler T., Bader T., Gold G., Vossiek M., Carlowitz C.:
3D-Printed Dielectric Image Lines Towards Chip-to-Chip Interconnects for subTHz-Applications
2024 IEEE International Conference on Microwaves, Communications, Antennas, Biomedical Engineering and Electronic Systems, COMCAS 2024 (Tel Aviv, ISR, 9. July 2024 - 11. July 2024)
In: 2024 IEEE International Conference on Microwaves, Communications, Antennas, Biomedical Engineering and Electronic Systems, COMCAS 2024 2024
DOI: 10.1109/COMCAS58210.2024.10666228
Hahn L., Vossiek M., Carlowitz C.:
A Subharmonic Super-Regenerative FMCW Radar With Improved Intermodulation Efficiency for Applications Beyond Cut-Off Frequency
In: IEEE Transactions on Microwave Theory and Techniques (2023), p. 1-15
ISSN: 0018-9480
DOI: 10.1109/TMTT.2023.3316305
Birkenhauer C., Körner G., Stief P., Hamberger G., Beer M., Carlowitz C., Vossiek M.:
A Simple and Versatile Concept to Improve Dynamic Range and Enable Target Angle Adaptability in Radar Target Simulators
In: IEEE Journal of Microwaves (2023), p. 1-11
ISSN: 2692-8388
DOI: 10.1109/JMW.2023.3296594
Fenske P., Kögel T., Scheder A., Root K., Carlowitz C., Vossiek M.:
An Active Self-Interference Cancellation Coupler with 60 dB Isolation Applied in a 24 GHz SFCW Radar
2023 IEEE/MTT-S International Microwave Symposium - IMS 2023 (San Diego, CA, USA, 11. June 2023 - 16. June 2023)
DOI: 10.1109/IMS37964.2023.10187937
Carlowitz C., Dietz M.:
Integrated Front-End Approaches for Wireless 100 Gb/s and Beyond: Enabling Efficient Ultra-High Speed Wireless Communication Systems
In: IEEE Microwave Magazine 24 (2023), p. 16-34
ISSN: 1527-3342
DOI: 10.1109/MMM.2023.3277360
Fenske P., Scheder A., Kögel T., Root K., Vossiek M., Carlowitz C.:
Self-Interference Leakage Estimation 'N' Cancellation Element: Design of an Active Self-Interference Cancellation Coupler
In: IEEE Microwave Magazine 24 (2023), p. 68-75
ISSN: 1527-3342
DOI: 10.1109/MMM.2023.3256380
Vossiek M., Haberberger N., Krabbe L., Hehn M., Carlowitz C., Stelzig M.:
A Tutorial on the Sequential Sampling Impulse Radar Concept and Selected Applications
In: IEEE Journal of Microwaves 3 (2023), p. 523-539
ISSN: 2692-8388
DOI: 10.1109/JMW.2022.3228724
Birkenhauer C., Körner G., Stief P., Gareis M., Carlowitz C., Vossiek M., Birkenhauer C., Kuhnlein M., Korner G., Stief P., Gareis M., Carlowitz C., Vossiek M.:
Radar Target Simulator Based on Instantaneous Intra-Chirp FMCW Parameter Estimation
20th European Radar Conference, EuRAD 2023
DOI: 10.23919/EuRAD58043.2023.10289216
Hahn L., Vossiek M., Carlowitz C.:
A Low-Power, Subharmonic Super-Regenerative Receiver toward a Massive Multichannel FMCW Radar Close to Cut-Off Frequency
2023 IEEE/MTT-S International Microwave Symposium, IMS 2023 (San Diego, CA, 11. June 2023 - 16. June 2023)
In: IEEE MTT-S International Microwave Symposium Digest 2023
DOI: 10.1109/IMS37964.2023.10188187
Birkenhauer C., Körner G., Stief P., Hofmann A., Alami El Dine M., Carlowitz C., Vossiek M.:
A Compact 77 GHz IQ-Modulated Transponder for High Gain and High Dynamic Range Radar Target Simulation
