Andrei Vorobiev

Senior Researcher at Terahertz and Millimetre Wave Laboratory

Contact Details ORCID

Publications (177)
Projects (6)

Showing 177 publications

2022

Terahertz biometric sensors for fingerprint scanning

Isabel Harrysson Rodrigues, Andrei Vorobiev, Xinxin Yang

Preprint

2022

Evidence of quasi-ballistic transport limiting fT in graphene field-effect transistors

Isabel Harrysson Rodrigues, Andrei Vorobiev

Preprint

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2022

Graphene FET on diamond for high-frequency electronics

Muhammad Asad, Saman Majdi, Andrei Vorobiev et al

IEEE Electron Device Letters. Vol. 43 (2), p. 300-303

Journal article

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2022

Low-field mobility and high-field velocity of charge carriers in InGaAs/InP high-electron-mobility transistors

Isabel Harrysson Rodrigues, Andrei Vorobiev

IEEE Transactions on Electron Devices. Vol. 69 (4), p. 1786-1791

Journal article

2022

Geometrical magnetoresistance effect and mobility in graphene field-effect transistors

Isabel Harrysson Rodrigues, Andrey Generalov, Miika Soikkeli et al

Applied Physics Letters. Vol. 121 (1)

Journal article

2022

Geometrical magnetoresistance effect and mobility in graphene field-effect transistors (Sep, 10.1063/5.0123667, 2022)

Isabel Harrysson Rodrigues, Anamul Md Hoque, Andrei Vorobiev

Other

2022

Charge carrier transport in graphene field-effect transistor scaled down to submicron gate lengths

Isabel Harrysson Rodrigues, Andrei Vorobiev

2022 Compound Semiconductor Week, CSW 2022

Paper in proceeding

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2022

Mobility and quasi-ballistic charge carrier transport in graphene field-effect transistors

Isabel Harrysson Rodrigues, Niklas Rorsman, Andrei Vorobiev

Journal of Applied Physics. Vol. 132, p. 244303-1-244303-9

Journal article

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2021

Enhanced high-frequency performance of top-gated graphene FETs due to substrate-induced improvements in charge carrier saturation velocity

Muhammad Asad, Kjell Jeppson, Andrei Vorobiev et al

IEEE Transactions on Electron Devices. Vol. 68 (2), p. 899-902

Journal article

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2021

Integrated 10-GHz Graphene FET Amplifier

Ahmed Hamed, Muhammad Asad, Muh-Dey Wei et al

IEEE Journal of Microwaves. Vol. 1 (3), p. 821-826

Journal article

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2021

Thermoelectric graphene photodetectors with sub-nanosecond response times at terahertz frequencies

Leonardo Viti, Alisson R. Cadore, Xinxin Yang et al

Frontiers in Optics and Photonics, p. 89-98

Book chapter

2021

Terahertz Rectennas on Flexible Substrates Based on One-Dimensional Metal–Insulator–Graphene Diodes

Andreas Hemmeter, Xinxin Yang, Zhenxing Wang et al

ACS Applied Electronic Materials. Vol. 3 (9), p. 3747-3753

Journal article

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2021

High-speed hBN/graphene/hBN room-temperature terahertz nano-receivers

Leonardo Viti, Alisson R. Cadore, David G. Purdie et al

Proceedings of SPIE - The International Society for Optical Engineering. Vol. SPIE 11685

Paper in proceeding

2021

Evaluation and Study of Mobility in GFETs by geometrical magnetoresistance

Isabel Harrysson Rodrigues, Andrei Vorobiev, Jan Stake

Other conference contribution

2020

Does carrier velocity saturation help to enhance fmax in graphene field-effect transistors?

Pedro C. Feijoo, Francisco Pasadas, Marlene Bonmann et al

Nanoscale Advances. Vol. 2 (9), p. 4179-4186

Journal article

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2020

A linear-array of 300-GHz antenna integrated GFET detectors on a flexible substrate

Xinxin Yang, Andrei Vorobiev, Jian Yang et al

IEEE Transactions on Terahertz Science and Technology. Vol. 10 (5), p. 554-557

Journal article

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2020

Describing broadband terahertz response of graphene FET detectors by a classical model

Xinxin Yang, Andrei Vorobiev, Kjell Jeppson et al

IEEE Transactions on Terahertz Science and Technology. Vol. 10 (2), p. 158-166

Journal article

2020

Direct nanoscopic observation of plasma waves in the channel of a graphene field-effect transistor

Amin Soltani, Frederik Kuschewski, Marlene Bonmann et al

Light: Science and Applications. Vol. 9 (1)

Other text in scientific journal

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2020

Distinction of the thermoelectric effect in graphene FET THz detectors

Andrey Generalov, F. Ludwig, Mohsen Ahmadi et al

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz. Vol. 2020-November, p. 504-505

Paper in proceeding

2020

Effects of self-heating on fT and fmax performance of graphene field-effect transistors

Marlene Bonmann, Marijana Krivic, Xinxin Yang et al

IEEE Transactions on Electron Devices. Vol. 67 (3), p. 1277-1284

Journal article

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2020

Thermoelectric graphene photodetectors with sub-nanosecond response times at terahertz frequencies

Leonardo Viti, Alisson R. Cadore, Xinxin Yang et al

Nanophotonics. Vol. 10 (1), p. 89-98

Journal article

2020

The dependence of the high-frequency performance of graphene field-effect transistors on channel transport properties

Muhammad Asad, Marlene Bonmann, Xinxin Yang et al

IEEE Journal of the Electron Devices Society. Vol. 8, p. 457-464

Journal article

2020

High-speed, low-noise thermoelectric graphene detectors at terahertz frequencies

Leonardo Viti, Alisson R. Cadore, David G. Purdie et al

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz. Vol. 2020-November, p. 302-302

Paper in proceeding

2019

Graphene Field-Effect Transistors for Millimeter Wave Amplifiers

Andrei Vorobiev, Marlene Bonmann, Muhammad Asad et al

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz. Vol. 2019-September

Paper in proceeding

2019

RF properties of carbon nanotube / Copper composite through silicon via based CPW structure for 3D integrated circuits

