Andrei Vorobiev
Senior forskare vid
Chalmers, Mikroteknologi och nanovetenskap (MC2), Terahertz- och millimetervågsteknik
Visar 148 publikationer
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
Artikel i vetenskaplig tidskrift
2018
Low-frequency Noise Characterization of Graphene FET THz Detectors
Xinxin Yang, Andrei Vorobiev, Kjell Jeppson et al
Paper i proceeding
2018
An Integrated 200-GHz Graphene FET Based Receiver
Marlene Bonmann, MICHAEL ANDERSSON, Yaxin Zhang et al
Paper i proceeding
2018
Graphene field-effect transistors for high frequency applications
Muhammad Asad, Marlene Bonmann, Xinxin Yang et al
Paper i proceeding
2018
Test structures for evaluating Al2O3 dielectrics for graphene field effect transistors on flexible substrates
Xinxin Yang, Marlene Bonmann, Andrei Vorobiev et al
Proceedings of the 2018 IEEE International Conference on Microelectronic Test Structures. Vol. 31, p. 75-78
Paper i 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
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2018
Drain current saturation in graphene field-effect transistors at high fields
Marlene Bonmann, Andrei Vorobiev, Xinxin Yang et al
Poster (konferens)
2018
Homodyne detection in graphene FET power detectors
Xinxin Yang, Andrei Vorobiev, Jan Stake
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
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 i 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
Artikel i vetenskaplig tidskrift
2017
A flexible graphene terahertz detector
Xinxin Yang, Andrei Vorobiev, Andrey Generalov et al
Applied Physics Letters. Vol. 111 (2)
Artikel i vetenskaplig tidskrift
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-
Artikel i vetenskaplig tidskrift
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 i proceeding
2017
THz Power Detectors Fabricated on Si and Flexible Substrates
Andrei Vorobiev
European Microwave Week 2017, Nuremberg, Germany, 8-13 October, 2017
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2017
Graphene and MMIC processing
Andrei Vorobiev
Graphene Study 2017, Gothenburg, Sweden, 25-30 June, 2017
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2017
Graphene based mmWave and THz devices
Andrei Vorobiev
Graphene Study 2017, Gothenburg, Sweden, 25-30 June, 2017
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
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 i 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
Artikel i vetenskaplig tidskrift
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 i 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-
Artikel i vetenskaplig tidskrift
2016
Graphene field - effect transistors on ferroelectric substrates
Andrei Vorobiev, Samina Bidmeshkipour, MICHAEL ANDERSSON et al
Poster (konferens)
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 i 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
Artikel i vetenskaplig tidskrift
2016
Graphene field - effect transistors on LiNbO3 ferroelectric substrates
Andrei Vorobiev, Samina Bidmeshkipour, MICHAEL ANDERSSON et al
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
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
Artikel i vetenskaplig tidskrift
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-
Artikel i vetenskaplig tidskrift
2015
Tunable ferroelectric FBARs: An overview
Andrei Vorobiev, Spartak Gevorgian
13th European Meeting on Ferroelectricity, EMF-2015 proceedings
Paper i 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 i 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)
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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 i 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 i proceeding
2014
Intrinsically Switchable and Tuneable FBARs for Microwave Communication and Sensor Applications
Andrei Vorobiev, Spartak Gevorgian
GigaHertz Symposium, p. 43-
Paper i proceeding
2014
Intrinsically switchable thin film bulk acoustic wave resonators
Andrei Vorobiev, Spartak Gevorgian
Applied Physics Letters. Vol. 104 (22), p. Art. no. 222905-
Artikel i vetenskaplig tidskrift
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-
Artikel i vetenskaplig tidskrift
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 i 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-
Artikel i vetenskaplig tidskrift
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 i 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 i proceeding
2013
Ferroelectric film bulk acoustic wave resonators for liquid viscosity sensing
Andrei Vorobiev, Spartak Gevorgian
Journal of Applied Physics. Vol. 114 (8)
Artikel i vetenskaplig tidskrift
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 i 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 i proceeding
2013
Towards Graphene Electrodes for High Performance Acoustic Resonators
MICHAEL ANDERSSON, Andrei Vorobiev, Jie Sun et al
WOCSDICE, p. 99-100