2023 IEEE/MTT-S International Microwave Symposium, IMS 2023 (San Diego, CA, USA, 11. June 2023 - 16. June 2023)
In: IEEE MTT-S International Microwave Symposium Digest 2023
DOI: 10.1109/IMS37964.2023.10188151
Tschapek P., Körner G., Carlowitz C., Vossiek M.:
Detailed Analysis and Modeling of Phase Noise and Systematic Phase Distortions in FMCW Radar Systems
In: IEEE Journal of Microwaves 2 (2022), p. 648-659
ISSN: 2692-8388
DOI: 10.1109/JMW.2022.3195574
URL: https://ieeexplore.ieee.org/document/9875949
Tschapek P., Körner G., Fenske P., Carlowitz C., Vossiek M.:
A Novel Approach for Modeling and Digital Generation of RF Signals Distorted by Bandlimited Phase Noise
In: IEEE Journal of Microwaves 2 (2022), p. 699-710
ISSN: 2692-8388
DOI: 10.1109/JMW.2022.3188166
URL: https://ieeexplore.ieee.org/document/9843983
Körner G., Birkenhauer C., Stief P., Carlowitz C., Vossiek M.:
Frequency Extension Method for Multirate Radar Target Simulation Systems
German Microwave Conference (GeMiC) (Ulm, 16. May 2022 - 18. May 2022)
In: IEEE (ed.): 14 2022
Tschapek P., Körner G., Hofmann A., Carlowitz C., Vossiek M.:
Phase Noise Spectral Density Measurement of Broadband Frequency-Modulated Radar Signals
In: IEEE Transactions on Microwave Theory and Techniques 70 (2022), p. 2370-2379
ISSN: 0018-9480
DOI: 10.1109/TMTT.2022.3148311
URL: https://ieeexplore.ieee.org/document/9721401
Körner G., Birkenhauer C., Stief P., Carlowitz C., Vossiek M.:
Efficient Bandwidth Enhanced Multirate Radar Target Simulation
2022 IEEE/MTT-S International Microwave Symposium, IMS 2022 (Denver, CO, 19. June 2022 - 24. June 2022)
In: IEEE MTT-S International Microwave Symposium Digest 2022
DOI: 10.1109/IMS37962.2022.9865650
Körner G., Hoffmann M., Neidhardt S., Beer M., Carlowitz C., Vossiek M.:
Multirate Universal Radar Target Simulator for an Accurate Moving Target Simulation
In: IEEE Transactions on Microwave Theory and Techniques 5 (2021), p. 2730 - 2740
ISSN: 0018-9480
DOI: 10.1109/TMTT.2021.3060817
Ussmueller T., Carlowitz C.:
Advancing Ultrahigh-Frequency RFID through Digital Signal Processing [From the Guest Editors' Desk]
In: IEEE Microwave Magazine 22 (2021), p. 16-17
ISSN: 1527-3342
DOI: 10.1109/MMM.2020.3042033
Gareis M., Parr A., Trabert J., Mehner T., Vossiek M., Carlowitz C.:
Stocktaking Robots, Automatic Inventory, and 3D Product Maps: The Smart Warehouse Enabled by UHF-RFID Synthetic Aperture Localization Techniques
In: IEEE Microwave Magazine 22 (2021), p. 57 - 68
ISSN: 1527-3342
DOI: 10.1109/MMM.2020.3042443
Gareis M., Hehn M., Stief P., Körner G., Birkenhauer C., Trabert J., Mehner T., Vossiek M., Carlowitz C.:
Novel UHF-RFID Listener Hardware Architecture and System Concept for a Mobile Robot Based MIMO SAR RFID Localization
In: IEEE Access (2020), p. 497-510
ISSN: 2169-3536
DOI: 10.1109/ACCESS.2020.3047122
Gareis M., Carlowitz C., Vossiek M.:
A MIMO UHF-RFID SAR 3D Locating System for Autonomous Inventory Robots
2020 IEEE MTT-S International Conference on Microwaves for Intelligent Mobility, ICMIM 2020 (Linz, 23. November 2020)