Andreas Nylander, Marlene Bonmann, Andrei Vorobiev et al

2019 IEEE 14th Nanotechnology Materials and Devices Conference, NMDC 2019

Paper in proceeding

2019

High frequency noise characterisation of graphene field-effect transistors at different temperatures

Junjie Li, Xinxin Yang, Marlene Bonmann et al

Conference poster

2019

Effects of self-heating on high-frequency performance of graphene field-effect transistors

Marlene Bonmann, Marijana Krivic, Muhammad Asad et al

Other conference contribution

2019

Unveiling the plasma wave in the channel of graphene field-effect transistor

Amin Soltani, Frederik Kuschewski, Marlene Bonmann et al

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz. Vol. 2019-September

Paper in proceeding

2019

Correlation between material quality and high frequency performance of graphene field-effect transistors

Muhammad Asad, Marlene Bonmann, Xinxin Yang et al

Other conference contribution

2019

Wide Bandwidth Terahertz Mixers Based On Graphene FETs

Xinxin Yang, Andrei Vorobiev, Kjell Jeppson et al

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz. Vol. 2019-September

Paper in proceeding

2019

Graphene field-effect transistors with high extrinsic fT and fmax

Marlene Bonmann, Muhammad Asad, Xinxin Yang et al

IEEE Electron Device Letters. Vol. 40 (1), p. 131-134

Journal article

2018

Low-frequency Noise Characterization of Graphene FET THz Detectors

Xinxin Yang, Andrei Vorobiev, Kjell Jeppson et al

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz

Paper in proceeding

Show project

2018

An Integrated 200-GHz Graphene FET Based Receiver

Marlene Bonmann, MICHAEL ANDERSSON, Yaxin Zhang et al

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz. Vol. 2018-September

Paper in proceeding

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2018

Graphene field-effect transistors for high frequency applications

Muhammad Asad, Marlene Bonmann, Xinxin Yang et al

Paper in proceeding

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2018

Test structures for evaluating Al2O3 dielectrics for graphene field effect transistors on flexible substrates

Xinxin Yang, Marlene Bonmann, Andrei Vorobiev et al

IEEE International Conference on Microelectronic Test Structures. Vol. 31, p. 75-78

Paper in proceeding

2018

Characterization of Graphene FET based 200 GHz Mixer and 1 GHz Amplifier Integrated on a Si Substrate

Marlene Bonmann, MICHAEL ANDERSSON, Yaxin Zhang et al

Other conference contribution

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2018

Drain current saturation in graphene field-effect transistors at high fields

Marlene Bonmann, Andrei Vorobiev, Xinxin Yang et al

Conference poster

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2018

Homodyne detection in graphene FET power detectors

Xinxin Yang, Andrei Vorobiev, Jan Stake

Other conference contribution

2017

Delay analysis for evaluation of carrier velocity in graphene field-effect transistors

Marlene Bonmann, Andrei Vorobiev, MICHAEL ANDERSSON et al

Graphene Week 2017, Athens, Greece, 25-29 September, 2017

Paper in proceeding

2017

Dielectric properties of Mn doped Bismuth Barium Titanate based ceramic thin films prepared by PLD technique

Shoaib Alam Mallick, Andrei Vorobiev, Z. Ahmad et al

Ceramics International. Vol. 43 (12), p. 8778-8783

Journal article

2017

A flexible graphene terahertz detector

Xinxin Yang, Andrei Vorobiev, Andrey Generalov et al

Applied Physics Letters. Vol. 111 (2)

Journal article

2017

Effect of oxide traps on channel transport characteristics in graphene field effect transistors

Marlene Bonmann, Andrei Vorobiev, Jan Stake et al

Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures. Vol. 35 (1), p. 01A115-

Journal article

2017

Broadband Flexible Graphene RF Power Detectors

Xinxin Yang, Andrei Vorobiev, Andrey Generalov et al

Graphene Week 2017, Athens, Greece, 25-29 September, 2017

Paper in proceeding

2017

THz Power Detectors Fabricated on Si and Flexible Substrates

Andrei Vorobiev

European Microwave Week 2017, Nuremberg, Germany, 8-13 October, 2017

Other conference contribution

2017

Graphene and MMIC processing

Andrei Vorobiev

Graphene Study 2017, Gothenburg, Sweden, 25-30 June, 2017

Other conference contribution

2017

Graphene based mmWave and THz devices

Andrei Vorobiev

Graphene Study 2017, Gothenburg, Sweden, 25-30 June, 2017

Other conference contribution

2017

Studies of hysteresis in capacitance and current characteristics of flexible graphene field-effect transistors

Marlene Bonmann, Xinxin Yang, Andrei Vorobiev et al

Graphene Week 2017, Athens, Greece, 25-29 September, 2017

Paper in proceeding

2017

A 400-GHz Graphene FET Detector

Andrey Generalov, MICHAEL ANDERSSON, Xinxin Yang et al

IEEE Transactions on Terahertz Science and Technology. Vol. 7 (5), p. 614-616

Journal article

2017

A heterodyne graphene FET detector at 400 GHz

Andrey Generalov, MICHAEL ANDERSSON, Xinxin Yang et al

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz, p. Artno:8067234-

Paper in proceeding

2017

Charge carrier velocity in graphene field-effect transistors

Marlene Bonmann, Andrei Vorobiev, MICHAEL ANDERSSON et al

Applied Physics Letters. Vol. 111 (23), p. 233505-

Journal article

2016

Graphene field - effect transistors on ferroelectric substrates

Andrei Vorobiev, Samina Bidmeshkipour, MICHAEL ANDERSSON et al

Conference poster

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2016

Characterization of Al2O3 gate dielectric for graphene electronics on flexible substrates

Xinxin Yang, Marlene Bonmann, Andrei Vorobiev et al

2016 Global Symposium on Millimeter Waves (GSMM) & ESA Workshop on Millimetre-Wave Technology and Applications, p. 153-156

