Andrei Vorobiev

Senior forskare vid Chalmers, Mikroteknologi och nanovetenskap (MC2), Terahertz- och millimetervågsteknik

Visar 147 publikationer

2018

An Integrated 200-GHz Graphene FET Based Receiver

Marlene Bonmann, MICHAEL ANDERSSON, Yaxin Zhang et al
Paper i proceeding
2018

Low-frequency Noise Characterization of Graphene FET THz Detectors

Xinxin Yang, Andrei Vorobiev, Kjell Jeppson 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

Graphene field-effect transistors with high extrinsic fT and fmax

Marlene Bonmann, Muhammad Asad, Xinxin Yang et al
Electron Device Letters
Artikel i vetenskaplig tidskrift
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

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

Improved performance of tunable BaxSr1-xTiO3 TFBARs

Andrei Vorobiev, Spartak Gevorgian
Elrctroceramics XII, Trondheim, Norway 13-16 June 2010
Paper i 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
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

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
Patentansökan
2009

The potential of multiferroics for GHz and THz applications

Spartak Gevorgian, Andrei Vorobiev
2009 pacific Rim electroceramics conference
Paper i proceeding
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

Tunable Resonator (FBAR)

Spartak Gevorgian, T Lewin, Harald Jacobsson et al
Patentansökan
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
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
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
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

Spara referenser

Om du har installerat Zotero eller Mendeley på din dator kan du direkt ta ut referenser från de publikationer du ser i listan.

Du laddar ner dessa pluginer här:
Zotero
Mendeley

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.