In: 2020 IEEE MTT-S International Conference on Microwaves for Intelligent Mobility, ICMIM 2020 2020
DOI: 10.1109/ICMIM48759.2020.9298989
Gareis M., Fenske P., Carlowitz C., Vossiek M.:
Particle Filter-Based SAR Approach and Trajectory Optimization for Real-Time 3D UHF-RFID Tag Localization
2020 IEEE International Conference on RFID (RFID) (Orlando, FL, USA,, 28. September 2020 - 16. October 2020)
DOI: 10.1109/RFID49298.2020.9244917
Carlowitz C., Vossiek M., Girg T., Dietz M., Schrotz AM., Maiwald T., Hagelauer AM., Weigel R., Ghaleb H., Carta C., Ellinger F., Du XQ., Grözing M., Berroth M.:
SPARS — Simultaneous Phase and Amplitude Regenerative Sampling
In: Rolf Kraemer, Stefan Scholz (ed.): Wireless 100 Gbps And Beyond. Architectures, Approaches and Findings of German Research Foundation (DFG) Priority Programme SPP1655, Frankfurt/Oder: IHP GmbH, Im Technologiepark 25, Frankfurt (Oder), 2020, p. 37-74
ISBN: 978-3-96439-003-5
Ghaleb H., Carlowitz C., Fritsche D., Starke P., Protze F., Carta C., Ellinger F.:
A 180-GHz Super-Regenerative Oscillator with up to 58 dB Gain for Efficient Phase and Amplitude Recovery
In: IEEE Transactions on Microwave Theory and Techniques 68 (2020), p. 2011-2019
ISSN: 0018-9480
DOI: 10.1109/TMTT.2020.2987555
Gröschel P., Hehn M., Sippel E., Schober R., Weigel R., Vossiek M., Carlowitz C.:
An Ultra-Versatile Massive MIMO Transceiver Testbed for Multi-Gb/s Communication
2019 IEEE 2nd 5G World Forum (5GWF) (Dresden, 30. September 2019 - 2. October 2019)
DOI: 10.1109/5GWF.2019.8911665
Ghaleb H., Carlowitz C., Fritsche D., Carta C., Ellinger F.:
A 180-GHz Super-Regenerative Oscillator with up to 58 dB Gain for Efficient Phase Recovery
2019 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2019 (Boston, MA, 2. June 2019 - 4. June 2019)
In: Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium 2019
DOI: 10.1109/RFIC.2019.8701870
Hehn M., Sippel E., Carlowitz C., Vossiek M.:
High-Accuracy Localization and Calibration for 5-DoF Indoor Magnetic Positioning Systems
In: IEEE Transactions on Instrumentation and Measurement 68 (2018), p. 4135 - 4145
ISSN: 0018-9456
DOI: 10.1109/TIM.2018.2884040
Schütz M., Dobrev Y., Carlowitz C., Vossiek M.:
Wireless Local Positioning with SILO-Based Backscatter Transponders for Autonomous Robot Navigation
IEEE MTT-S International Conference on Microwaves for Intelligent Mobility (ICMIM 2018) (Munich)
DOI: 10.1109/icmim.2018.8443524
Carlowitz C.:
Drahtlose Hochgeschwindigkeitskommunikation mit Regenerativer Abtastung (Dissertation, 2018)
Carlowitz C., Girg T., Ghaleb H., Du XQ.:
Efficient Ultra-High Speed Communication with Simultaneous Phase and Amplitude Regenerative Sampling (SPARS)
In: Frequenz 71 (2017), p. 449
ISSN: 0016-1136
DOI: 10.1515/freq-2017-0163
Gröschel P., Zarei S., Carlowitz C., Lipka M., Sippel E., Ali A., Weigel R., Schober R., Vossiek M.:
A System Concept for Online Calibration of Massive MIMO Transceiver Arrays for Communication and Localization
In: IEEE Transactions on Microwave Theory and Techniques (2017)
