menu

School of Electronic Engineering and Computer Science

People menu

Dr Rostyslav Dubrovka, PhD MSc MBA SMIEEE MIET MOSA

Rostyslav

Lecturer, Terahertz & Quasi Optics Research Unit Manager

Email: r.dubrovka@qmul.ac.uk
Telephone: +44 20 7882 5345
Room Number: Engineering, Eng 360
Website: http://www.elec.qmul.ac.uk/people/rostyslav/

Teaching

Digital Circuit Design (Undergraduate)

The module covers: Number Systems and Codes; Boolean Algebra and Basic Logic Functions; MAP minimisation; Combinational Logic; Synchronous Sequential Logic; VHDL

Electronic Engineering Mathematics 2 (Undergraduate)

Module will cover topics in engineering mathematics relevant to Electronics and Electrical Engineering programs: Vector Calculus (field theory, surface and volume integration, field operators), linear algebra (matrices and matrix operations, applications to systems of equations, reduced Row Echelon Form, determinants, Cramer's rule, eigenvalues and eigenvectors), differential equations (solving first and second order DEs).

Microwave and Millimetrewave Electronics (Undergraduate/Postgraduate)

The module covers: RF SPECTRUM: Revision of basic RF spectrum. Radio transmission bands. Regulatory considerations. MODULATION & DEMODULATION: AM & FM modulation principles; basic modulation & demodulation circuits. Digital modulation principles; basic digital modulation & demodulation circuits. BEHAVIOUR OF ELECTRONIC COMPONENTS AT RF: Behaviour of R, L and C at RF; use of reactance plots and reactance charts. Transistor equivalent circuits for RF applications. COUPLING NETWORKS & FILTERS: The design of RF coupling networks; design of basic Low Pass, High Pass, Band Pass and Band Stop filters. AMPLIFIERS: Revision of basic amplifier circuits. Multi-stage small-signal linear amplifiers. Class B & C amplifiers; switching amplifiers. R.F. & wideband amplifiers. Noise in amplifiers. Principles of feedback & feedforward. Frequency response. MIXERS & OSCILLATORS: Mixer and oscillator theory; basic mixer and oscillator circuits. L.C. tanks, quartz crystals and ceramic resonators. Phase Locked Loops & Frequency Synthesizers.

Research

Research Interests:

My ORCID: 0000-0001-6900-1819
My Scopus: 13405076400

Recent projects I have worked on:
  • Feb 2001 ? Jan 2003, ?Compact Corrugated Horn?
  • Feb 2003 ? Sep 2004, ?Sensor Signature Reduction?
  • Oct 2004 ? April 2006, ?On-body Radio Channel Characterisation for Body-Centric Wireless Communications?
  • May 2006 ? June 2007, ?Low Profile Airborne Antenna Arrays for Synthetic Aperture Radars?
  • 2011 ? now, Lagrangian analysis for molecular dynamics
  • September 2011 - September 2012, "Application of metamaterials for mm-wave earth observation radiometers"
  • January 2013 - now, "Millimetre Wave Sounder for Earth Observation", ESA project, in collaboration with RAL
  • February 2014 - now, "Active Quasi-Optics for Power THz Science", EPSRC project, PI

Current research interests:

  • Active quasi-optical networks and FSS for THz science.
  • Lagrangian analysis of molecular dynamics.
  • Practical applications for wire-media based materials.
  • Special communication applications for safety and security
  • Large antennas and their feed networks