Paper in proceeding

2016

Feasibility of Ambient RF Energy Harvesting for Self-Sustainable M2M Communications Using Transparent and Flexible Graphene Antennas

MICHAEL ANDERSSON, Ayca Ozcelikkale, Martin Johansson et al

IEEE Access. Vol. 4, p. 5850-5857

Journal article

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2016

Graphene field - effect transistors on LiNbO3 ferroelectric substrates

Andrei Vorobiev, Samina Bidmeshkipour, MICHAEL ANDERSSON et al

Other conference contribution

2015

Composite Ferroelectric FBARs That Are Switchable Between the First and Second Harmonics: Experimental Demonstration

Andrei Vorobiev, Spartak Gevorgian

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. Vol. 62 (3), p. 565-575

Journal article

2015

Effect of ferroelectric substrate on carrier mobility in graphene field-effect transistors

Samina Bidmeshkipour, Andrei Vorobiev, MICHAEL ANDERSSON et al

Applied Physics Letters. Vol. 107 (17), p. Article Number: 173106-

Journal article

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2015

Tunable ferroelectric FBARs: An overview

Andrei Vorobiev, Spartak Gevorgian

13th European Meeting on Ferroelectricity, EMF-2015 proceedings

Paper in proceeding

2014

Graphene in Millimeter Wave Devices

Jan Stake, MICHAEL ANDERSSON, Audrey Zak et al

39th International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2014, Tucson, United States, 14-19 September 2014, p. Art. no. 6956168-

Paper in proceeding

2014

Effect of growth conditions on microstructure of BiFeO3-0.33BaTiO(3) films and performance of bulk acoustic wave resonators

Andrei Vorobiev, Markus Löffler, Eva Olsson et al

Journal of Applied Physics. Vol. 115 (8)

Journal article

2014

Impact of the electrode material and shape on performance of intrinsically tunable ferroelectric FBARs

Andrei Vorobiev, Spartak Gevorgian

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. Vol. 61 (5), p. 840-848

Journal article

2014

Extraction of carrier transport properties in graphene from microwave measurements

MICHAEL ANDERSSON, Andrei Vorobiev, Spartak Gevorgian et al

European Microwave Conference (EuMC), 2014 44th, p. 359 - 362

Paper in proceeding

2014

Intrinsically switchable bulk acoustic wave resonators based on paraelectric films

Andrei Vorobiev, Spartak Gevorgian

2014 44th European Microwave Conference, EuMC 2014 - Held as Part of the 17th European Microwave Week, EuMW 2014, Rome, Italy, 6-9 October 2014, p. 347-350

Paper in proceeding

2014

Intrinsically Switchable and Tuneable FBARs for Microwave Communication and Sensor Applications

Andrei Vorobiev, Spartak Gevorgian

GigaHertz Symposium, p. 43-

Paper in proceeding

2014

Intrinsically switchable thin film bulk acoustic wave resonators

Andrei Vorobiev, Spartak Gevorgian

Applied Physics Letters. Vol. 104 (22), p. Art. no. 222905-

Journal article

Show project

2014

Intrinsically tunable bulk acoustic wave resonators based on sol-gel grown PMN-PT films

Andrei Vorobiev, Matjaz Spreitzer, Asja Veber et al

Journal of Applied Physics. Vol. 116 (6), p. Art. no. 064101-

Journal article

2014

Comparison of carrier scattering mechanisms in chemical vapor deposited graphene on fused silica and strontium titanite substrates

MICHAEL ANDERSSON, Andrei Vorobiev, Spartak Gevorgian et al

Graphene Week 2014

Paper in proceeding

2013

Microwave characterization of Ti/Au-graphene contacts

MICHAEL ANDERSSON, Andrei Vorobiev, Jie Sun et al

Applied Physics Letters. Vol. 103 (17), p. 173111-

Journal article

2013

Loss balance in tunable ferroelectric FBARs

Spartak Gevorgian, Andrei Vorobiev

8th European Microwave Integrated Circuits Conference, EuMIC 2013 - Held as Part of 16th European Microwave Week, EuMW 2013; Nuremberg; Germany; 6 October 2013 through 8 October 2013, p. 372-375

Paper in proceeding

2013

Tunable FBARs based on sol-gel grown PMN-PT films

Andrei Vorobiev, Spartak Gevorgian, Matjaz Spreitzer et al

43rd European Microwave Conference, EuMC 2013 - Held as Part of the 16th European Microwave Week, EuMW 2013, Nuremberg, Germany, 7-10 October 2013, p. 1339-1342

Paper in proceeding

2013

Ferroelectric film bulk acoustic wave resonators for liquid viscosity sensing

Andrei Vorobiev, Spartak Gevorgian

Journal of Applied Physics. Vol. 114 (8)

Journal article

2013

Ferroelectric film bulk acoustic wave resonators for liquid viscosity sensing

Andrei Vorobiev, Spartak Gevorgian

IEEE—UFFC joint symposia, 21—25 July, 2013, Prague

Paper in proceeding

2013

Effect of Growth Conditions on Performance of BiFeO3-0.33BaTiO3 BAW Resonators

Andrei Vorobiev, Spartak Gevorgian, Markus Löffler et al

IEEE—UFFC joint symposia on 21—25 July 2013, Prague

Paper in proceeding

2013

Towards Graphene Electrodes for High Performance Acoustic Resonators

MICHAEL ANDERSSON, Andrei Vorobiev, Jie Sun et al

WOCSDICE, p. 99-100

Paper in proceeding

2013

Loss balance in tunable ferroelectric FBARs

Spartak Gevorgian, Andrei Vorobiev

43rd European Microwave Conference, EuMC 2013 - Held as Part of the 16th European Microwave Week, EuMW 2013, Nuremberg, Germany, 7-10 October 2013, p. 1343-1346

Paper in proceeding

2013

Tunable FBARs Based on Sol-Gel Grown PMN-PT Films

Andrei Vorobiev, Spartak Gevorgian, Spreitzer Matjaz et al

8th European Microwave Integrated Circuits Conference, EuMIC 2013 - Held as Part of 16th European Microwave Week, EuMW 2013; Nuremberg; Germany; 6 October 2013 through 8 October 2013, p. 368-371