ISSN: 0018-9480
DOI: 10.1109/TMTT.2017.2663404
URL: http://ieeexplore.ieee.org/document/7867061/
Carlowitz C., Gröschel P., Schober R., Vossiek M.:
Novel Radar-based Calibration Techniques for Massive MIMO Arrays
In: IMS 2017 Workshop on Massive MIMO and its 5G Related Applications 2017
Carlowitz C., Vossiek M.:
Novel Localization Concepts with Advanced Low-Complexity Microwave and Millimeterwave RFIDs
In: IMS 2017 Workshop on Localization in Wireless Sensor Networks 2017
Carlowitz C., Vossiek M.:
Demonstration of an Efficient High Speed Communication Link Based on Regenerative Sampling
In: International Microwave Symposium (IMS2017) 2017
DOI: 10.1109/MWSYM.2017.8058682
Pöpperl M., Carlowitz C., Vossiek M., Mandel C., Jakoby R.:
An Ultra-Wideband Time Domain Reflectometry Chipless RFID System with Higher Order Modulation Schemes
Proceedings of the 10th German Microwave Conference (GeMiC 2016) (Bochum)
In: Proceedings of the 10th German Microwave Conference (GeMiC 2016) 2016
DOI: 10.1109/GEMIC.2016.7461640
Carlowitz C., Vossiek M.:
Concept for a Novel Low-Complexity QAM Transceiver Architecture Suitablefor Close to Transition Frequency Operation
IEEE MTT-S International Microwave Symposium, IMS 2015 (Phoenix)
DOI: 10.1109/MWSYM.2015.7166983
Carlowitz C., Vossiek M.:
PSK Modulator for Regenerative Sampling Gigabit UWB Communication
In: 8th German Microwave Conference (GeMiC2014) 2014
Stein W., Carlowitz C., Vossiek M.:
Millimeter Wave Backscatter Transponders for Secondary Radar-Based Localization
In: IEEE Radio Wireless Week 2014 2014
Strobel A., Schulz M., Ellinger F., Carlowitz C., Vossiek M.:
Analysis of phase sampling noise of switched injection-locked oscillators
2014 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNet 2014 (Newport Beach, CA, USA, 19. January 2014 - 22. January 2014)
In: IEEE Radio Wireless Week 2014 2014
DOI: 10.1109/WiSNet.2014.6825492
Carlowitz C., Eßwein A., Weigel R., Vossiek M.:
Regenerative Sampling Self-Mixing Receiver: A Novel Concept for Low Complexity Phase Demodulation
2013 IEEE MTT-S International Microwave Symposium Digest, MTT 2013 (Seattle, USA, 2. June 2013 - 7. June 2013)
In: IEEE International Microwave Symposium 2013 2013
DOI: 10.1109/MWSYM.2013.6697569
Eßwein A., Weigel R., Carlowitz C., Vossiek M.:
Concepts and Components for Pulsed Angle Modulated Ultra Wideband Communication and Radar Systems
Intech, 2013
ISBN: 978-953-51-0936-5
DOI: 10.5772/2648
URL: http://www.intechopen.com/books/ultra-wideband-radio-technologies-for-communications-localization-and-sensor-applications
Eßwein A., Carlowitz C., Weigel R., Vossiek M.:
Ultra-Wideband Radio Technologies for Communications, Localization and Sensor Applications
In: Ultra-Wideband Radio Technologies for Communications, Localization and Sensor Applications, InTech, 2013, p. 343-368
DOI: 10.5772/55082
Carlowitz C., Vossiek M., Strobel A., Ellinger F.:
Precise ranging and simultaneous high speed data transfer using mm-wave regenerative active backscatter tags
2013 IEEE International Conference on RFID, RFID 2013 (Orlando, USA, 30. April 2013 - 2. May 2013)
