Imperial College London

Professor Stepan Lucyszyn

Faculty of EngineeringDepartment of Electrical and Electronic Engineering

Professor of Millimetre-wave Systems
 
 
 
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Contact

 

+44 (0)20 7594 6167s.lucyszyn Website CV

 
 
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Assistant

 

Mrs Jay Sahote +44 (0)20 7594 6215

 
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Location

 

602Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

230 results found

Dhillon SS, Vitiello MS, Linfield EH, Davies AG, Hoffmann MC, Booske J, Paoloni C, Gensch M, Weightman P, Williams GP, Castro-Camus E, Cumming DRS, Simoens F, Escorcia-Carranza I, Grant J, Lucyszyn S, Kuwata-Gonokami M, Konishi K, Koch M, Schmuttenmaer CA, Cocker TL, Huber R, Markelz AG, Taylor ZD, Wallace VP, Zeitler JA, Sibik J, Korter TM, Ellison B, Rea S, Goldsmith P, Cooper KB, Appleby R, Pardo D, Huggard PG, Krozer V, Shams H, Fice M, Renaud C, Seeds A, Stoehr A, Naftaly M, Ridler N, Clarke R, Cunningham JE, Johnston MBet al., 2017, The 2017 terahertz science and technology roadmap, JOURNAL OF PHYSICS D-APPLIED PHYSICS, Vol: 50, ISSN: 0022-3727

JOURNAL ARTICLE

Hanham SM, Ahmad MM, Lucyszyn S, Klein Net al., 2017, LED-Switchable High-Q Packaged THz Microbeam Resonators, IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY, Vol: 7, Pages: 199-208, ISSN: 2156-342X

JOURNAL ARTICLE

Muller AA, Sanabria-Codesal E, Moldoveanu A, Asavei V, Lucyszyn Set al., 2017, Extended Capabilities of the 3-D Smith Chart With Group Delay and Resonator Quality Factor, IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, Vol: 65, Pages: 10-19, ISSN: 0018-9480

JOURNAL ARTICLE

Otter W, Ridler NM, Lucyszyn S, 2017, 3D printed waveguides: A revolution in low volume manufacturing for the 21st century, ARMMS RF & Microwave Society Conference, Publisher: ARMMS RF & Microwave Society, Pages: 1-6

3D printing is a disruptive technology, offering the inherent capabilities for creating truly arbitrary 3D structures, with low manufacturing costs associated with low volume production runs. This paper provides an overview of the current progress in 3D printing of metal-pipe rectangular waveguide (MPRWG) components, from 10 GHz to 1 THz, at Imperial College London. First, measurements performed at the UK National Physical Laboratory demonstrate that 3D printed MPRWG performance is comparable to standard commercial waveguides at X-band and W-band. Then, a fully 3D printed X-band dielectric flap tuneable phase shifter and W-band 6th-order inductive iris bandpass filter are demonstrated experimentally. Finally, an optically-controlled 500 GHz IQ vector modulator will also be presented; packaged laser diodes and high resistivity silicon implants are integrated within a hybrid 3D printed split-block module, representing a paradigm shift in additive manufacturing for realizing tuneable THz applications.

CONFERENCE PAPER

Otter WJ, Lucyszyn S, 2017, Printing: the future of THz, Electronics Letters, Vol: 53, Pages: 443-443, ISSN: 0013-5194

3D printing allows for record-breaking, low-cost waveguides operating at 1.1 THz

JOURNAL ARTICLE

Otter WJ, Ridler NM, Yasukochi H, Soeda K, Konishi K, Yumoto J, Kuwata-Gonokami M, Lucyszyn Set al., 2017, 3D printed 1.1 THz waveguides, ELECTRONICS LETTERS, Vol: 53, ISSN: 0013-5194

JOURNAL ARTICLE

Gillatt BTW, D'Auria M, Otter WJ, Ridler NM, Lucyszyn Set al., 2016, 3-D Printed Variable Phase Shifter, IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, Vol: 26, Pages: 822-824, ISSN: 1531-1309

JOURNAL ARTICLE

Hu F, Lucyszyn S, 2016, Advances in Front-end Enabling Technologies for Thermal Infrared 'THz Torch' Wireless Communications, JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES, Vol: 37, Pages: 881-893, ISSN: 1866-6892