Publications

  • Krasavin AV, Segovia P, Dubrovka R et al. (2018). Generalization of the optical theorem: experimental proof for radially polarized beams. nameOfConference
  • KREOUZIS T, ANDY AS, KNELLER JWE et al. (2018). Estimation of dark and active dielectric constants in the sub-THz frequency domain of an optically tunable organic semiconductor blend of poly(3-hexylthiophene) and phenyl-C61-butyric acid methyl ester. nameOfConference
  • Parini CG, Dubrovka R, Gregson SF (2018). Computational Electromagnetic Modelling of Compact Antenna Test Range Quiet Zone Probing. nameOfConference
  • Andy AS, Kneller JWE, Sushko O et al. (2017). Dynamic organic lens using photosensitive semiconductor (P3HT:PCBM) for millimetre-wave applications. International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017
  • Dickie R, Christie S, Cahill R et al. (2017). Low-Pass FSS for 50-230 GHz Quasi-Optical Demultiplexing for the MetOp Second-Generation Microwave Sounder Instrument. nameOfConference
  • DONNAN RS, Pigeon M, Sushko O et al. (2017). From Simulations to Measurements: Prototyping an Antenna for Non-Linear Applications at Sub-THz Frequencies. nameOfConference
  • Dubrovka R, Sushko O, Pigeon M et al. (2017). Measurements of non-linear sub-THz quasi-optical devices. nameOfConference
  • DONNAN RS, Sushko O, Dubrovka R et al. (2017). Comparative Study of Sub-THz FSS Filters Fabricated by Inkjet Printing, Microprecision Material Printing, and Photolithography. nameOfConference
  • ANDY A, James William Ewart Kneller, Rostyslav Dubrovka et al. (2017). Antenna Array Control via Integrated Optically-Activated Organic Semiconductor for S-Band Applications. European Microwave Conference (EuMC)
  • Pigeon M, Sushko O, Donnan R et al. (2017). Higher harmonic generation: Coupling two radiating elements at two different frequencies. nameOfConference
  • Alizadeh P, Sushko O, Andy AS et al. (2017). Active quasi-optics for high-power THz science. nameOfConference
  • Andy AS, Alizadeh P, Sushko O et al. (2017). Characterisation of a quasi-optical transmissometer for precise measurement of a Sub-THz multenna. nameOfConference
  • Parini CG, Dubrovka R, Gregson SF et al. (2017). Digitally Reconfigurable Approach to Compact Antenna Test Range Design. 2017 11TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP)
  • Sushko O, Pigeon M, Kreouzis T et al. (2016). Investigation of frequency-tripling performance of Schottky diode based multennas to 0.3 THz. 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)
  • Pigeon M, Donnan R, Kreouzis T et al. (2016). Improving harmonics' generation by zeroing-stubs in a slot-ring antenna. 2016 10th European Conference on Antennas and Propagation, EuCAP 2016
  • Sushko O, Pigeon M, Kreouzis T et al. (2016). Low-cost inkjet-printed FSS band-pass filters for 100 and 300 GHz. 2016 10th European Conference on Antennas and Propagation, EuCAP 2016
  • Parini CG, Dubrovka R, Gregson SF et al. (2016). Computational Electromagnetic Modelling of Compact Antenna Test Range Quiet Zone Probing: A Comparison of Simulation Techniques. nameOfConference
  • Parini CG, Dubrovka R, Grcgson SF et al. (2016). Optimizing a CATR Quiet Zone using an Array Feed. nameOfConference
  • Sushko O, Qiu J, Dubrovka R et al. (2015). Sub-terahertz spectroscopy as a probe for protein stability in an ionic environment. nameOfConference
  • Pigeon M, Donnan R, Dubrovka R et al. (2015). Planar quasi-optic THz source: The multenna. nameOfConference
  • Pigeon M, Donnan R, Kreouzis T et al. (2015). Accelerating frequency selective surface simulations: An Equivalent Circuit Method versus computational electromagnetics software - Limits and further developments. nameOfConference
  • Andy A, Dubrovka R, Kreouzis T et al. (2015). An optically controlled phase shifter for antenna array beam steering. nameOfConference
  • Sushko O, Dubrovka R, Donnan RS (2015). Erratum: "Sub-terahertz spectroscopy reveals that proteins influence the properties of water at greater distances than previously detected" [J. Chem. Phys. 142, 055101 (2015)].. nameOfConference
  • Sushko O, Dubrovka R, Donnan RS (2015). Sub-terahertz spectroscopy reveals that proteins influence the properties of water at greater distances than previously detected.. nameOfConference
