Position innerhalb des Seitenbaumes

Institut für Robuste Leistungshalbleitersysteme
Institut
Team
Manoliu, Laura

Laura Manoliu

Frau M.Sc.

Wissenschaftliche Mitarbeiterin
Institut für Robuste Leistungshalbleitersysteme

Kontakt

E-Mail
Visitenkarte (VCF)

Pfaffenwaldring 31
70569 Stuttgart
Deutschland

Fachgebiet

Millimeterwellen-Systemanalyse
Demonstration und Analyse von Echtzeit-Multi-Gigabit-Datenübertragung
Digitale Datenverarbeitung und Datenakquisition
Linkbudget-Analyse
E/W-Band Satelliten-Bodenstationsentwurf, Steuerung und Betrieb

Publikationen

J. Wörmann, L. Manoliu, S. Haussmann, M. Krstic, and I. Kallfass, “Real-time Wideband Video Synchronization via an Analog QPSK Costas Loop in a Laboratory Demonstration of an E-Band Satellite Downlink,” in 2024 IEEE Space Hardware Radio Conference (SHaRC), Jan. 2024, pp. 23–26. doi: 10.1109/SHaRC59908.2024.10438501.
- BibTeX
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@inproceedings{10438501, abstract = {A wideband video transmission in E-band from 71 to 76 GHz dedicated to a satellite downlink is demonstrated in a laboratory setup with an analog QPSK Costas loop circuit in 130nm SiGe BiCMOS in the receiver front-end for direct demodulation. A QPSK modulated, uncompressed 4K live video with a total data rate of 6 Gbit/s is received with an EVM of −17.5 dB in real-time at low power consumption due to analog receiver synchronization and without any further synchronization in the digital domain. The Costas loop provides a sufficiently large hold-in range to cover the carrier frequency drift due to the Doppler effect from the satellite overpass and operates with a power efficiency of 940 pJ/bit for the tested video stream data rate.}, author = {Wörmann, Janis and Manoliu, Laura and Haussmann, Simon and Krstic, Milos and Kallfass, Ingmar}, booktitle = {2024 IEEE Space Hardware Radio Conference (SHaRC)}, doi = {10.1109/SHaRC59908.2024.10438501}, month = {01}, pages = {23-26}, title = {Real-time Wideband Video Synchronization via an Analog QPSK Costas Loop in a Laboratory Demonstration of an E-Band Satellite Downlink}, year = 2024 }
L. Manoliu, D. Wrana, B. Schoch, S. Haussmann, A. Tessmann, and I. Kallfass, “Frequency and Phase Investigation of the Local Oscillator Offset in a W-Band Satellite Communication Link,” in 2023 53rd European Microwave Conference (EuMC), Sep. 2023, pp. 360–363. doi: 10.23919/EuMC58039.2023.10290372.
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@inproceedings{10290372, abstract = {This paper discusses an investigation of the local-oscillator (LO) offset in frequency and phase for a W-band communication link, affected by the Doppler effect. To evaluate the carrier frequency offset (CFO), the bit error rate (BER) and the error vector magnitude (EVM) are used as performance metrics. The impact of the CFO on the BER and EVM is analyzed by measuring the BER and EVM of the received signal. The results show that the LO frequency offset has a significant impact on the BER, while the LO phase offset has a negligible effect on system performance. However, both the LO frequency and phase offsets have a significant impact on the EVM. The results of this study can provide a better understanding of the impact of the LO offset on the performance of the W-band satellite communication systems and help improve the tracking and data synchronization methods. The purpose of the paper is to analyze and quantify the effect of the LO offset in homodyne and heterodyne systems and to find the maximum allowed LO offset for correct synchronization, without additional hardware.}, author = {Manoliu, Laura and Wrana, Dominik and Schoch, Benjamin and Haussmann, Simon and Tessmann, Axel and Kallfass, Ingmar}, booktitle = {2023 53rd European Microwave Conference (EuMC)}, doi = {10.23919/EuMC58039.2023.10290372}, month = {09}, pages = {360-363}, title = {Frequency and Phase Investigation of the Local Oscillator Offset in a W-Band Satellite Communication Link}, year = 2023 }
L. Manoliu et al., “The technology platform of the EIVE CubeSat mission for high throughput downlinks at W-band,” Acta Astronautica, vol. 205, pp. 80–93, Apr. 2023, doi: 10.1016/j.actaastro.2023.02.039.