JOURNAL ARTICLE

Klein N, Watts C, Hanham SM, Otter WJ, Ahmad MM, Lucyszyn Set al., 2016, Microwave-to-terahertz dielectric resonators for liquid sensing in microfluidic systems, Conference on Terahertz Emitters, Receivers, and Applications VII, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X

CONFERENCE PAPER

Lucyszyn S, Pinuela M, Mitcheson PD, Yates DCet al., 2016, RF energy harvester, US20160181873 A1

PATENT

Muller A, Sanabria-Codesal E, Lucyszyn S, 2016, Computational cost reduction for N+2 order coupling matrix synthesis based on Desnanot-Jacobi identity, IEEE Access, Vol: 4, Pages: 10042-10050

Matrix inversion is routinely performed in computational engineering, with coupling matrix filter synthesis considered here as just one of many example applications. When calculating the elements of the inverse of a matrix, the determinants of the submatrices are evaluated. The recent mathematical proof of the Desnanot-Jacobi (also known as the “Lewis Carol”) identity shows how the determinant of an N+2 order square matrix can be directly computed from the determinants of the N+1 order principal submatrices and N order core submatrix. For the first time, this identity is applied directly to an electrical engineering problem, simplifying N+2 order coupled matrix filter synthesis (general case, which includes lossy and asymmetrical filters). With the general two-port network theory, we prove the simplification using the Desnanot-Jacobi identity and show that the N+2 coupling matrix can be directly extracted from the zeros of the admittance parameters (given by N+1 order determinants) and poles of the impedance parameters (given by the N order core matrix determinant). The results show that it is possible to decrease the computational complexity (by eliminating redundancy), reduce the associated cost function (by using less iterations), and under certain circumstances obtain different equivalent solutions. Nevertheless, the method also proves its practical usefulness under constrained optimizations when the user desires specific coupling matrix topologies and constrained coefficient values (e.g, purely real/imaginary/positive/negative). This can lead to a direct coupling matrix constrained configuration where other similar methods fail (using the same optimization algorithms).

JOURNAL ARTICLE

Otter W, Lucyszyn S, 2016, Hybrid 3-D-printing technology for tunable THz applications, Proceedings of the IEEE, Vol: 105, Pages: 756-767, ISSN: 0018-9219

In recent years, additive manufacturing has experienced rapid growth, due to its inherent capabilities for creating arbitrary 3-D structures, accessibility and associated low manufacturing costs. This paper first reviews the state of the art in 3-D printing for terahertz (THz) applications and identifies the critical features required for such applications. The future potential for this technology is demonstrated experimentally with the first 3-D printed, optically-controlled THz I-Q vector modulator. Here, miniature high-resistivity silicon implants are integrated into metal-pipe rectangular waveguides. The 3-D printed split-block assembly also includes two packaged infrared laser diodes and a heat sink. The measured performance of a proof-of-principle 4-QAM vector modulator that can operate up to 500 GHz is reported. This new hybrid 3-D printing THz technology, which combines semiconductor devices with potentially low cost, high performance passive guided-wave structures represents a paradigm shift and may prove to be an ideal solution for implementing affordable transceivers in future ubiquitous THz applications.

JOURNAL ARTICLE

Otter WJ, Hanham SM, Klein N, Lucyszyn Set al., 2016, Millimeter-wave negative group delay network, URSI Asia-Pacific Radio Science Conference (URSI AP-RASC), Publisher: IEEE, Pages: 1205-1207

CONFERENCE PAPER

Otter WJ, Lucyszyn S, 2016, 3-D Printing of Microwave Components for 21st Century Applications, IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP), Publisher: IEEE

CONFERENCE PAPER

Sun J, Hu F, Lucyszyn S, 2016, Predicting Atmospheric Attenuation under Pristine Conditions between 0.1 and 100 THz, IEEE Access, Vol: 4, Pages: 9377-9399, ISSN: 2169-3536