Paper in proceeding

2013

Tuneable Film Bulk Acoustic Wave Resonators

Spartak Gevorgian, Andrei Vorobiev, Alexander Tagantsev

Book

2013

Enhanced tunable performance of high Q-factor BaxSr1-xTiO3 film bulk acoustic wave resonators

Andrei Vorobiev, Spartak Gevorgian

International Journal of Microwave and Wireless Technologies. Vol. 5 (3), p. 361-369

Journal article

Show project

2013

Impedance of DC-Bias-Controlled Composite FBARs

Spartak Gevorgian, Andrei Vorobiev

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. Vol. 60 (4), p. 795-804

Journal article

2012

Intrinsically tunable 0.67 BiFeO3-0.33 BaTiO3 thin film bulk acoustic wave resonators

Andrei Vorobiev, Spartak Gevorgian, Norayr Martirosyan et al

Applied Physics Letters. Vol. 101 (23), p. 232903-232903-5-

Journal article

Show project

2012

Microwave characterization of intrinsically tunable FBARs

Andrei Vorobiev, Spartak Gevorgian

IEEE MTT-S International Microwave Symposium Digest

Paper in proceeding

2012

ADS Based 1D Model of Solidly Mounted FBARs Including Longitudinal and Shear Waves

Spartak Gevorgian, Andrei Vorobiev

Integrated Ferroelectrics. Vol. 134 (1), p. 75-80

Paper in proceeding

2012

Growth temperature dependent dielectric properties of BiFeO3 thin films deposited on silica glass substrates

Taimur Ahmed, Andrei Vorobiev, Spartak Gevorgian

Thin Solid Films. Vol. 520 (13), p. 4470-4474

Journal article

2012

Tunable BiFeO3-BaTiO3 thin film bulk acoustic wave resonators for microwave applications

Andrei Vorobiev, Spartak Gevorgian, Norayer Martirosyan et al

CIMTEC 2012, Smart Materials, Structures and Systems, (June 10-14, 2012, Montecatini Terme, Italy)

Paper in proceeding

2012

Tunable FBARs: Intrinsic vs. extrinsic tunability

Spartak Gevorgian, Andrei Vorobiev

IEEE MTT-S International Microwave Symposium Digest

Paper in proceeding

2012

Adhesion layer-bottom electrode interaction during BaxSr1−xTiO3 growth as a limiting factor for device performance

Markus Löffler, Andrei Vorobiev, Lunjie Zeng et al

Journal of Applied Physics. Vol. 111 (12), p. Art. no. 124514-

Journal article

2012

Improved Tunable Performance of high Q-factor BaxSr1-xTiO3 Film Bulk Acoustic Wave Resonators

Andrei Vorobiev, Spartak Gevorgian

15th European Microwave Week - Space for Microwaves Conference Proceedings, p. 1-3

Paper in proceeding

2012

Microwave Response of BiFeO3 Films in Parallel-Plate Capacitors

Andrei Vorobiev, Taimur Ahmed, Spartak Gevorgian

Integrated Ferroelectrics. Vol. 134 (1), p. 111-117

Paper in proceeding

2011

Correlations between microstructure and Q-factor of tunable thin film bulk acoustic wave resonators

Andrei Vorobiev, Spartak Gevorgian, Markus Löffler et al

Journal of Applied Physics. Vol. 110 (5)

Journal article

2011

Model of ferroelectric FBARs including longitudinal and shear waves

Spartak Gevorgian, Andrei Vorobiev

International Symposium on Integrated Functionalities, July 31-August 4, 2011, Cambridge, England

Conference poster

2011

Dielectric model of point charge defects in insulating paraelectric perovskites

V. Buniatian, Norayr Martirosyan, Andrei Vorobiev et al

Journal of Applied Physics. Vol. 110 (9)

Journal article

2011

High Q-factor Ba0.25Sr0.75TiO3 thin film bulk acoustic wave resonators: growth conditions and correlations with microstructure

Andrei Vorobiev, Spartak Gevorgian, Markus Löffler et al

International Symposium on Integrated Functionalities, July 31-August 4, 2011, Cambridge, England

Conference poster

2011

Microwave losses in ferroelectric varactors

Andrei Vorobiev, Spartak Gevorgian

European Meeting on Ferroelectricity, Bordeaux, June 26 – July 2, 2011

Paper in proceeding

2011

Effect of interface roughness on acoustic loss in tunable thin film bulk acoustic wave resonators

Andrei Vorobiev, John Berge, Spartak Gevorgian et al

Journal of Applied Physics. Vol. 110 (2)

Journal article

2010

Silicon substrate integration of BST based tunable TFBARs using all-dielectric SiO2/AlN Bragg reflectors

Andrei Vorobiev, John Berge, Martin Norling et al

2010 10th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, SiRF 2010 - Digest of Papers, p. 41-44

Paper in proceeding

2010

Ferroelectrics in passive scanning antennas

Spartak Gevorgian, Andrei Vorobiev

EuRAD 2010 Workshop: “Passive Electronically Scanned Arrays and Associated RF Technologies”

Paper in proceeding

2010

Design considerations for tunable bulk acoustic wave resonators based on paraelectric phase BaxSr1-xTiO3 thin films

John Berge, Andrei Vorobiev, Spartak Gevorgian

19th International Symposium on the Applications of Ferroelectrics

Conference poster

2010

Evaluation of tunable FBARs with improved performance

Andrei Vorobiev, Spartak Gevorgian

MEMSWAVE 2010, Otranto, Italy, June 28-29-30

Paper in proceeding

2010

Ferroelectric thin film varactors for microwave devices, methods of characterization, circuit models

Andrei Vorobiev

Ferroelectric Films at Microwave Frequencies, edited by P. Bao, T. J. Jackson and P. M. Suherman, Research Signpost, p. 57-94