Paper i 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 i 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 i proceeding
2013
Tuneable Film Bulk Acoustic Wave Resonators
Spartak Gevorgian, Andrei Vorobiev, Alexander Tagantsev
Bok
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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-
Artikel i vetenskaplig tidskrift
2012
Microwave characterization of intrinsically tunable FBARs
Andrei Vorobiev, Spartak Gevorgian
IEEE MTT-S International Microwave Symposium Digest
Paper i 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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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 i proceeding
2012
Tunable FBARs: Intrinsic vs. extrinsic tunability
Spartak Gevorgian, Andrei Vorobiev
IEEE MTT-S International Microwave Symposium Digest
Paper i 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-
Artikel i vetenskaplig tidskrift
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 i 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
Artikel i vetenskaplig tidskrift
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)
Artikel i vetenskaplig tidskrift
2011
Microwave response of BiFeO3 films in parallel-plate capacitors
Andrei Vorobiev, Taimur Ahmed, Spartak Gevorgian
International Symposium on Integrated Functionalities, July 31-August 4, 2011, Cambridge, England
Paper i proceeding
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
Poster (konferens)
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)
Artikel i vetenskaplig tidskrift
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
Poster (konferens)
2011
Microwave losses in ferroelectric varactors
Andrei Vorobiev, Spartak Gevorgian
European Meeting on Ferroelectricity, Bordeaux, June 26 – July 2, 2011
Paper i 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)
Artikel i vetenskaplig tidskrift
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 i proceeding
2010
Ferroelectrics in passive scanning antennas
Spartak Gevorgian, Andrei Vorobiev
EuRAD 2010 Workshop: “Passive Electronically Scanned Arrays and Associated RF Technologies”
Paper i 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
Poster (konferens)
2010
Evaluation of tunable FBARs with improved performance
Andrei Vorobiev, Spartak Gevorgian
MEMSWAVE 2010, Otranto, Italy, June 28-29-30
Paper i 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
Kapitel i bok
2010
Switchable/Tunable FBARs: Current status and potential
Spartak Gevorgian, Andrei Vorobiev
MEMSWAVE 2010, June 28-30, Otranto, Italy
Paper i 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
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
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
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2010
Improved performance of tunable BaxSr1-xTiO3 TFBARs
Andrei Vorobiev, Spartak Gevorgian
Elrctroceramics XII, Trondheim, Norway 13-16 June 2010
Paper i proceeding
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
Artikel i vetenskaplig tidskrift
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
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
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 i 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 -
Artikel i vetenskaplig tidskrift
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 i proceeding
2010
The effect of Bragg reflectors on the electromechanical performance of parallel-plate ferroelectric capacitors
John Berge, Martin Norling, Andrei Vorobiev 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. 012011-
Paper i 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-
Artikel i vetenskaplig tidskrift
2009
A voltage controlled switching device
Spartak Gevorgian, T Lewin, Andrei Vorobiev et al
Patentansökan
2009
The potential of multiferroics for GHz and THz applications
Spartak Gevorgian, Andrei Vorobiev
2009 pacific Rim electroceramics conference
Paper i proceeding
2009
Ferroelectrics in Microwave Devices, Circuits and Systems: Physics, Modeling, Fabrication and Measurements
Spartak Gevorgian, Andrei Vorobiev, Anatoli Deleniv
Bok
2009
Composition dependent tunable microwave properties of thin BaxSr1-xTiO3 films
Andrei Vorobiev, Spartak Gevorgian
E-MRS 2009 Symposium G
Paper i 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 i 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-
Artikel i vetenskaplig tidskrift
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 i 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-
Artikel i vetenskaplig tidskrift
2008
Room temperature dynamic life time measurements of ferroelectric varactors
Spartak Gevorgian, Andrei Vorobiev, Samira Mousavi Nik et al
ISIF'2008
Paper i proceeding
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 i 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
Artikel i vetenskaplig tidskrift
2007
Ferroelectric varactors suitable for capacitive shunt switching and wireless sensing