This multidisciplinary article reports on a research application-led study for predicting atmospheric attenuation, and tries to bridge the knowledge gap between applied engineering and atmospheric sciences. As a useful comparative baseline, the paper focuses specifically on atmospheric attenuation under pristine conditions, over the extended terahertz spectrum. Three well-known simulation software packages are compared and contrasted ('HITRAN on the Web', MODTRAN(RM)4 and LBLRTM). Techniques used for modeling atmospheric attenuation have been applied to investigate the resilience of (ultra-)wide fractional bandwidth applications ('THz Torch') to the effects of molecular absorption. Two extreme modeling scenarios are investigated: horizontal path links at sea level and Earth-space path links. It is shown by example that a basic software package ('HITRAN on the Web') can give good predictions with the former; whereas sophisticated simulation software (LBLRTM) is required for the latter. Finally, with molecular emission included, carrier-to-noise ratio fade margins can be calculated for the effects of line broadening due to changes in macroscopic atmospheric conditions with sub-1 THz ultra-narrow fractional bandwidth applications. Outdoors can be far from pristine, with additional atmospheric contributions only briefly introduced here; further discussion is beyond the scope of this study, but relevant references have been cited.

JOURNAL ARTICLE

D'Auria M, Otter WJ, Hazell J, Gillatt BTW, Long-Collins C, Ridler NM, Lucyszyn Set al., 2015, 3-D Printed Metal-Pipe Rectangular Waveguides, IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY, Vol: 5, Pages: 1339-1349, ISSN: 2156-3950

JOURNAL ARTICLE

Hanham SM, Watts C, Otter WJ, Lucyszyn S, Klein Net al., 2015, Dielectric measurements of nanoliter liquids with a photonic crystal resonator at terahertz frequencies, APPLIED PHYSICS LETTERS, Vol: 107, ISSN: 0003-6951

JOURNAL ARTICLE

Hu F, Lucyszyn S, 2015, Modelling Miniature Incandescent Light Bulbs for Thermal Infrared ‘THz Torch’ Applications, Journal of Infrared, Millimeter, and Terahertz Waves, Vol: 36, Pages: 350-367, ISSN: 1866-6892

The ‘THz Torch’ concept is an emerging technology that was recently introduced by the authors for implementing secure wireless communications over short distances within the thermal infrared (20-100 THz, 15 μm to 3 μm). In order to predict the band-limited output radiated power from ‘THz Torch’ transmitters, for the first time, this paper reports on a detailed investigation into the radiation mechanisms associated with the basic thermal transducer. We demonstrate how both primary and secondary sources of radiation emitted from miniature incandescent light bulbs contribute to the total band-limited output power. The former is generated by the heated tungsten filament within the bulb, while the latter is due to the increased temperature of its glass envelope. Using analytical thermodynamic modelling, the band-limited output radiated power is calculated, showing good agreement with experimental results. Finally, the output radiated power to input DC power conversion efficiency for this transducer is determined, as a function of bias current and operation within different spectral ranges. This modelling approach can serve as an invaluable tool for engineering solutions that can achieve optimal performances with both single and multi-channel ‘THz Torch’ systems.

JOURNAL ARTICLE

Hu F, Otter WJ, Lucyszyn S, 2015, Optically Tunable THz Frequency Metamaterial Absorber, 40th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Publisher: IEEE, ISSN: 2162-2027

CONFERENCE PAPER

Hu F, Sun J, Brindley HE, Liang X, Lucyszyn Set al., 2015, Systems Analysis for Thermal Infrared 'THz Torch' Applications, Journal of Infrared, Millimeter, and Terahertz Waves, Vol: 36, Pages: 474-495, ISSN: 1866-6892

The ‘THz Torch’ concept was recently introduced by the authors for providing secure wireless communications over short distances within the thermal infrared (10-100 THz). Unlike conventional systems, thermal infrared can exploit front-end thermodynamics with engineered blackbody radiation. For the first time, a detailed power link budget analysis is given for this new form of wireless link. The mathematical modeling of a short end-to-end link is provided, which integrates thermodynamics into conventional signal and noise power analysis. As expected from the Friis formula for noise, it is found that the noise contribution from the pyroelectric detector dominates intrinsic noise. From output signal and noise voltage measurements, experimental values for signal-to-noise ratio (SNR) are obtained and compared with calculated predictions. As with conventional communications systems, it is shown for the first time that the measured SNR and measured bit error rate found with this thermodynamics-based system resembles classical empirical models. Our system analysis can serve as an invaluable tool for the development of thermal infrared systems, accurately characterizing each individual channel and, thus, enables the performance of multi-channel ‘THz Torch’ systems to be optimized.