Book chapter

2010

Switchable/Tunable FBARs: Current status and potential

Spartak Gevorgian, Andrei Vorobiev

MEMSWAVE 2010, June 28-30, Otranto, Italy

Paper in proceeding

2010

A highly integrated heterogeneous micro- and mm-wave platform

Pierre Franck Alleaume, Lars Aspemyr, Spartak Gevorgian et al

IEEE MTT-S International Microwave Symposium Digest, p. 461-464

Other conference contribution

2010

Tunable BaxSr1-xTiO3 FBARs based on SiO2/W Bragg reflectors

Andrei Vorobiev, Spartak Gevorgian

IEEE MTT-S International Microwave Symposium Digest; MTT 2010; Anaheim, CA; 23 May 2010 through 28 May 2010, p. 1444-1447

Other conference contribution

2010

Layout Optimization of Small-Size Ferroelectric Parallel-Plate Varactors

Martin Norling, Dan Kuylenstierna, Andrei Vorobiev et al

IEEE Transactions on Microwave Theory and Techniques. Vol. 58 (6), p. 1475-1484

Journal article

2010

Improved performance of tunable BaxSr1-xTiO3 TFBARs

Andrei Vorobiev, Spartak Gevorgian

Elrctroceramics XII, Trondheim, Norway 13-16 June 2010

Paper in proceeding

2010

Microwave and thz applications of ferroelectrics and multiferroics

Spartak Gevorgian, Andrei Vorobiev

2010 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves, MSMW'2010

Other conference contribution

2010

Growth and dielectric characterisation of large grain BiFeO3 thin films on amorphous SiO2 substrates

Andrei Vorobiev, Norayr Martirosyan, Sten Eriksson et al

IOP Conference Series: Materials Science and Engineering - Fundamentals and Technology of Multifunctional Oxide Thin Films (Symposium G, EMRS 2009 Spring Meeting) 8–12 June 2009, Strasbourg, France. Vol. 8 (1), p. 012001-

Paper in proceeding

2010

Tunable thin film bulk acoustic wave resonators with improved Q-factor

Andrei Vorobiev, Spartak Gevorgian

Applied Physics Letters. Vol. 96 (21), p. Article Number: 212904 -

Journal article

2010

Ferroelectric varactors suitable for capacitive shunt switching

Guru Subramanyam, Andrei Vorobiev, Spartak Gevorgian

Patent

2010

Impact of the electrodes on the tunability of paraelectric BST film based FBARs

Spartak Gevorgian, Andrei Vorobiev

13th European Microwave Week 2010, EuMW2010: Connecting the World - 40th European Microwave Conference, EuMC 2010; Paris; 28 September 2010 through 30 September 2010, p. 1210-1213

Paper in proceeding

2010

The effect of Bragg reflectors on the electromechanical performance of parallel-plate ferroelectric capacitors

John Berge, Martin Norling, Andrei Vorobiev et al

Paper in proceeding

2009

CAD oriented frequency, temperature, and DC bias dependent small-signal, scalable circuit model of parallel-plate paraelectric varactors

Spartak Gevorgian, Anatoli Deleniv, Andrei Vorobiev et al

International Journal of RF and Microwave Computer-Aided Engineering. Vol. 19 (2), p. 243--257-

Journal article

2009

Tuneable resonator

Spartak Gevorgian, Thomas Lewin, Harald Jacobsson et al

Patent

2009

A voltage controlled switching device

Spartak Gevorgian, T Lewin, Andrei Vorobiev et al

Patent application

2009

The potential of multiferroics for GHz and THz applications

Spartak Gevorgian, Andrei Vorobiev

2009 pacific Rim electroceramics conference

Paper in proceeding

2009

Ferroelectrics in Microwave Devices, Circuits and Systems: Physics, Modeling, Fabrication and Measurements

Spartak Gevorgian, Andrei Vorobiev, Anatoli Deleniv

Book

2009

Composition dependent tunable microwave properties of thin BaxSr1-xTiO3 films

Andrei Vorobiev, Spartak Gevorgian

E-MRS 2009 Symposium G

Paper in proceeding

2009

Agile Microwave Dielectrics: Are there Other Alternatives to BaxSr1-xTiO3

Spartak Gevorgian, Andrei Vorobiev

Proc. Workshop Tunable RF-Components and Modules for Wireless Communication: Materials and Packaging, WFMO2 (EuMC/EuWiT), EuMC2009, Rome 2009

Paper in proceeding

2008

Field and temperature dependent parameters of the dc field induced resonances in BaxSr1-xTiO3-based tunable thin film bulk acoustic resonators

John Berge, Martin Norling, Andrei Vorobiev et al

Journal of Applied Physics. Vol. 103 (6), p. 064508-

Journal article

2008

Development of processes for heterogeneous integration of ferroelectric films and devices in microwave systems

Andrei Vorobiev, Spartak Gevorgian

Electroceramics XI, 31 August - 3 September 2008, Manchester, UK

Paper in proceeding

2008

On-Wafer characterization of varactors using resonating microprobes

Anatoli Deleniv, Andrei Vorobiev, Spartak Gevorgian

IEEE trans on microwave theory and techniques. Vol. 56 (5), p. 1105-

Journal article

2008

Room temperature dynamic life time measurements of ferroelectric varactors

Spartak Gevorgian, Andrei Vorobiev, Samira Mousavi Nik et al

ISIF'2008

Paper in proceeding

2008

Tunable Resonator (FBAR)

Spartak Gevorgian, T Lewin, Harald Jacobsson et al

Patent application

2008

Comparative study of microstructure and microwave dielectric response of BaxSr1-xTiO3 films grown by pulsed laser deposition and magnetron sputtering

Andrei Vorobiev, John Berge, Spartak Gevorgian

Electroceramics XI, 31 August - 3 September 2008, Manchester, UK

Paper in proceeding

2008

CAD oriented frequency, temperature, and DC bias dependent small-signal, scalable circuit model of parallel-plate paraelectric varactors

