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Space Technology

Activity of the research group:

The research team is involved in the design and construction of the equipment to be operated in outer space. This is primarily an engineering, technological activity, during which units of spacecraft and satellites for the purpose of a scientific or on-board service system are made. At the same time, the group is also developing satellite-based equipment for scientific purposes. This includes the construction of ground support units and test equipment. The group is also involved in theoretical research related to space technology.

Recent results:

• ESA BEXUS BioDos experiment (2012)
  • ESA balloon experiment, 1 year student program, effects of radiation on DNA sample, with Semmelweis university
• ESA REXUS Gekko experiment (2013)
  • ESA rocket experiment (100 km altitude). Ion density measurement at high altitude
• ESA Rosetta mission, power system of Philae lander (2004-16)
• ESA ESEO mission, power distribution unit (2006-20)
• ESA ESEO mission Langmuir probe (2006-20)
  • Ion density measurement
• ESA Alphasat TDP#5 propagation and communication experiment, receiver station (2014-)
• ISS EKTC power system for phase controlled antenna system (2014-17)

Special infrastructure:

ANGELANTONI / ACS HYGROS 250 klímakamra • Helmholtz tekercs

Recent projects:

ESA pályázatok

International relations:

ESA • Sitael SPA • Joanneum Research • Politecnico di Milano • TU Graz

Industrial partners:

BHE Bonn Hungary Electronics ltd. • MTA ELKH Földfizikai és Űrtudományi Kutatóintézet • Totaltel Telecom kft.

Radar and Remote Sensing

Activity of the research group:

Microwave active and passive remote sensing

• decision and estimation theory
• classification
• antenna systems
• RCS fluctuation
• micro-Doppler
• radar modulation
• passive radar
• holographic radar
• CUAV radar
• WAMLAT
• RF, KF, digital KF, SP circuits

Smart antenna systems

• digital beamforming, electronically scanning antenna
• Radio direction finding techniques
• Interference and jammer filtering techniques
• multibeam antennas
• Antennas and antenna systems realisation

Sensor fusion

• sensor fusion theory
• CUAV applications
• object protection and border surveillance applications

Small satellites and ground stations

• Automated and remote controlled satellite control and receiving stations
• educational small satellite: power supply system, on-board computer, radio communication system, experiment as payload
• satellite system integration
• small satellite operation

Recent results:

• Holographic radar demonstrator for drone detection
• Passive radar demonstrator using fused FM and DVB-T illuminator
• Micro-Doppler demonstrator
• radio direction finding demonstrator
• Radar tester demonstrator
• Smart antenna system demonstrators
• CUAV system
• wave propagation studies in densely vegetated areas
• Investigation of broadcast transmitters’ radiation intensity in the altitude range 0-kb.30km
• First four Hungarian satellites at the Technical University of Technology: MaSat-1, Smog-P, ATL-1, Smog-1
• BME full remote satellite ground station

Special infrastructure:

Rohde & Schwarz ZNA Vector Network Analyzer 10 MHz to 43.5 GHz • Rhode&Schwarz Vector Signal generator SMBV100B • Rhode&Schwarz Signal Analyzer FSV • Agilent Vector Signal generator E4438C • Agilent S Parameter Network Analyzer 8753ES • Rhode&Schwarz Spectrum Analyzer FSH3 • Oscilloscopes

Recent projects:

Piaci KFI

Industrial partners:

MH Institute for Modernisation • NKE • ATOMKI • Hungarocontrol Zrt. • WIGNER • BHE Kft. • metALCOM ZRt. • Pro Patria Electronics Kft. • Tungsram Operations Kft. • MVM Paks II. Zrt.

Microwave and optical telecommunication systems

Activity of the research group:

Wave propagation, systems engineering and physical layer aspects of bulk antenna techniques. Investigation of massive MIMO systems. Cognitive radio, modulation techniques for opportunistic spectrum usage, signal processing issues, software radio applications. Validation of electromagnetic field computation models for radio devices. Modulation, coding and synchronisation issues in satellite communications. DRM30 and UHF DVB coverage optimisation.

Recent results:

• Development of the DSP part of the ground station for the Alphasat satellite reception experiments
• Development of telemetry for SMOG-P/SMOG-1/ATL-1 satellites, reception software
• DARPA Spectrum Collaboration Challenge results
• Participation in the development of the IEEE/IEC 62704 standard
• Optimisation of the Hungarian DVB-T2 network (with Antenna Hungária)

Special infrastructure:

AWR Microwave Office • DRM Content Server • VNA 40GHz / 4GHz (HP) • VSA 3.5GHz, 7GHz (R&S FSIQ) • EMI transducer (R&S ESCS) • Spectrum analysers up to 7 GHz • SDRs (USRP X310 2 db, PlutoSDR ~10 pcs, USRP2 4 pcs, USRP 2 pcs) • Communication analysers (R&S CMU, EFA, DVG, DVMD, …) • Broadcasting transmitters (DVB-T, FM, DAB) • Oscilloscopes, signal generators • DWDM set • Basic optical instruments

Recent projects:

ESA, Alphasat • EFOP

International relations:

Joanneum Research, Ausztria

Industrial partners:

Ericsson Hungary • SZOMEL Kft.

