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Alexander Koelpin
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2020 – today
- 2024
- [c85]Marvin Wenzel, Dominik Langer, Alexander Koelpin, Fabian Lurz:
A Modular 61 GHz Vital Sign Sensing Radar System for Long-term Clinical Studies. WiSNeT 2024: 18-21 - 2023
- [j20]Johanna Gleichauf, Lukas Hennemann, Fabian B. Fahlbusch, Oliver Hofmann, Christine Niebler, Alexander Koelpin:
Sensor Fusion for the Robust Detection of Facial Regions of Neonates Using Neural Networks. Sensors 23(10): 4910 (2023) - [j19]Stefan Erhardt, Martin Koch, Andreas Kiefer, Michael Veith, Robert Weigel, Alexander Koelpin:
Mobile-BAT - A Novel Ultra-Low Power Wildlife Tracking System. Sensors 23(11): 5236 (2023) - [j18]Amrit Zoad, Alexander Koelpin, Andreas Penirschke:
Non-Invasive Determination of the Mass Flow Rate for Particulate Solids Using Microwaves. Sensors 23(24): 9821 (2023) - [c84]Nils C. Albrecht, Markus Heyder, Marvin Wenzel, Dominik Langer, Hui Lu, Alexander Koelpin:
Long-Distance Heart Sound Detection using 122 GHz CW Radar with 3D Printed High-Gain Antennas. RWS 2023: 34-36 - [c83]Hui Lu, Markus Heyder, Marvin Wenzel, Nils C. Albrecht, Dominik Langer, Alexander Koelpin:
Accurate Heart Beat Detection with Doppler Radar using Bidirectional GRU Network. RWS 2023: 52-54 - [c82]Nico Weiss, Alexander Koelpin, Irina Wiemann, Eberhard Schlücker:
A novel method for determining the degree of hydrogen loading of LOHC using cavity based permittivity measurements. WiSNeT 2023: 24-27 - [c81]Torsten Reissland, Robert Weigel, Alexander Koelpin, Fabian Lurz:
Theoretical Limits and Interpolation based Improvements of a Correlation Based True-Speed-Over-Ground Estimation. WiSNeT 2023: 60-63 - 2022
- [j17]Louise Springer, Frank Ludwig, Uros Mavric, Volodymyr Vasylyuk, Heinrich Pryschelski, Matthias Hoffmann, Holger Schlarb, Alexander Kölpin, Arne F. Jacob:
Phase Noise Measurements for L-Band Applications at Attosecond Resolution. IEEE Trans. Instrum. Meas. 71: 1-7 (2022) - [c80]Liv Herzer, Annika Muecke, Robert Richer, Nils C. Albrecht, Markus Heyder, Katharina M. Jäger, Veronika Koenig, Alexander Koelpin, Nicolas Rohleder, Bjoern M. Eskofier:
Influence of Sensor Position and Body Movements on Radar-Based Heart Rate Monitoring. BHI 2022: 1-4 - [c79]Hui Lu, Julia Beatriz Yip, Tobias Steigleder, Stefan Grießhammer, Maria Heckel, Naga Venkata Sai Jitin Jami, Bjoern M. Eskofier, Christoph Ostgathe, Alexander Koelpin:
A Lightweight Robust Approach for Automatic Heart Murmurs and Clinical Outcomes Classification from Phonocardiogram Recordings. CinC 2022: 1-4 - [c78]Sebastian Schaffenroth, Hans-Peter Schmidt, Alexander Kölpin:
Measurement setup for industrial communication techniques under electromagnetic interference. SAS 2022: 1-6 - [c77]Sebastian Schaffenroth, Hans-Peter Schmidt, Alexander Kölpin:
Experimental analysis of frequency inverter noise on single pair Ethernet communication. WFCS 2022: 1-4 - [c76]Torsten Reissland, Fabian Michler, Robert Weigel, Alexander Koelpin, Fabian Lurz:
Influence of Self-Interference in a Radar System for a Correlation Based True-Speed-Over-Ground Estimation Approach. WiSNet 2022: 8-10 - 2021
- [j16]Benedict Scheiner, Florian Probst, Fabian Michler, Robert Weigel, Alexander Koelpin, Fabian Lurz:
Miniaturized Hybrid Frequency Reader for Contactless Measurement Scenarios Using Resonant Surface Acoustic Wave Sensors. Sensors 21(7): 2367 (2021) - [j15]Johanna Gleichauf, Sven Herrmann, Lukas Hennemann, Hannes Krauss, Janina Nitschke, Philipp Renner, Christine Niebler, Alexander Koelpin:
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. Sensors 21(9): 2959 (2021) - [c75]Nabanita Sengupta, Johannes Rossouw van der Merwe, Alexander Koelpin, Alexander Rügamer, Matthias Kuhl, Wolfgang Felber:
Multibeam antenna array and software switching for low-complexity low-cost GNSS beamforming. ICL-GNSS 2021: 1-7 - [c74]Sebastian Schaffenroth, Hans-Peter Schmidt, Alexander Kölpin:
Mitigation of Coloured Impulsive noise in OFDM receiver. ISPLC 2021: 43-48 - [c73]Benedict Scheiner, Florian Probst, Fabian Michler, Robert Weigel, Alexander Koelpin, Fabian Lurz:
Low-Cost Six-Port for High-Volume Frequency Measurement Systems in the 2.4 GHz ISM-Band. WiSNet 2021: 44-46 - 2020
- [j14]Sven Schellenberger, Kilin Shi, Fabian Michler, Fabian Lurz, Robert Weigel, Alexander Koelpin:
Continuous In-Bed Monitoring of Vital Signs Using a Multi Radar Setup for Freely Moving Patients. Sensors 20(20): 5827 (2020) - [j13]Kilin Shi, Sven Schellenberger, Fabian Michler, Tobias Steigleder, Anke Malessa, Fabian Lurz, Christoph Ostgathe, Robert Weigel, Alexander Koelpin:
Automatic Signal Quality Index Determination of Radar-Recorded Heart Sound Signals Using Ensemble Classification. IEEE Trans. Biomed. Eng. 67(3): 773-785 (2020) - [c72]Johanna Gleichauf, Christine Niebler, Alexander Koelpin:
Automatic non-contact monitoring of the respiratory rate of neonates using a structured light camera. EMBC 2020: 4118-4121 - [c71]Martin Frank, Fabian Lurz, Markus Kempf, Jürgen Röber, Robert Weigel, Alexander Koelpin:
Miniaturized Ultra-Wideband Antenna Design for Human Implants. RWS 2020: 48-51 - [c70]Stefan Erhardt, Josef Koller, Fabian Lurz, Robert Weigel, Alexander Koelpin:
An Automatic Detection and Data Downlink System for Miniature Bat Loggers. RWS 2020: 247-250 - [c69]Simon Heining, Fabian Michler, Benedict Scheiner, Emadeldeen Hassan, Alexander Koelpin, Robert Weigel, Fabian Lurz:
An Ultra Broadband Multi-Tone Six-Port Radar for Distance Measurements in K-Band Waveguides. RWS 2020: 279-282 - [c68]Fabian Michler, Kilin Shi, Sven Schellenberger, Benedict Scheiner, Fabian Lurz, Robert Weigel, Alexander Koelpin:
On the Impact of System Nonlinearities in Continuous-Wave Radar Systems for Vital Parameter Sensing. WiSNet 2020: 13-15 - [c67]Christian Dorn, Stefan Erhardt, Robert Weigel, Alexander Koelpin, Fabian Lurz:
Low-Cost Direction-of-Arrival Measurements using Multiplexed Antenna Switching. WiSNet 2020: 34-37 - [c66]Martin Frank, Fabian Lurz, Robert Weigel, Alexander Koelpin:
Universal low-cost Transmitarray Antenna Design at 61 GHz for Beam Steering with different Feed Antennas. WSA 2020: 1-6
2010 – 2019
- 2019
- [j12]Fabian Michler, Kilin Shi, Sven Schellenberger, Tobias Steigleder, Anke Malessa, Laura Hameyer, Nina Neumann, Fabian Lurz, Christoph Ostgathe, Robert Weigel, Alexander Koelpin:
A Clinically Evaluated Interferometric Continuous-Wave Radar System for the Contactless Measurement of Human Vital Parameters. Sensors 19(11): 2492 (2019) - [c65]Sven Schellenberger, Kilin Shi, Jan Philipp Wiedemann, Fabian Lurz, Robert Weigel, Alexander Koelpin:
An Ensemble LSTM Architecture for Clinical Sepsis Detection. CinC 2019: 1-4 - [c64]Niklas Duda, Simon Ripperger, Marco Tschapka, Frieder Mayer, Robert Weigel, Alexander Koelpin:
Wireless Sensor Platform for Detection of Vital Parameters of Bats. EMBC 2019: 1294-1297 - [c63]Sven Schellenberger, Kilin Shi, Fabian Michler, Fabian Lurz, Robert Weigel, Alexander Koelpin:
Respiration Extraction from Radar Heart Sound Measurements. EMBC 2019: 6533-6536 - [c62]Kilin Shi, Sven Schellenberger, Leon Weber, Jan Philipp Wiedemann, Fabian Michler, Tobias Steigleder, Anke Malessa, Fabian Lurz, Christoph Ostgathe, Robert Weigel, Alexander Koelpin:
Segmentation of Radar-Recorded Heart Sound Signals Using Bidirectional LSTM Networks. EMBC 2019: 6677-6680 - [c61]Björn Cassens, Markus Hartmann, Thorsten Nowak, Niklas Duda, Jörn Thielecke, Alexander Kölpin, Rüdiger Kapitza:
Bursting: Increasing Energy Efficiency of Erasure-Coded Data in Animal-Borne Sensor Networks. EWSN 2019: 59-70 - [c60]Martin Frank, Fabian Lurz, Robert Weigel, Alexander Koelpin:
122 GHz Low-cost Substrate Integrated Waveguide based Leaky-Wave Antenna Design. RWS 2019: 1-4 - [c59]Johann Lichtblau, Fabian Lurz, Robert Weigel, Alexander Koelpin:
Measurements for Onboard Communication in a High-Speed Train up to 330 km/h for Selected Scenarios at 2.45 GHz. RWS 2019: 1-3 - [c58]Johann Lichtblau, Fabian Michler, Benedict Scheiner, Fabian Lurz, Martin Graebner, Mira Hundhausen, Robert Weigel, Alexander Koelpin:
Phased Array Approach for Vehicle-to-Infrastructure Communication in Train Stations. RWS 2019: 1-4 - [c57]Sarah Linz, Fabian Lurz, Robert Weigel, Alexander Koelpin:
Extended Ellipse-based Reconstruction Algorithm for Six-port Radar. RWS 2019: 1-3 - [c56]Fabian Michler, Kilin Shi, Sven Schellenberger, Benedict Scheiner, Fabian Lurz, Robert Weigel, Alexander Koelpin:
Pulse Wave Velocity Detection Using a 24 GHz Six-Port Based Doppler Radar. RWS 2019: 1-3 - [c55]Benedict Scheiner, Fabian Lurz, Fabian Michler, Isabella Lau, Johann Lichtblau, Robert Weigel, Alexander Koelpin:
Design of a Rotary Coupler for Data Transmission on Fast Rotating Mechanical Shafts and Roboter Arms. RWS 2019: 1-3 - [c54]Torsten Reissland, Matthias Kuba, Joerg Robert, Alexander Koelpin, Robert Weigel, Fabian Lurz:
Synchronization Approaches and Improvements for a Low-Complexity Power Line Communication System. SmartGridComm 2019: 1-6 - [c53]Niklas Duda, Alexander Barthule, Simon Ripperger, Frieder Mayer, Robert Weigel, Alexander Koelpin:
Non-Invasive Low Power ECG for Heart Beat Detection of Bats. WiSNet 2019: 1-4 - [c52]Stefan Erhardt, Robert Weigel, Alexander Koelpin:
A Small and Lightweight Ultra-Low Power GSM Cell Tracker. WiSNet 2019: 1-4 - [c51]Torsten Reissland, Fabian Lurz, Robert Weigel, Alexander Koelpin:
Compressed Sensing Based Near-Field Radar Target Imaging and Localization Employing Normalized Iterative Hard Thresholding. WiSNet 2019: 1-3 - 2018
- [j11]Fabian Lurz, Thomas Ostertag, Benedict Scheiner, Robert Weigel, Alexander Koelpin:
Reader Architectures for Wireless Surface Acoustic Wave Sensors. Sensors 18(6): 1734 (2018) - [j10]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, Wolfgang Schröder-Preikschat, Rüdiger Kapitza, Jörg Robert, Jörn Thielecke, Robert Weigel, Alexander Koelpin:
BATS: Adaptive Ultra Low Power Sensor Network for Animal Tracking. Sensors 18(10): 3343 (2018) - [c50]Sven Schellenberger, Kilin Shi, Melanie Mai, Jan Philipp Wiedemann, Tobias Steigleder, Björn M. Eskofier, Robert Weigel, Alexander Koelpin:
Detecting Respiratory Effort-Related Arousals in Polysomnographic Data Using LSTM Networks. CinC 2018: 1-4 - [c49]Kilin Shi, Christoph Will, Robert Weigel, Alexander Koelpin:
Contactless person identification using cardiac radar signals. I2MTC 2018: 1-6 - [c48]Martin Frank, Pol Ghesquière, Stefan Kiefl, Robert Weigel, Alexander Koelpin:
Design and characterization of antenna arrays in eWLB package for 61 GHz radar applications. RWS 2018: 14-17 - [c47]Benedict Scheiner, Sebastian Mann, Fabian Lurz, Fabian Michler, Stefan Erhardt, Stefan Lindner, Robert Weigel, Alexander Koelpin:
Microstrip-to-waveguide transition in planar form using a substrate integrated waveguide. RWS 2018: 18-20 - [c46]Benedikt Sanftl, Martin Trautmann, Robert Weigel, Alexander Koelpin:
Fully integrated remote radio head and improved data transmission for inductive power transfer systems. RWS 2018: 174-177 - [c45]Johann Lichtblau, Benedikt Sanftl, Fabian Lurz, Robert Weigel, Alexander Koelpin:
Examination of OFDM for wireless train-onboard communication. RWS 2018: 184-187 - [c44]Kilin Shi, Christoph Will, Tobias Steigleder, Fabian Michler, Robert Weigel, Christoph Ostgathe, Alexander Koelpin:
A contactless system for continuous vital sign monitoring in palliative and intensive care. SysCon 2018: 1-8 - [c43]Stefan Erhardt, Felix Pflaum, Robert Weigel, Alexander Koelpin:
Real-time GSM broadcast receiver on a Cortex-M4 microcontroller. WiSNet 2018: 55-58 - [c42]Fabian Lurz, Patrick Hofstetter, Stefan Lindner, Sarah Linz, Fabian Michler, Robert Weigel, Alexander Koelpin:
Low-power frequency synthesizer for multi-tone six-port radar. WiSNet 2018: 84-87 - [c41]Felix Pflaum, Robert Weigel, Alexander Koelpin:
Ultra-low-power sensor node with wake-up-functionality for smart-sensor-applications. WiSNet 2018: 107-110 - 2017
- [j9]Elena Boshkovska, Derrick Wing Kwan Ng, Nikola Zlatanov, Alexander Koelpin, Robert Schober:
Robust Resource Allocation for MIMO Wireless Powered Communication Networks Based on a Non-Linear EH Model. IEEE Trans. Commun. 65(5): 1984-1999 (2017) - [j8]Fabian Lurz, Stefan Lindner, Sarah Linz, Sebastian Mann, Robert Weigel, Alexander Koelpin:
High-Speed Resonant Surface Acoustic Wave Instrumentation Based on Instantaneous Frequency Measurement. IEEE Trans. Instrum. Meas. 66(5): 974-984 (2017) - [c40]Martin Trautmann, Marius Ohlendorf, Benedikt Sanftl, Robert Weigel, Alexander Koelpin:
Dimensioning and comparison of common compensation topologies for IPT systems. ISCAS 2017: 1-4 - [c39]Matthias Haberl, Benedikt Sanftl, Martin Trautmann, Robert Weigel, Alexander Koelpin:
A direct RF-to-baseband quadrature subsampling receiver using a low cost ADC. RWS 2017: 144-146 - [c38]Matej Kloc, Robert Weigel, Alexander Koelpin:
SDR implementation of an adaptive low-latency IEEE 802.11p transmitter system for real-time wireless applications. RWS 2017: 207-210 - [c37]Sarah Linz, Christoph Will, Fabian Lurz, Stefan Lindner, Sebastian Mann, Robert Schober, Robert Weigel, Alexander Koelpin:
Detector nonlinearity in Six-port radar. WiSNet 2017: 19-22 - [c36]Christoph Will, Sarah Linz, Sebastian Mann, Fabian Lurz, Stefan Lindner, Robert Weigel, Alexander Koelpin:
Segmental polynomial approximation based phase error correction for precise near field displacement measurements using Six-Port microwave interferometers. WiSNet 2017: 23-25 - [c35]Felix Pflaum, Stefan Erhardt, Robert Weigel, Alexander Koelpin:
RSSI-based localization with minimal infrastructure using multivariate statistic techniques. WiSNet 2017: 69-72 - 2016
- [j7]Falko Dressler, Simon Ripperger, Martin Hierold, Thorsten Nowak, Christopher Eibel, Björn Cassens, Frieder Mayer, Klaus Meyer-Wegener, Alexander Koelpin:
From radio telemetry to ultra-low-power sensor networks: tracking bats in the wild. IEEE Commun. Mag. 54(1): 129-135 (2016) - [j6]Frank Steinhäußer, Armin Talai, Gabriela Sandulache, Robert Weigel, Alexander Koelpin, Wolfgang Hansal, Achim Bittner, Ulrich Schmid:
Pulse plated silver metallization on porosified LTCC substrates for high frequency applications. Microelectron. Reliab. 60: 93-100 (2016) - [j5]Alexander Koelpin, Fabian Lurz, Sarah Linz, Sebastian Mann, Christoph Will, Stefan Lindner:
Six-Port Based Interferometry for Precise Radar and Sensing Applications. Sensors 16(10): 1556 (2016) - [c34]Fabian Lurz, Stefan Lindner, Sebastian Mann, Sarah Linz, Robert Weigel, Alexander Koelpin:
Precise and fast frequency determination of resonant SAW sensors by a low-cost Six-Port interferometer. I2MTC 2016: 1-5 - [c33]Stefan Lindner, Robert Weigel, Alexander Koelpin:
A low-cost laser barrier based vectorial velocity measurement system. IEEE SENSORS 2016: 1-3 - [c32]Elena Boshkovska, Alexander Koelpin, Derrick Wing Kwan Ng, Nikola Zlatanov, Robert Schober:
Robust beamforming for SWIPT systems with non-linear energy harvesting model. SPAWC 2016: 1-5 - [c31]Martin Hierold, Markus Hartmann, Simon Ripperger, Frieder Mayer, Albert Heuberger, Robert Weigel, Alexander Koelpin:
Low-weight wireless sensor node for animal encounter detection and dual-band localization. WiSNet 2016: 21-23 - [c30]Christoph Will, Kilin Shi, Fabian Lurz, Robert Weigel, Alexander Koelpin:
Instantaneous heartbeat detection using a cross-correlation based template matching for continuous wave radar systems. WiSNet 2016: 31-34 - [c29]Gabor Vinci, Alexander Koelpin:
Progress of Six-Port technology for industrial radar applications. WiSNet 2016: 48-51 - [c28]Fabian Lurz, Christian Dorn, Stefan Lindner, Sarah Linz, Sebastian Mann, Robert Weigel, Alexander Koelpin:
Digital phase correction for multiplexed ADCs in low-cost Six-Port interferometers. WiSNet 2016: 56-59 - [c27]Kamil Staszek, Sarah Linz, Fabian Lurz, Sebastian Mann, Robert Weigel, Alexander Koelpin:
Improved calibration procedure for six-port based precise displacement measurements. WiSNet 2016: 60-63 - [c26]Sebastian Mann, Fabian Lurz, Sarah Linz, Stefan Lindner, Christoph Will, S. Wibbing, Robert Weigel, Alexander Koelpin:
Substrate integrated waveguide fed antenna for 61 GHz ultra-short-range interferometric radar systems. WiSNet 2016: 64-66 - [c25]Martin Trautmann, Christopher Joffe, Felix Pflaum, Benedikt Sanftl, Robert Weigel, Thomas Heckel, Alexander Koelpin:
Implementation of simultaneous energy and data transfer in a contactless connector. WiSNet 2016: 101-104 - [i2]Elena Boshkovska, Alexander Koelpin, Derrick Wing Kwan Ng, Nikola Zlatanov, Robert Schober:
Robust Beamforming for SWIPT Systems with Non-linear Energy Harvesting Model. CoRR abs/1602.01066 (2016) - [i1]Elena Boshkovska, Derrick Wing Kwan Ng, Nikola Zlatanov, Alexander Koelpin, Robert Schober:
Robust Resource Allocation for MIMO Wireless Powered Communication Networks Based on a Non-linear EH Model. CoRR abs/1609.03836 (2016) - 2015
- [c24]Falko Dressler, Bastian Bloessl, Martin Hierold, Chia-Yu Hsieh, Thorsten Nowak, Robert Weigel, Alexander Koelpin:
Protocol design for ultra-low power wake-up systems for tracking bats in the wild. ICC 2015: 6345-6350 - [c23]Christoph Will, Kilin Shi, Fabian Lurz, Robert Weigel, Alexander Koelpin:
Intelligent signal processing routine for instantaneous heart rate detection using a Six-Port microwave interferometer. ISPACS 2015: 483-487 - [c22]Fabian Lurz, Sebastian Mann, Sarah Linz, Stefan Lindner, Francesco Barbon, Robert Weigel, Alexander Koelpin:
A low power 24 GHz radar system for occupancy monitoring. RWS 2015: 111-113 - [c21]Thorsten Nowak, Alexander Koelpin, Falko Dressler, Markus Hartmann, Lucila Patino, Jörn Thielecke:
Combined localization and data transmission in energy-constrained wireless sensor networks. WiSNet 2015: 4-6 - [c20]Martin Hierold, Simon Ripperger, Darija Josic, Frieder Mayer, Robert Weigel, Alexander Koelpin:
Low-weight wireless sensor network for encounter detection of bats. WiSNet 2015: 11-13 - [c19]Sarah Linz, Florian Oesterle, Armin Talai, Stefan Lindner, Sebastian Mann, Francesco Barbon, Robert Weigel, Alexander Koelpin:
100 GHz reflectometer for sensitivity analysis of MEMS sensors comprising an intermediate frequency Six-port receiver. WiSNet 2015: 20-22 - [c18]Stefan Lindner, Francesco Barbon, Sarah Linz, Fabian Lurz, Sebastian Mann, Robert Weigel, Alexander Koelpin:
ADC depending limitations for Six-Port based distance measurement systems. WiSNet 2015: 29-31 - [c17]Sebastian Mann, Stefan Erhardt, Stefan Lindner, Fabian Lurz, Sarah Linz, Francesco Barbon, Robert Weigel, Alexander Koelpin:
Diode detector design for 61 GHz substrate integrated waveguide Six-Port radar systems. WiSNet 2015: 44-46 - [c16]Michael Sporer, Fabian Lurz, Eberhard Schlücker, Robert Weigel, Alexander Koelpin:
Underwater interferometric radar sensor for distance and vibration measurement. WiSNet 2015: 72-74 - 2014
- [j4]Serioja Ovidiu Tatu, Adriana Serban, Alexander Koelpin, Mohamed Helaoui:
Multiport Technology: New Perspectives and Applications. J. Electr. Comput. Eng. 2014: 194649:1-194649:4 (2014) - [c15]Markus Gardill, Dennis Kay, Robert Weigel, Alexander Koelpin:
Numerical investigations on the quasi-stationary response of antennas to wideband LFMCW excitation. EUSIPCO 2014: 969-973 - [c14]Sebastian Mann, Stefan Lindner, Francesco Barbon, Sarah Linz, Armin Talai, Robert Weigel, Alexander Koelpin:
A tank level sensor based on Six-Port technique comprising a quasi-TEM waveguide. WiSNet 2014: 4-6 - [c13]Armin Talai, Sebastian Mann, Robert Weigel, Alexander Koelpin:
Water temperature measurement by microwave six-port interferometry at 24 GHz. WiSNet 2014: 10-12 - [c12]Francesco Barbon, Stefan Lindner, Sebastian Mann, Sarah Linz, Robert Weigel, Alexander Koelpin:
Fast in-situ diode detector characterization for Six-Port interferometer receivers. WiSNet 2014: 13-15 - [c11]Thorsten Nowak, Martin Hierold, Alexander Koelpin, Markus Hartmann, Hans-Martin Troger, Jörn Thielecke:
System and signal design for an energy-efficient multi-frequency localization system. WiSNet 2014: 55-57 - 2013
- [j3]Sarah Linz, Gabor Vinci, Sebastian Mann, Stefan Lindner, Francesco Barbon, Robert Weigel, Alexander Koelpin:
A Compact, Versatile Six-Port Radar Module for Industrial and Medical Applications. J. Electr. Comput. Eng. 2013: 382913:1-382913:10 (2013) - [c10]Markus Gardill, Klaus Finkenzeller, Walter Hinz, Georg Fischer, Robert Weigel, Alexander Koelpin:
A Review and Comparative Study of On- and Off-Body Performance of Platform-Tolerant UHF RFID Tag Antennas. BODYNETS 2013: 256-262 - [c9]Markus Gardill, Georg Fischer, Robert Weigel, Alexander Koelpin:
Design of a robust and low-cost monocone antenna element for use in vehicle roof-mounted antenna arrays. RWS 2013: 112-114 - [c8]Steffen Mueller, Fabian Lurz, Robert Weigel, Alexander Koelpin:
A high performance line filter for narrowband power line communication testbed applications. SmartGridComm 2013: 690-695 - 2012
- [j2]Benjamin Laemmle, Gabor Vinci, Linus Maurer, Robert Weigel, Alexander Koelpin:
A 77-GHz SiGe Integrated Six-Port Receiver Front-End for Angle-of-Arrival Detection. IEEE J. Solid State Circuits 47(9): 1966-1973 (2012) - [c7]Francesco Barbon, Gabor Vinci, Stefan Lindner, Robert Weigel, Alexander Koelpin:
Signal processing strategies for six-port based Direction of Arrival detector systems. SSD 2012: 1-5 - [c6]Alban Ferizi, Bernhard Hoeher, Melanie Jung, Georg Fischer, Alexander Koelpin:
Design and implementation of a fixed-point radix-4 FFT optimized for local positioning in wireless sensor networks. SSD 2012: 1-4 - [c5]Alexander Kölpin, Gabor Vinci, Francesco Barbon, Stefan Lindner, Georg Fischer, Robert Weigel:
The six-port technology: A low-cost concept for precise position measurements. SSD 2012: 1-5 - [c4]Gunther Dehm-Andone, Raphael Mzyk, Frank Hausknecht, Georg Fischer, Robert Weigel, Alexander Koelpin:
Filter design aspects in analog receiver front-ends for frequency scanning applications. ISSSE 2012: 1-4 - [c3]Alban Ferizi, Philipp Baust, Melanie Jung, Georg Fischer, Robert Weigel, Alexander Koelpin:
An area-efficient 130 nm CMOS baseband processing unit for 24 GHz FMCW radar positioning. ISSSE 2012: 1-5 - [c2]Gabor Vinci, Benjamin Laemmle, Francesco Barbon, Robert Weigel, Alexander Koelpin:
A 77 GHz direction of arrival detector system with SiGe integrated six-port receiver. RWS 2012: 247-250 - [c1]Alexander Koelpin, Stefan Lindner, Gabor Vinci, Benjamin Laemmle, Robert Weigel:
The enhanced six-port architecture: A measurement based proof of concept. WiSNet 2012: 29-32
2000 – 2009
- 2008
- [j1]Sebastian M. Winter, Alexander Koelpin, Robert Weigel:
Six-Port Receiver Analog Front-End: Multilayer Design and System Simulation. IEEE Trans. Circuits Syst. II Express Briefs 55-II(3): 254-258 (2008)
Coauthor Index
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