Spartak Gevorgian, Anatoli Deleniv, Andrei Vorobiev et al

International Journal of RF and Microwave Computer-Aided Engineering

Journal article

2007

Ferroelectric varactors suitable for capacitive shunt switching and wireless sensing

Guru Subramanyam, Andrei Vorobiev, Spartak Gevorgian

Patent application

2007

The effect of growth temperature on the nanostructure and dielectric response of BaTiO3 ferroelectric films

John Berge, Andrei Vorobiev, Spartak Gevorgian

Thin Solid Films. Vol. 515 (16), p. 6302-6308

Journal article

2007

Ferroelectric varactors suitable for capacitive shunt switching

Guru Subramanyam, Andrei Vorobiev

Patent

2007

Thin film Ba0.25Sr0.75TiO3 voltage tunable capacitors on fused silica substrates for applications in microwave microelectronics

Andrei Vorobiev, John Berge, Spartak Gevorgian

Thin Solid Films. Vol. 515 (16), p. 6606-6610

Journal article

2007

Performance of Coplanar Waveguides on Surface Passivated Highly Resistive Silicon Covered by Ferroelectric Thin Film

Dan Kuylenstierna, Martin Norling, Andrei Vorobiev et al

IEEE MTT-S International Microwave Symposium Digest, Honolulu, Hawaii, p. 2055 - 2058

Paper in proceeding

2007

A low-noise K-band VCO based on room-temperature ferroelectric varactors

Martin Norling, Andrei Vorobiev, Harald Jacobsson et al

IEEE Transactions on Microwave Theory and Techniques. Vol. 55 (2), p. 361-369

Journal article

2007

Experimental characterization of the 3rd order nonlinearities in thin film parallel-plate ferroelectric varactors

Anatoli Deleniv, Pär Rundqvist, Andrei Vorobiev et al

IEEE MTT-S International Microwave Symposium Digest. Vol. 2, p. 683-686

Paper in proceeding

2007

Comparison of high-resistivity silicon surface passivation methods

Martin Norling, Dan Kuylenstierna, Andrei Vorobiev et al

EuMIC 2007 Proceedings, p. 215-218

Paper in proceeding

2007

Tunable Solidly Mounted Thin Film Bulk Acoustic Resonators Based on BaxSr1-xTiO3 Films

John Berge, Andrei Vorobiev, William Steichen et al

IEEE Microwave and Wireless Components Letters. Vol. 17 (9), p. 655-657

Journal article

2006

Composite Right/Left Handed Transmission Line Phase Shifter Using Ferroelectric Varactors

Dan Kuylenstierna, Andrei Vorobiev, Peter Linner et al

Microwave and Wireless Components Letters. Vol. 16 (4), p. 167-169

Journal article

2006

The effect of growth temperature on the nanostructure and dielectric response of Ba0.75Sr0.25TiO3 ferroelectric films

John Berge, Andrei Vorobiev, Spartak Gevorgian

E-MRS IUMRS ICEM 2006, May 29 to June 2. Symposium J: Synthesis, Processing, and Characterization of Nanoscale Functional Oxide Films. Acropolis Congress Center, Nice, France.

Paper in proceeding

2006

Broadband microprobe characterization of the ferroelectric films and varactors

Andrei Vorobiev, Dan Kuylenstierna, Pär Rundqvist et al

36th European Microwave Conference, EuMC 2006; Manchester; United Kingdom; 10 September 2006 through 12 September 2006, p. 843-846

Paper in proceeding

2006

DC field and temperature dependent acoustic resonances in parallel-plate capacitors based on SrTiO3 and Ba0.25Sr0.75TiO3 films. Experiment and modeling

Spartak Gevorgian, Andrei Vorobiev

J. Appl. Phys.. Vol. 99, p. 124112-1

Journal article

2006

Electromechanical modelling and reduction of the electroacoustic losses in parallel-plate ferroelectric varactors

Spartak Gevorgian, Andrei Vorobiev, John Berge

EuMC, Manchester, UK, 10-15 September, 2006.

Paper in proceeding

2006

40 GHz Lumped Element Tunable Bandpass Filters with Transmission Zeros Based on Thin Ba0.25Sr0.75TiO3 (BST) Film Varactors

Dan Kuylenstierna, Andrei Vorobiev, Spartak Gevorgian

IEEE SiRF06

Paper in proceeding

2006

The Potential of Thin Film Ferroelectric Varactors for Applications in Large Microwave Arrays

Spartak Gevorgian, Andrei Vorobiev, Dan Kuylenstierna

IEEE Radio and Wireless Symposium (RWS 2006), San Diego, 17-19 January 2006.

Paper in proceeding

2006

The effect of interfacial transition layer on performance of thin film ferroelectric capacitors

Andrei Vorobiev, John Berge, Spartak Gevorgian

Electroceramics X, International Conference on Electroceramics, Toledo, Spain, 18-22 June, 2006

Paper in proceeding

2006

Performance Problems: Do they Hinder the Wide Scale Applications of the Ferroelectrically Tuneable Microwave Devices

Spartak Gevorgian, Andrei Vorobiev, John Berge

EuMC2006 Workshop on Nanostructured ferroelectric films for tuneable microwave and related applications

Paper in proceeding

2006

Ba0.25Sr0.75TiO3 thin film varactors on SrRuO3 bottom electrode

Khaled Khamchane, Andrei Vorobiev, Tord Claeson et al

J. Appl. Phys. Vol. 99, p. 034103-

Journal article

2006

X-band left handed phase shifter using thin film Ba0.25Sr0.75TiO3 ferroelectric varactors

Dan Kuylenstierna, Eric Ash, Andrei Vorobiev et al

Conference Proceedings. 36th European Microwave Conference, 10-15 Sep. 2006, Manchester, UK, 2006, p. 847--50-

Paper in proceeding

2006

Thin film Ba0.25Sr0.75TiO3 varactors on Au bottom electrode for microwave applications

Andrei Vorobiev, John Berge, Spartak Gevorgian

EuMC, Manchester, UK, 10-15 September, 2006.