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@article{Manoliu_2023, author = {Manoliu, Laura and Schoch, Benjamin and Haussmann, Simon and Tessmann, Axel and Henneberger, Ralf and Freese, Jens and Steinmetz, Fabian and Wrana, Dominik and Wörmann, Janis and Koller, Markus and Kallfass, Ingmar}, doi = {10.1016/j.actaastro.2023.02.039}, journal = {Acta Astronautica}, month = {04}, pages = {80--93}, publisher = {Elsevier {BV}}, title = {The technology platform of the {EIVE} {CubeSat} mission for high throughput downlinks at W-band}, url = {https://doi.org/10.1016%2Fj.actaastro.2023.02.039}, volume = 205, year = 2023 }
Link
https://doi.org/10.1016%2Fj.actaastro.2023.02.039
I. Kallfass et al., “A W-Band Transmitter Scientific CubeSat Payload,” 2023.
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@inproceedings{kallfass2023wband, author = {Kallfass, Ingmar and Manoliu, Laura and Schoch, Benjamin and Haussmann, Simon and Koller, Markus and Tessmann, Axel and Henneberger, Ralf and Steinmetz, Fabian and Freese, Jens}, eventdate = {8-12 May 2023}, eventtitle = {1st Space Microwave Week}, title = {A W-Band Transmitter Scientific CubeSat Payload}, venue = {ESA-ESTEC, Noordwijk, The Netherlands}, year = 2023 }
S. Jussi et al., “First results from the W-CUBE mission: CubeSat-based characterization of wave propagation of W-band and Q-band signals,” 2023, pp. 1–6.
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@inproceedings{jussi2023first, author = {Jussi, Säily and Janne, Kuhno and Joel, Flavio and Michael, Schmidt and Eveline, Greschitz and Karin, Plimon and Laura, Manoliu and Luis, Cupido}, eventdate = {8-12 May 2023}, eventtitle = {1st Space Microwave Week}, pages = {1-6}, title = {First results from the W-CUBE mission: CubeSat-based characterization of wave propagation of W-band and Q-band signals}, venue = {ESA-ESTEC, Noordwijk, The Netherlands}, year = 2023 }
S. Haussmann et al., “Measurement and Analysis of FDM for E-Band Satellite Communication,” in 2023 53rd European Microwave Conference (EuMC), Sep. 2023, pp. 356–359. doi: 10.23919/EuMC58039.2023.10290622.
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@inproceedings{10290622, abstract = {This paper describes the functional E-band transmission tests of an integrated nano-satellite before launch. The feasibility and performance of a transmission in multiple frequency multiplexed channels is investigated, using the developed payload transmitter and the implemented digital signal generation in its integrated state. Succesful transmission experiments in E-band of four frequency division multiplexed (FDM) channels with a total data rate of 3.2 Gbps over an emulated distance over approximately 530km are demonstrated. The IQ-impairments of these measurement have been verified in a system level simulation, showing the potential of FDM with the given resources and pointing out design requirements for future 6G communication transceiver chipsets.}, author = {Haussmann, Simon and Manoliu, Laura and Gebert, Lukas and Schoch, Benjamin and Koller, Markus and Meier, Jakob and Steinmetz, Fabian and Freese, Jens and Henneberger, Ralf and Tessmann, Axel and Klinkner, Sabine and Kallfass, Ingmar}, booktitle = {2023 53rd European Microwave Conference (EuMC)}, doi = {10.23919/EuMC58039.2023.10290622}, month = {09}, pages = {356-359}, title = {Measurement and Analysis of FDM for E-Band Satellite Communication}, year = 2023 }
H. Gibson, R. Henneberger, A. Tessmann, L. Manoliu, and B. Schoch, “A satellite tracking system at 78 GHz using the over-moded TE21 ground-station antenna pattern,” 2023.
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@inproceedings{hugh2023satellite, author = {Gibson, Hugh and Henneberger, Ralf and Tessmann, Axel and Manoliu, Laura and Schoch, Benjamin}, eventdate = {8-12 May 2023}, eventtitle = {1st Space Microwave Week}, title = {A satellite tracking system at 78 GHz using the over-moded TE21 ground-station antenna pattern}, venue = {ESA-ESTEC, Noordwijk, The Netherlands}, year = 2023 }