Guru Subramanyam, Andrei Vorobiev, Spartak Gevorgian
Patentansökan
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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 i 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
Artikel i vetenskaplig tidskrift
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 i 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 i 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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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 i 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 i 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
Artikel i vetenskaplig tidskrift
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 i 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 i 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 i 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 i 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 i 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-
Artikel i vetenskaplig tidskrift
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 i 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 i 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 i 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-
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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 i 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
Artikel i vetenskaplig tidskrift
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 i 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
Artikel i vetenskaplig tidskrift
2005
Microwave performance of thin film ferroelectric varactors in the wide temperature range
Andrei Vorobiev, Spartak Gevorgian
GigaHertz 2005, Uppsala, Sweden
Paper i 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 i proceeding
2005
Composite Right/Left Handed Transmission LinePhase Shifter using Ferroelectric Varactors
Dan Kuylenstierna, Andrei Vorobiev, Spartak Gevorgian
Proc. of GigaHertz 2005
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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 i 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 i 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
Artikel i vetenskaplig tidskrift
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 i 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
Artikel i vetenskaplig tidskrift
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 i 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 i proceeding
2004
Silicon substrate integrated ferroelectric microwave components
Spartak Gevorgian, Andrei Vorobiev, Dan Kuylenstierna et al
Integrated Ferroelectrics. Vol. 66, p. 125-38
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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 i 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-
Artikel i vetenskaplig tidskrift
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 i 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 i 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 i proceeding
2003
Microwave power dependent properties of ferroelectric varactors.
Pär Rundqvist, Andrei Vorobiev, Spartak Gevorgian
Gigahertz Linköping
Paper i 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
Artikel i vetenskaplig tidskrift
2003
Silicon substrate integrated high Q-factor parallel-plate ferroelectric varactors for microwave/millimeterwave applications.
Andrei Vorobiev, Pär Rundqvist, Spartak Gevorgian
Gigahertz Linköping
Paper i 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 i 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
Artikel i vetenskaplig tidskrift
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 i proceeding
Visar 5 forskningsprojekt
2018–2021
Flexibla terahertz detektorer i grafen
Andrei Vorobiev
Terahertz- och millimetervågsteknik
Vetenskapsrådet (VR)
2015–2016
RF energy harvesting for M2M communication
Jan Stake
Terahertz- och millimetervågsteknik
Andrei Vorobiev
Terahertz- och millimetervågsteknik
VINNOVA
2015–2017
Grafen transistorer med hög laddningsbärar rörlighet och ett ferroelektriskt inducerat bandgap
Andrei Vorobiev
Terahertz- och millimetervågsteknik
Vetenskapsrådet (VR)
2014–2019
Kolbaserat höghastighet 3D GaN elektroniksystem
Johan Liu
Elektronikmaterial och system
Per Hyldgaard
Elektronikmaterial och system
Jan Stake
Terahertz- och millimetervågsteknik
Andrei Vorobiev
Terahertz- och millimetervågsteknik
Stiftelsen för Strategisk forskning (SSF)
2013–2015
Nya mikrovågskomponenter baserade på integrerade grafen/ferroelektriska material
Jan Stake
Terahertz- och millimetervågsteknik
Andrei Vorobiev
Terahertz- och millimetervågsteknik
Spartak Gevorgian
Terahertz- och millimetervågsteknik
MICHAEL ANDERSSON
Terahertz- och millimetervågsteknik
Vetenskapsrådet (VR)
Det kan finnas fler projekt där Andrei Vorobiev medverkar, men du måste vara inloggad som anställd på Chalmers för att kunna se dem.