In: IEEE RFID 2013 2013
DOI: 10.1109/RFID.2013.6548162
Carlowitz C., Vossiek M.:
Miniaturized Regenerative Backscatter Transponder with Bidirectional Communication
2013 10th European Radar Conference, EuRAD 2013 - Held as Part of 16th European Microwave Week, EuMW 2013 (Nuremberg, Germany, 6. October 2013 - 11. October 2013)
In: 43th European Microwave Week / EuRAD 2013
Carlowitz C., Eßwein A., Weigel R., Vossiek M.:
Concepts for Generation of Angle Modulated mm-Wave UWB Signals for Communication and Ranging
In: IMS 2013 Workshop on RFICs/MMICs and Their Professional Wireless Sensing Applications 2013
Eßwein A., Carlowitz C., Vossiek M., Weigel R., Ußmüller T.:
An Improved Switched Injection-Locked Oscillator for Ranging and Communication Systems
43rd European Microwave Conference (Nuremberg, 7. October 2013 - 10. October 2013)
Strobel A., Carlowitz C., Wolf R., Ellinger F., Vossiek M.:
A Millimeter-Wave Low-Power Active Backscatter Tag for FMCW Radar Systems
In: IEEE Transactions on Microwave Theory and Techniques 61 (2013), p. 1964-1972
ISSN: 0018-9480
DOI: 10.1109/TMTT.2013.2252915
Carlowitz C., Strobel A., Schafer T., Ellinger F., Vossiek M.:
A mm-wave RFID system with locatable active backscatter tag
IEEE International Conference on Wireless Information Technology and Systems 2012 (Maui)
DOI: 10.1109/ICWITS.2012.6417738
Carlowitz C., Eßwein A., Weigel R., Vossiek M.:
A low power Pulse Frequency Modulated UWB radar transmitter concept based on switched injection locked harmonic sampling
7th German Microwave Conference (GeMiC2012) (Ilmenau)
Carlowitz C., Eßwein A., Weigel R., Vossiek M.:
Synthesis of Pulsed Frequency Modulated Ultra Wideband Radar Signals Based on Stepped Phase Shifting
2012 IEEE International Conference on Ultra-Wideband, ICUWB 2012 (Syracuse, USA, 17. September 2012 - 20. September 2012)
In: IEEE International Conference on Ultra-Wideband, ICUWB 2012 2012
DOI: 10.1109/ICUWB.2012.6340471
Carlowitz C., Vossiek M.:
Synthesis of Angle Modulated Ultra Wideband Signals Based on Regenerative Sampling
2012 IEEE MTT-S International Microwave Symposium, IMS 2012 (Montreal, Canada, 17. June 2012 - 22. June 2012)
In: IEEE MTT-S International Microwave Symposium 2012 (IMS 2012) 2012
DOI: 10.1109/MWSYM.2012.6258418
Eßwein A., Carlowitz C., Fischer G., Vossiek M., Weigel R., Ußmüller T.:
An Integrated Switched Injection-Locked Oscillator for Pulsed Angle Modulated Ultra Wideband Communication and Radar Systems
2012 IEEE International Conference on Ultra-Wideband, ICUWB 2012 (Syracuse, USA, 17. September 2012 - 20. September 2012)
In: IEEE International Conference on Ultra-Wideband, ICUWB 2012 2012
DOI: 10.1109/ICUWB.2012.6340458
Eßwein A., Dehm-Andone G., Aleksieieva A., Carlowitz C., Fischer G., Vossiek M., Weigel R., Ussmueller T.:
Spannungsgesteuerter Colpitts-Oszillator mit weitem Abstimmbereich in Silizium-Germanium-Technologie und Ausgangsschalter zur Generierung gepulster frequenzmodulierter Ultrabreitband-Signale
12. GMM/ITG-Fachtagung Analog 2011