D. Wrana, B. Schoch, L. Manoliu, S. Haußmann, A. Tessmann, and I. Kallfass, “Investigation of the Influence of LO Leakage in an E-Band Quadrature Transmitter,” in 2022 14th German Microwave Conference (GeMiC), May 2022, pp. 33–36.
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@inproceedings{9783482, abstract = {This paper discusses the influence of local-oscillator leakage on signal quality based on a homodyne double-balanced quadrature E-band transmitter designed for broadband wireless communication. The varying severeness of the leakage over the local oscillator frequency tuning range from 72 to 88 GHz as well as with changing intermediate frequency input power is measured and evaluated using continuous wave as well as complex modulated signals. With power levels between -22 and 0 dBm at the RF port of the transmitter module, the leaked carrier exceeds the data signal power at some LO frequencies and is also traced back to lead to inherent saturation of the output amplifier. This is identified by evaluation of measured transmitter output spectra and constellation diagrams of the demodulated QPSK signals with baudrates up to 5 GBd.}, author = {Wrana, Dominik and Schoch, Benjamin and Manoliu, Laura and Haußmann, Simon and Tessmann, Axel and Kallfass, Ingmar}, booktitle = {2022 14th German Microwave Conference (GeMiC)}, issn = {2167-8022}, month = {05}, pages = {33-36}, title = {Investigation of the Influence of LO Leakage in an E-Band Quadrature Transmitter}, year = 2022 }
B. Schoch et al., “Performance Optimization of an E-Band Communication Link using Open-Loop Predistortion,” in 2022 14th German Microwave Conference (GeMiC), May 2022, pp. 216–219.
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@inproceedings{9783530, abstract = {This paper demonstrates the performance optimization of a millimeter wave transmit frontend operating in E-band, using a digital predistortion method with an open-loop architecture. The Tx system contains a cascaded amplifier module chain, realized in different technologies, to achieve modulated signals with record output powers of 2 W. An open-loop DPD system with an indirect learning architecture and a Volterra series based nonlinear model has been selected to investigate the improvements in the frequency range from 71 to 76 GHz with bandwidths up to 800 MHz. The transmitter's linearity, signal quality, and spectral regrowth were measured with a modulated signal containing different power levels. Three channels with different sizes, located in the proposed channel arrangements by the ITU, were chosen to exemplarily test the performance of the DPD. An implemented DPD algorithm could demonstrate improvements in signal quality and adjacent channel power.}, author = {Schoch, Benjamin and Wiewel, Florian and Wrana, Dominik and Manoliu, Laura and Haussmann, Simon and Tessmann, Axel and Kallfass, Ingmar}, booktitle = {2022 14th German Microwave Conference (GeMiC)}, issn = {2167-8022}, month = {05}, pages = {216-219}, title = {Performance Optimization of an E-Band Communication Link using Open-Loop Predistortion}, year = 2022 }
L. Manoliu, R. Henneberger, A. Tessmann, J. Seidel, M. Eppard, and I. Kallfass, “Impairments of Atmospheric Attenuation on a Wideband E-Band Outdoor Communication Link,” in 2021 51st European Microwave Conference (EuMC), IEEE, Apr. 2022. doi: 10.23919/eumc50147.2022.9784215.
- BibTeX
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@inproceedings{Manoliu_2022, author = {Manoliu, Laura and Henneberger, Ralf and Tessmann, Axel and Seidel, Jochen and Eppard, Michael and Kallfass, Ingmar}, booktitle = {2021 51st European Microwave Conference ({EuMC})}, doi = {10.23919/eumc50147.2022.9784215}, month = {04}, publisher = {{IEEE}}, title = {Impairments of Atmospheric Attenuation on a Wideband E-Band Outdoor Communication Link}, url = {https://doi.org/10.23919%2Feumc50147.2022.9784215}, year = 2022 }
Link
https://doi.org/10.23919%2Feumc50147.2022.9784215
J. Flavio, M. Schmidt, E. Greschitz, K. Plimon, L. Manoliu, and I. Kallfass, First Results of the W and Q-band Beacon Measurements with a LEO CubeSat. 2022.
- BibTeX