JOURNAL ARTICLE

Jose Sanchez-Martinez J, Marquez-Segura E, Lucyszyn S, 2015, Synthesis and Design of High-Selectivity Wideband Quasi-Elliptic Bandpass Filters Using Multiconductor Transmission Lines, IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, Vol: 63, Pages: 198-208, ISSN: 0018-9480

JOURNAL ARTICLE

Lucyszyn S, Mitcheson PD, Pinuela M, Yates DCet al., 2015, Inductive power transfer system, US20150207334 A1

PATENT

Muller AA, Lucyszyn S, 2015, Properties of purely reactive Foster and non-Foster passive networks, ELECTRONICS LETTERS, Vol: 51, Pages: 1882-1883, ISSN: 0013-5194

JOURNAL ARTICLE

Papantonis S, Lucyszyn S, 2015, Lossy Spherical Cavity Resonators for Stress-testing Arbitrary 3D Eigenmode Solvers, Progress in Electromagnetics Research, Vol: 151, Pages: 151-167, ISSN: 1070-4698

A lossy metal-wall cavity resonator that extends well beyond perturbation theory limitsis studied. An exact analytical solution is employed for the spherical cavity resonator, having wallstransformed from being a perfect electrical conductor (PEC) to free space. This model then acts as anideal benchmark reference standard. A plane-wave approximation is then derived. Independent full-wavenumerical modeling of the spherical cavity resonator is undertaken using eigenmode solvers within twowell-known commercial, industry-standard, simulation software packages (HFSSTMand COMSOL). Ithas been found that the plane-wave approximation model accurately characterizes the results generatedby these solvers when equivalent ¯nite conductivity boundary (FCB) and layered impedance boundary(LIB) conditions are used. However, the impedance boundary (IB) condition is accurately characterizedby the exact model, but the precise value of complex wave impedance at the wall boundary for the specificresonance mode must first be known a priori. Our stress-testing results have profound implications onthe usefulness of these commercial solvers for accurately predicting eigenfrequencies of lossy arbitrary3D structures. For completeness, an exact series RLC equivalent circuit model is given specifcallyfor a spherical cavity resonator having arbitrary wall losses, resulting in the derivation of an extendedperturbation model.

JOURNAL ARTICLE

Sun J, Hu F, Wang Z, Lucyszyn Set al., 2015, Banknote Characterization using a Thermal Infrared 'THz Torch' Spectrometer, Asia-Pacific Microwave Conference (APMC), Publisher: IEEE

CONFERENCE PAPER

Carvalho NB, Georgiadis A, Costanzo A, Rogier H, Collado A, Angel Garcia J, Lucyszyn S, Mezzanotte P, Kracek J, Masotti D, Soares Boaventura AJ, Ruiz Lavin MDLN, Pinuela M, Yates DC, Mitcheson PD, Mazanek M, Pankrac Vet al., 2014, Wireless Power Transmission: R&D Activities Within Europe, IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, Vol: 62, Pages: 1031-1045, ISSN: 0018-9480

JOURNAL ARTICLE

Hu F, Liang X, Lucyszyn S, 2014, Multi-channel Thermal Infrared Communications using Engineered Blackbody Radiation for Security Applications, Conference on Optics and Photonics for Counterterrorism, Crime Fighting, and Defence X; and Optical Materials and Biomaterials in Security and Defence Systems Technology XI, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X

CONFERENCE PAPER

Hu F, Lucyszyn S, 2014, Noise Analysis for Multi-channel 'THz Torch' Thermal Infrared Wireless Communications Systems, 3rd Asia-Pacific Microwave Conference Proceedings (APMC), Publisher: IEEE, Pages: 1276-1278

CONFERENCE PAPER

Hu F, Lucyszyn S, 2014, Emerging thermal infrared ‘THz Torch’ technology for low-cost security and defence applications, THz and Security Applications: Detectors, Sources and Associated Electronics for THz Applications, Editors: Sizov, Corsi, Publisher: Springer Netherlands, Pages: 239-275, ISBN: 978-94-017-8827-4

BOOK CHAPTER

Jose Sanchez-Martinez J, Marquez-Segura E, Lucyszyn S, 2014, Design of Compact Wideband Bandpass Filters Based on Multiconductor Transmission Lines With Interconnected Alternate Lines, IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, Vol: 24, Pages: 454-456, ISSN: 1531-1309

JOURNAL ARTICLE

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