Paper in proceeding

2006

Thin film Ba0.25Sr0.75TiO3 voltage tuneable capacitors on fused silica substrates for applications in microwave microelectronics

Andrei Vorobiev, John Berge, Spartak Gevorgian

E-MRS IUMRS ICEM 2006, May 29 to June 2. Symposium J: Synthesis, Processing, and Characterization of Nanoscale Functional Oxide Films Acropolis Congress Centre, Nice, France.

Paper in proceeding

2006

The effect of SiO2, Pt and Pt/Au templates on microstructure and permittivity of Ba0:25Sr0:75TiO3 films

Pär Rundqvist, Andrei Vorobiev, Spartak Gevorgian

J. Appl. Phys. Vol. 100, p. 114116-

Journal article

2006

Large Signal Circuit Model of Parallel-Plate Ferroelectric Varactors

Pär Rundqvist, Andrei Vorobiev, Erik Kollberg et al

J. Appl. Phys.. Vol. 100, p. 074101-1

Journal article

2006

Microwave performance of varactors based on nanostructured BSTO films

Andrei Vorobiev, John Berge, Spartak Gevorgian

WS7 (EuMC-2006) Nanostructure Ferroelectric Films for Tuneable Microwave and Related Components, G-Mex/MICC Exhibition & International Conference Centre, Manchester UK

Paper in proceeding

2006

Ferroelectric thin-film based two-dimensional electromagnetic bandgap structures

U. Khan, G. Subramanyam, Spartak Gevorgian et al

Integrated Ferroelectrics. Vol. 86 (1), p. 67-76

Journal article

2006

Microwave performance of thin film ferroelectric varactors in the wide temperature range

Andrei Vorobiev, Spartak Gevorgian

Electroceramics X, International Conference on Electroceramics, Toledo, Spain, 18-22 June, 2006.

Paper in proceeding

2005

Microwave Loss Mechanisms in Ba0.25Sr0.75TiO3 Films

Andrei Vorobiev, Pär Rundqvist, Spartak Gevorgian

Materials Science and Engineering B. Vol. 118, p. 214-218

Journal article

2005

Microwave performance of thin film ferroelectric varactors in the wide temperature range

Andrei Vorobiev, Spartak Gevorgian

GigaHertz 2005, Uppsala, Sweden

Paper in proceeding

2005

Analysis of the influence of SrRuO3 buffer layer on ferroelectric varactors for multiplier applications

Pär Rundqvist, Andrei Vorobiev, Spartak Gevorgian et al

Gigahertz Uppsala

Paper in proceeding

2005

Composite Right/Left Handed Transmission LinePhase Shifter using Ferroelectric Varactors

Dan Kuylenstierna, Andrei Vorobiev, Spartak Gevorgian

Proc. of GigaHertz 2005

Other conference contribution

2005

Analysis of multiplier with a novel symmetric ferroelectric varactor

Pär Rundqvist, Andrei Vorobiev, Erik Kollberg et al

Proc. of the 16th International Symposium of Space Terahertz

Journal article

2005

Ultrawide-band tunable true-time delay lines using ferroelectric varactors

Dan Kuylenstierna, Andrei Vorobiev, Peter Linner et al

IEEE Transactions on Microwave Theory and Techniques. Vol. 53 (6, pt.2), p. 2164-70

Journal article

2005

A balanced 23 GHz voltage-controlled oscillator based on ferroelectric varactors

Martin Norling, Andrei Vorobiev, Harald Jacobsson et al

Gigahertz 2005, p. 279-282

Paper in proceeding

2004

Integration of parallel-plate ferroelectric varactors with BCB-on-silicon microstrip circuits

Dan Kuylenstierna, Andrei Vorobiev, Spartak Gevorgian

2004 IEEE MTT-S International Microwave Symposium Digest, 6-11 June 2004. Vol. Vol.3, p. 1907-10

Paper in proceeding

2004

Non-destructive microwave characterization of ferroelectric films on conductive substrates

Pär Rundqvist, Andrei Vorobiev, Spartak Gevorgian et al

Integrated Ferroelectrics. Vol. 60, p. 1-19

Journal article

2004

Ba 0.25Sr 0.75TiO3 -metal microstructure, surface morphology and interfaces.

Pär Rundqvist, Andrei Vorobiev, Spartak Gevorgian

11th International student seminar on Microwave Applications

Paper in proceeding

2004

Microwave loss mechanisms in Ba0.25Sr0.75TiO3$ thin film varactors

Andrei Vorobiev, Pär Rundqvist, Spartak Gevorgian

Journal of Applied Physics. Vol. 96 (8), p. 4642-9

Journal article

2004

Large signal circuit model of parallel-plate ferroelectric

Pär Rundqvist, Andrei Vorobiev, Spartak Gevorgian

34th European Microwave Conference; London; United Kingdom; 12 October 2004 through 14 October 2004. Vol. 3, p. 1505-1508

Paper in proceeding

2004

Ferroelectrically tuneable delay lines

Dan Kuylenstierna, Andrei Vorobiev, Peter Linner et al

Conference Proceedings. 34th European Microwave Conference, 12-14 Oct. 2004. Vol. vol.1, p. 157-60

Paper in proceeding

2004

Silicon substrate integrated ferroelectric microwave components

Spartak Gevorgian, Andrei Vorobiev, Dan Kuylenstierna et al

Integrated Ferroelectrics. Vol. 66, p. 125-38

Journal article

2003

dc and microwave resistivities of SrRuO_3 films deposited on SrTiO_3

Pär Rundqvist, Andrei Vorobiev, Spartak Gevorgian et al

Journal of Applied Physics,. Vol. 93 (2), p. 1291-7

Journal article

2003

Tunable electromagnetic bandgap performance of coplanar waveguides periodically loaded by ferroelectric varactors

Dan Kuylenstierna, G. Subramanyam, Andrei Vorobiev et al

Microwave and Optical Technology Letters. Vol. 39 (2), p. 81-86

Journal article

2003

Correlation between microstructure, DC resistivity and magnetoresistance of SrRuO3 films