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@proceedings{flavio2022first, author = {Flavio, Joel and Schmidt, Michael and Greschitz, Eveline and Plimon, Karin and Manoliu, Laura and Kallfass, Ingmar}, eventtitle = {27th Ka and Broadband Communications Conference}, title = {First Results of the W and Q-band Beacon Measurements with a LEO CubeSat}, venue = {Stresa, Italy}, year = 2022 }
L. Manoliu, B. Schoch, M. Koller, J. Wieczorek, S. Klinkner, and I. Kallfass, “High-speed FPGA-Based Payload Computer for an In-Orbit Verification of a 71–76 GHz Satellite Downlink,” in 2021 IEEE Space Hardware and Radio Conference (SHaRC), Jan. 2021, pp. 21–24. doi: 10.1109/SHaRC51853.2021.9375827.
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@inproceedings{9375827, abstract = {This paper introduces the system architecture, implementation and measured characterization of the FPGA-based adaptive onboard payload computer used for an in-orbit verification of an E-band high bandwidth communication system. The mission goal is to evaluate the atmospheric effects on a multiGigabit data-downlink, in the frequency range of 71–76 GHz with a data rate of minimum 10 Gbit/s, from a 6U CubeSat in low earth orbit to a ground station. The miniaturized onboard payload computer in conjunction with a fast digital-to-analog converter shall serve as an arbitrary waveform generator and as image processing unit.}, author = {{Manoliu}, L. and {Schoch}, B. and {Koller}, M. and {Wieczorek}, J. and {Klinkner}, S. and {Kallfass}, I.}, booktitle = {2021 IEEE Space Hardware and Radio Conference (SHaRC)}, doi = {10.1109/SHaRC51853.2021.9375827}, month = {01}, pages = {21-24}, title = {High-speed FPGA-Based Payload Computer for an In-Orbit Verification of a 71–76 GHz Satellite Downlink}, year = 2021 }
L. Manoliu, S. Kumari, and I. Kallfass, “Variable-coded modulation and error-free transmission algorithms for an Exploratory In-orbit Verification of an E-Band (71-76 GHz) Satellite Link,” in 38th International Communications Satellite Systems Conference (ICSSC 2021), Institution of Engineering and Technology, 2021. doi: 10.1049/icp.2022.0568.
- BibTeX
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@inproceedings{Manoliu_2021, author = {Manoliu, L. and Kumari, S. and Kallfass, I.}, booktitle = {38th International Communications Satellite Systems Conference ({ICSSC} 2021)}, doi = {10.1049/icp.2022.0568}, publisher = {Institution of Engineering and Technology}, title = {Variable-coded modulation and error-free transmission algorithms for an Exploratory In-orbit Verification of an E-Band (71-76 {GHz}) Satellite Link}, url = {https://doi.org/10.1049%2Ficp.2022.0568}, year = 2021 }
Link
https://doi.org/10.1049%2Ficp.2022.0568
I. Kallfass et al., “Towards the Exploratory In-Orbit Verification of an E/W-Band Satellite Communication Link,” in 2021 IEEE MTT-S International Wireless Symposium (IWS), IEEE, May 2021. doi: 10.1109/iws52775.2021.9499586.
- BibTeX
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@inproceedings{Kallfass_2021, author = {Kallfass, I. and Manoliu, L. and Schoch, B. and Koller, M. and Klinkner, S. and Freese, J. and Tessmann, A. and Henneberger, R.}, booktitle = {2021 {IEEE} {MTT}-S International Wireless Symposium ({IWS})}, doi = {10.1109/iws52775.2021.9499586}, month = {05}, publisher = {{IEEE}}, title = {Towards the Exploratory In-Orbit Verification of an E/W-Band Satellite Communication Link}, url = {https://doi.org/10.1109%2Fiws52775.2021.9499586}, year = 2021 }
Link
https://doi.org/10.1109%2Fiws52775.2021.9499586
B. Schoch, L. Manoliu, J. Keim, S. Chartier, and I. Kallfass, “Link budget analysis of E- and W-band satellite services,” 2019, pp. 1–8. [Online]. Available: https://proceedings.kaconf.com/edizione.php?edizione=2019
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@inproceedings{schoch2019budget, author = {Schoch, Benjamin and Manoliu, Laura and Keim, Jonas and Chartier, Sebastien and Kallfass, Ingmar}, eventtitle = {25th Ka and Broadband Communications Conference}, pages = {1-8}, title = {Link budget analysis of E- and W-band satellite services}, url = {https://proceedings.kaconf.com/edizione.php?edizione=2019}, venue = {Sorrento, Italy}, year = 2019 }