  • Parini CG, Dubrovka R, Gregson SF et al. (2015). Compact Range Quiet Zone Modelling: Quantitative Assessment using a Variety of Electromagnetic Simulation Methods. nameOfConference
  • Ageyskiy AE, Tyshetskiy Y, Iorsh IV et al. (2014). Theoretical and experimental study of guided modes of the wire medium slab.. nameOfConference
  • Sushko O, Dubrovka R, Donnan RS (2013). Terahertz spectral domain computational analysis of hydration shell of proteins with increasingly complex tertiary structure.. nameOfConference
  • Sushko O, Dubrovka R, Donnan RS (2013). Interpretation of THz absorption spectra of dissolved proteins using molecular dynamics simulations. nameOfConference
  • Belov PA, Dubrovka R, Iorsh I et al. (2013). Single-mode subwavelength waveguides with wire metamaterials. nameOfConference
  • Ilyashenko G, Al-Safadi R, Donnan R et al. (2013). A synthesis of a 1,1 '-desymmetrised ferrocene backbone and its facile one-pot double-"click" functionalisation. nameOfConference
  • Sushko O, Dubrovka R, Donnan RS et al. (2013). Analysis of optical thickness determination of materials by THz-TD S. nameOfConference
  • Dubrovka RF, Martynyuk SE, Belov PA (2013). Practical antenna application of extremely anisotropic materials: reality or fiction?. nameOfConference
  • Dubrovka RF, Sushko OY, Loftus TM et al. (2013). Recent advances in terahertz science at Queen Mary University of London. nameOfConference
  • Sushko A, Shala K, Dubrovka R et al. (2013). Revised metrology for enhanced accuracy in complex optical constant determination by THz-time-domain spectrometry. nameOfConference
  • Sushko O, Dubrovka R, Donnan RS (2012). Interpretive modeling of THz response of biomolecules as filter circuits. nameOfConference
  • Donnan RS, DUBROVKA RF (2012). Biochemical observational science at THz energies. Antenna Theory and Techniques (ICATT), 2011 VIII International Conference on
  • Vasylchenko A, Hennemann C, Dubrovka R (2012). Characterization of the ear-to-ear propagation channel using microstrip dipole antennas. Antenna Theory and Techniques (ICATT), 2011 VIII International Conference on
  • Dubrovka R, Belov P (2012). Near-field manipulation by means of wire media. Antenna Theory and Techniques (ICATT), 2011 VIII International Conference on
  • Sushko O, Donnan R, Dubrovka R et al. (2012). Possibilities and challenges of material parameter extraction by THz time domain spectroscopy. Antenna Theory and Techniques (ICATT), 2011 VIII International Conference on
  • Dubrovka R, Palikaras G, Belov P (2012). Near-Field Antenna Radome Based on Extremely Anisotropic Metamaterial. nameOfConference
  • Donnan R, Dubrovka R (2011). Biochemical observational science at THz energies. nameOfConference
  • DUBROVKA R, Belov P (2011). Enhancing antenna gain using magnifying wire medium. 5th European Conference on Antennas and Propagation (EUCAP)
  • DUBROVKA R, Donnan R (2011). Equivalent circuit of FSS loaded with lumped elements using modal decomposition equivalent circuit method. 5th European Conference on Antennas and Propagation (EUCAP)
  • Vasylchenko A, DUBROVKA R, De Raedt W et al. (2011). Pulse response behavior of a UWB antenna with switchable band-notching feature. 5th European Conference on Antennas and Propagation (EUCAP)
  • Yang B, Donnan RS, Dubrovka R et al. (2011). Negative permeability characterization of gyrotropic hexaferrite in the millimeter wave band for engineering of double-negative devices. nameOfConference
  • DONNAN RS, Yang B, Dubrovka R et al. (2011). Negative Permeability Characterization of Gyrotropic Hexaferrite in the Millimeter Wave Band for Engineering of Double-Negative Devices. nameOfConference
  • Zhao Y, Palikaras G, Belov PA et al. (2010). Magnification of subwavelength field distributions using a tapered array of metallic wires with planar interfaces and an embedded dielectric phase compensator. nameOfConference
  • Dubrovka R, Belov P (2010). Altering antenna performance using magnifying wire medium. nameOfConference
  • Jiang P, BIGHAM J, Dubrovka R et al. (2010). A Statistical Radio Coverage Prediction Approach for Cooperative Control in Relay Based Cellular Networks. EuCAP2010 the 4th European Conference on Antennas and Propagation,2010