Khaled Khamchane, Zdravko Ivanov, Robert Gunnarsson et al

Materials Research Society Symposium - Proceedings,. Vol. 751, p. 67-71

Paper in proceeding

2003

Silicon substrate integrated high Q-factor parallel-plate ferroelectric varactors

Andrei Vorobiev, Pär Rundqvist, Khaled Khamchane

Appl. Phys. Lett.. Vol. 83, p. 3144-

Journal article

2003

Tunable electromagnetic bandgap structures based on ferroelectric films

Dan Kuylenstierna, Andrei Vorobiev, G. Subramanyam et al

2003 IEEE International Antennas and Propagation Symposium and USNC/CNC/URSI North American Radio Science Meeting, Jun 22-27 2003. Vol. 4, p. 879-882

Paper in proceeding

2003

Conduction and microwave loss mechanisms in Ba0.25Sr0.75TiO3 films

Andrei Vorobiev, Pär Rundqvist, Khaled Khamchane et al

Ferroelectric Thin Films XII, (Mater. Res. Soc. Symposium Proceedings). Vol. 784, p. 357-

Paper in proceeding

2003

Tuneable Electromagnetic Bandgap structures based on Ba/sub 0.25/Sr/sub 0.75/TiO/sub 3/ parallel-plate varactors on silicon Coplanar Waveguides

Dan Kuylenstierna, Andrei Vorobiev, G. Subramanyam et al

33rd European Microwave Conference Proceedings, 7-9 Oct. 2003. Vol. Vol.3, p. 1111-14

Paper in proceeding

2003

Microwave power dependent properties of ferroelectric varactors.

Pär Rundqvist, Andrei Vorobiev, Spartak Gevorgian

Gigahertz Linköping

Paper in proceeding

2003

Silicon substrate integrated high Q-factor parallel-plate ferroelectric varactors for microwave/millimeterwave applications

Andrei Vorobiev, Pär Rundqvist, Spartak Gevorgian et al

Appl. Phys. Lett.. Vol. 83 (15), p. 3144-6

Journal article

2003

Silicon substrate integrated high Q-factor parallel-plate ferroelectric varactors for microwave/millimeterwave applications.

Andrei Vorobiev, Pär Rundqvist, Spartak Gevorgian

Gigahertz Linköping

Paper in proceeding

2002

SrTiO3 thin film varactors on Si for microwave applications

Andrei Vorobiev, Pär Rundqvist, Spartak Gevorgian

Mat. Res. Soc.. Vol. 748, p. 477-

Paper in proceeding

2002

SrTiO3 thin film varactors on Si for microwave applications

Andrei Vorobiev, Pär Rundqvist, Khaled Khamchane et al

Fall 2002 MRS Symposium Proceedings, Boston, USA

Journal article

2002

Microwave properties of SrTiO3/SrRuO3/CeO2/YSZ heterostructure on low-resistivity silicon

Andrei Vorobiev, Pär Rundqvist, Spartak Gevorgian

MICROWAVE MATERIALS AND THEIR APPLICATIONS 2002 Conference

Paper in proceeding

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Showing 6 research projects

2020–2023

Graphene Core Project 3 (Graphene Flagship)

Jari Kinaret Condensed Matter and Materials Theory

Saroj Prasad Dash Quantum Device Physics

Floriana Lombardi Quantum Device Physics

Muhammad Asad Terahertz and Millimetre Wave Laboratory

Andreas Isacsson Condensed Matter and Materials Theory

Zhenyuan Xia Materials and manufacture

Omid Habibpour Microwave Electronics

Patrik Johansson Materials Physics

Samuel Brem Condensed Matter and Materials Theory

Vincenzo Palermo Materials and manufacture

Isabel Harrysson Rodrigues Terahertz and Millimetre Wave Laboratory

Beatriz Ferreira Condensed Matter and Materials Theory

Daniel Erkensten Condensed Matter and Materials Theory

Jan Stake Terahertz and Millimetre Wave Laboratory

Jinhua Sun Materials and manufacture

Sankar Sasidharan Materials and manufacture

Herbert Zirath Microwave Electronics

Marlene Bonmann Terahertz and Millimetre Wave Laboratory

Simon Ovesen Condensed Matter and Materials Theory

Andrei Vorobiev Terahertz and Millimetre Wave Laboratory

Ermin Malic Condensed Matter and Materials Theory

Sergey Kubatkin Quantum Device Physics

Aleksandar Matic Materials Physics

European Commission (EC)

46 publications exist

2018–2021

Flexibla terahertz detektorer i grafen

Andrei Vorobiev Terahertz and Millimetre Wave Laboratory

Swedish Research Council (VR)

7 publications exist

2015–2016

RF energy harvesting for M2M communication

Jan Stake Terahertz and Millimetre Wave Laboratory

Andrei Vorobiev Terahertz and Millimetre Wave Laboratory

MICHAEL ANDERSSON Terahertz and Millimetre Wave Laboratory

VINNOVA

1 publication exists

2015–2017

High mobility graphene transistors with ferroelectrically induced bandgap

Andrei Vorobiev Terahertz and Millimetre Wave Laboratory

Swedish Research Council (VR)

2014–2019

Carbon Based High Speed 3D GaN Electronics System

Johan Liu Electronics Material and Systems

Per Hyldgaard Electronics Material and Systems

Andrei Vorobiev Terahertz and Millimetre Wave Laboratory

Jan Stake Terahertz and Millimetre Wave Laboratory

Swedish Foundation for Strategic Research (SSF)

15 publications exist

2013–2015

Integrated graphene/ferroelectric films for microwave/THz devices

Jan Stake Terahertz and Millimetre Wave Laboratory

Andrei Vorobiev Terahertz and Millimetre Wave Laboratory

Spartak Gevorgian Terahertz and Millimetre Wave Laboratory

MICHAEL ANDERSSON Terahertz and Millimetre Wave Laboratory

Swedish Research Council (VR)

There might be more projects where Andrei Vorobiev participates, but you have to be logged in as a Chalmers employee to see them.