Quantum communication and computing

Activity of the research group:

Quantum communication solutions: quantum key distribution systems – wired and satellite. Quantum channel modelling, medium access solutions. Scalability issues in quantum networks (Internet). Development of urban, national and cross-border quantum key distribution systems in the context of EU efforts. Application of classical optical networks for the transmission of quantum information. Solving classically computationally intensive problems on quantum information principles. Programming methods for quantum computers. Development of quantum random number generation solutions.

Recent results:

• First domestic QKD system
  • implementation also
• optical based quantum random number generator
  • implementation also
• quantum wifi protocol
  • simulation, quantum memory required, not yet available

Special infrastructure:

QKD equipment • QRNG equipment

Recent projects:

Hunqutech • National Laboratory for Quantum Computing

International relations:

Univ. Of Southampton • Florida International University • Austrian Academy of Sciences • University of Ljubljana • University of Aveiro

Industrial partners:

ELKH Wigner Physics Research Centre • ELTE TTK and IK • Ericsson • BHE Bonn Hungary

Electromagnetic Simulation and Design

Activity of the research group:

• Theory of electromagnetic fields (classical electrodynamics in engineering perspectives, including the relativistic theory).
• Teaching activity in the field of electromagnetics (at the faculties “VIK” and “GPK”), continuous development of the scope of the courses, and integration of the new scientific results in the education.
• Research in the field of development and implementation of numerical techniques (finite elements, finite differences (time domain), integral equations, finite integrals, ray tracing, etc.)
• Research in the field of inverse and optimization problems.
• Data-fit surrogate models (mesh-based, sparse grid, kriging), inversion, optimization, deterministic and stochastic approaches, sensitivity analysis (e.g., Sobol’ indices), machine learning, etc.
• Constitutive models, homogenization: magnetic materials, superconductors, artificial materials (frequency-selective surfaces, meta-materials).
• Research in the field of wave propagation and scattering problems.
• Participation in RDI projects in which the above competences can be applied:
  • nondestructive testing and evaluation (NDT&E)
  • wireless power transfer (WPT): capacitive and inductive (resonant) coupling
  • integrated optics, optical fibers (microbending loss)
  • superconducting coil design
  • wave propagation and scattering: deterministic and stochastic models, micro-Doppler effect
  • analysis and design of microwave devices: antennas, anechoic chamber, MRI RF coil
  • radiating near field: SAR prediction, validation of computational methods,
  • simulations related to driving assistant radars
  • finite element calculation (element by element method) on CUDA card

Recent results:

• Modeling of capacitive and inductive wireless power transfer for device design and optimization
• Modeling of Litz-wires for accurate calculation of ohmic loss
• Application of sensitivity analysis based on Sobol’ indices for electromagnetic models
• Antenna near field modeling and development of methods for validation of numerical simulations thereof
• Automotive EMC measurements: numerical model development
• Robust semi-analytical formulation for the modeling of millimeter-wave scattering
• Modeling of spiral superconductor coil

Recent projects:

OTKA

International relations:

Universite Paris-Saclay • Furukawa Electric Co., Ltd ., Hiratsuka, Japan • CEA-LIST, Saclay, France • Czech Technical University in Prague

Industrial partners:

Bosch • Pro Patria Electronics • FETI

Antennas, Radiowave propagation and EMC

Activity of the research group:

The group deals with the simulation, design, implementation and calibration of antennas and associated high frequency active and passive circuits. For these studies, a unique facility at the university is provided, an electromagnetically shielded and anechoic measurement laboratory, in which the operation of the equipment can be investigated in a completely noise and reflection free environment. The laboratory is also suitable for testing electromagnetic compatibility and the biological effects of electromagnetic fields. A major research area is the optimisation and design of mobile radio networks.

Recent results:

• As part of the move to building V1, the EMC antenna measurement room was completed with the support of the faculty, and measurements started in 2013-14,
• The mechanics of the EMC antenna measurement room’s rotator for the measurement object has been completed (in 2018-19), and the rotator control electronics are currently being designed,
• Several antennas have been developed for 26GHz and 76GHz in an industrial collaboration up to implementation in collaboration with Nivelco (ongoing since 2016)

Special infrastructure:

Antenna/EMC Measurement Room • Radiation Meter RAHAM Model 50 • Aaronia Spectran NF-1010 Field Meter • Agilent 8753ES Network Analyzer • Agilent N9340B Spectrum Analyzer • LRC Meter HP 4285 A • Keysight N9914A FieldFox Handheld RF Analyzer

Recent projects:

KME • ESA

International relations:

Karlsruhe Institute of Technology

Industrial partners:

Nivelco • Magyar Telekom • NMHH