Link
https://proceedings.kaconf.com/edizione.php?edizione=2019
I. A. Mocanu and L. Manoliu, “Dual Band Metamaterial Power Divider with Improved Relative Bandwidth for LTE Applications,” in 2019 12th German Microwave Conference (GeMiC), Mar. 2019, pp. 36–39. doi: 10.23919/GEMIC.2019.8698192.
- BibTeX
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@inproceedings{8698192, author = {Mocanu, Iulia Andreea and Manoliu, Laura}, booktitle = {2019 12th German Microwave Conference (GeMiC)}, doi = {10.23919/GEMIC.2019.8698192}, issn = {2167-8022}, month = {03}, pages = {36-39}, title = {Dual Band Metamaterial Power Divider with Improved Relative Bandwidth for LTE Applications}, year = 2019 }
L. Manoliu, C. Grötsch, and I. Kallfass, “Design and Optimization of Mixers Using Load-Pull Analysis of Higher Order Intermodulation Products,” in 2019 12th German Microwave Conference (GeMiC), Mar. 2019, pp. 135–138. doi: 10.23919/GEMIC.2019.8698173.
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@inproceedings{8698173, abstract = {This work proposes an innovative approach to improve the design of frequency-converting circuits. The novelty is the determination of the precise optimal impedance at each harmonic and inter-modulation frequency that will improve the performance of the mixer cell. The method takes into account the effect of the load impedances at inter-modulation frequencies on the conversion gain of the circuit. The proposed method can be applied to the optimization of any figure of merit. The optimal performance is found by varying load impedances, along with frequency, separately controlled using an ideal filter network at one or several mixer ports. The proposed load-pull analysis is applied to the optimization of a resistive mixer as a millimeter-wave monolithic integrated circuit, having a local oscillator frequency of 300 GHz and radio frequency bandwidth of 88 GHz. It is shown that by filtering the harmonics and presenting specific impedances, the conversion gain increases by more than 2.5 dB, while the radio frequency 3 dB-bandwidth has doubled. With the help of this analysis, the output matching network can be optimized.}, author = {{Manoliu}, L. and {Grötsch}, C. and {Kallfass}, I.}, booktitle = {2019 12th German Microwave Conference (GeMiC)}, doi = {10.23919/GEMIC.2019.8698173}, issn = {2167-8022}, month = {03}, pages = {135-138}, title = {Design and Optimization of Mixers Using Load-Pull Analysis of Higher Order Intermodulation Products}, url = {https://ieeexplore.ieee.org/document/8698173/}, year = 2019 }
Link
https://ieeexplore.ieee.org/document/8698173/
L. Manoliu and I.-A. Mocanu, “Investigation of the directional coupler composed of micro-strip metamaterial transmission lines.,” in TSP, IEEE, 2016, pp. 170–173. [Online]. Available: http://dblp.uni-trier.de/db/conf/tsp/tsp2016.html#ManoliuM16
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@inproceedings{conf/tsp/ManoliuM16, author = {Manoliu, Laura and Mocanu, Iulia-Andreea}, booktitle = {TSP}, crossref = {conf/tsp/2016}, ee = {http://dx.doi.org/10.1109/TSP.2016.7760852}, isbn = {978-1-5090-1288-6}, pages = {170-173}, publisher = {IEEE}, title = {Investigation of the directional coupler composed of micro-strip metamaterial transmission lines.}, url = {http://dblp.uni-trier.de/db/conf/tsp/tsp2016.html#ManoliuM16}, year = 2016 }
Link
http://dblp.uni-trier.de/db/conf/tsp/tsp2016.html#ManoliuM16
E. S. Lupu et al., “Investigation of the surface deformation and dendritic solidification of a titanium alloy melted in miligravity,” Proceedings of the International Astronautical Congress, IAC, vol. 13, pp. 10081–10090, 2013.
- BibTeX
BibTeX
@article{Manoliu2013, author = {Lupu, E.S. and Ciuca, I. and Manoliu, L. and Chitu, C. and Cherciu, C. and Ciobanu, I. and Muresan, C.A. and Dragomir, D. and Nachila, C. and Soare, C.}, journal = {Proceedings of the International Astronautical Congress, IAC}, pages = {10081-10090}, title = {Investigation of the surface deformation and dendritic solidification of a titanium alloy melted in miligravity}, volume = 13, year = 2013 }