  • Dubrovka R, Shirokov IB, IEEE (2010). On-Body Patch Antenna with Parasitic PEC Wall for the Miners Cardiac Rhythm Sensor. nameOfConference
  • Dubrovka R, Belov P, IEEE (2010). Radiotransparent Building Materials. nameOfConference
  • DUBROVKA RF, Shirokov IB (2009). On-body antenna for the miners cardiac rhythm sensor. Loughborough Antennas & Propagation Conference, LAPC 2009
  • Dubrovka FF, DUBROVKA RF, Ovsianyk Y (2009). Cross-polar Radiation of Dual-band coaxial feed horn with partial Dielectric loading. 7th International Conference on Antenna Theory and Techniques
  • Wu J, DUBROVKA RF, Bigham J et al. (2009). Shaping Coverage Using Antenna Arrays For Load-Balancing In Cellular Networks. 7th International Conference on Antennas Theory and Techniques
  • Jiang P, DUBROVKA RF, Donnan RS et al. (2009). Wireless Backhaul In Cellular Networks Using Phased Array Antenna With Optically Controlled Phase Shifter. 7th International Conference on Antennas Theory and Techniques
  • Belov PA, Palikaras G, Zhao Y et al. (2009). Magnification and demagnification with subwavelength resolution by hyperlenses from arrays of metallic wires. 3rd International Congress on Advanced Electromagnetic Materials in Microwaves and Optics
  • Shirokov IB, DUBROVKA RF, Serdyuk IV (2009). The optimization of microwave on-body antenna of the sensor of cardiac rhythm. 3rd European Conference on Antennas and Propagation, 2009
  • DUBROVKA RF, Belov PA, Palikaras G et al. (2009). Transmission, magnification and demagnification of microwave near-field distributions by tapered arrays of wires. 3rd European Conference on Antennas and Propagation, 2009
  • Dubrovka R, Vazquez J, Parini C et al. (2009). Multi-frequency and multi-layer frequency selective surface analysis using modal decomposition equivalent circuit method. nameOfConference
  • Shirokov IB, Dubrovka RF, Serdyuk IV (2009). The Optimization of Microwave on-Body Antenna of the Sensor of Cardiac Rhythm. nameOfConference
  • Dubrovka R, Belov PA, Palikaras G et al. (2009). Transmission, Magnification and Demagnification of Microwave Near-Field Distributions by Tapered Arrays of Wires. nameOfConference
  • Shirokov IB, Serdyuk IV, Dubrovka RF (2008). INVESTIGATION OF THE DIELECTRIC COVER INFLUENCE ON THE MICROSTRIP ANTENNA'S CHARACTERISTICS. nameOfConference
  • Parini CG, HAO Y, Song W et al. (2007). Antennas and propagation for on-body communication systems. nameOfConference
  • Dubrovka FF, Dubrovka RF, Ovsianyk YA (2007). A dualband coaxial dielectric-loaded feed horn. nameOfConference
  • Dubrovka R, Vazquez J, Parini C et al. (2007). Modal decomposition equivalent circuit method application for dual frequency FSS analysis. nameOfConference
  • Dubrovka RF, Vazquez J, Parini CG et al. (2007). Modal decomposition equivalent circuit method application for multilayer FSS. nameOfConference
  • Dubrovka FF, Dubrovka RF, Ovsianyk YA et al. (2007). Recent progress in development of multiband feed horns (review). nameOfConference
  • Dubrovka R, Alomainy A, Parini C et al. (2006). Comparison of antennas for onbody propagation using the method of equivalent currents. nameOfConference
  • Dubrovka R, Vazquez J, Parini C et al. (2006). Equivalent circuit method for analysis and synthesis of frequency selective surfaces. nameOfConference
  • Dubrovka R, Parini C, Hao Y et al. (2006). On-body propagation loss estimation using method of equivalent sources. nameOfConference
  • Nechayev YI, Hall PS, Constantinou CC et al. (2005). On-Body Path Gain Variation with Changing Posture and Antenna Position. The 2005 IEEE AP-S International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, Washington DC, USA, July 3-8, 2005
  • Hall PS, Nechayev YI, Hao Y et al. (2005). Antennas and Propagation for On-Body Communication Systems. Proceedings of the 11th International Symposium on Antenna Technology and Apply Electromagnetics (ANTEM 2005), France, June 15-17, 2005
  • Dubrovka R, Vazquez J, Parini C et al. (2005). Analysis of ring and rectangular slot FSS using a new equivalent circuit method. nameOfConference
  • Clarricoats PJB, Dubrovka RF, Olver AD (2004). High performance compact corrugated horn. nameOfConference
  • Dubrovka FF, Dubrovka RF, Kim OS et al. (2003). Synthesis of offset-fed Gregorian vsat antennas. nameOfConference
Return to top