Offene studentische Arbeiten

Auch auf Deutsch verfügbar und auch auf Nachfrage:

Beteiligt am SUPER-Programm der Universität Stuttgart

Performance analysis of fully integrated transmit and receive RF frontends used in ultra-high data rate wireless communication links

Lehre

Seminar Selected Topics on Power and Microwave Electronics (Summer Semester)

Grundlagepraktikum (am ILH)

Beteiligt als Mentorin am TryScience Programm der Universität Stuttgart

Projektbeteiligung

Projekt EIVE - Exploratory In-Orbit Verification of an E/W-Band Satellite Communication Link
Projekt W-Cube - ESA W-Band CubeSat
Projekt EIVE-T - Exploratory In-Orbit Verification of an E/W-Band Satellite Communication Link, Terrestrial Mission

Laufende Studentenarbeiten

Atmospheric Effects on E-Band (71-76 GHz and 81-86 GHz) duplex communication links
Active antenna tracking for E/W band satellite transmissions

Abgeschlossene Studentenarbeiten

EVM investigation and optimization for the on-board self-developed AWG implemented on the FPGA for a satellite mission
FPGA implementation of an adaptive, real-time, energy-efficient data rate tuning algorithm
FPGA implementation of energy-efficient real-time image compression algorithms (OPUS link: http://dx.doi.org/10.18419/opus-12569)
Analogue filters implementation for improving the EVM for the EIVE satellite mission
Online, onboard data processing for high data rate communications systems applied in the EIVE satellite mission
Strahlenschutzmechanismen für den Nutzdatencomputer der EIVE-Satellitenmission (OPUS link: http://dx.doi.org/10.18419/opus-12495)
Channel modeling and investigation of atmospheric effects on E-Band (71-76 GHz and 81-86 GHz) communication links
Entwicklung eines induktiven Heizsystems zur Temperaturregelung einer terrestrischen Antenne
E-band long-distance outdoor wireless communication system: health monitoring & automation (internship)
Digital Self-Interference Cancellation for Duplex Wireless Communication System using FPGA (OPUS link: http://dx.doi.org/10.18419/opus-13117 )
Search Algorithms for the Ground Station Antenna of the EIVE Satellite (OPUS link: http://dx.doi.org/10.18419/opus-13695)

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Laura Manoliu

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