Andrei Vorobiev

2021

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

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

2020

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

2020

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

2020

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

Distinction of the thermoelectric effect in graphene FET THz detectors

2020

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

2020

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

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

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

2020

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

2019

Graphene Field-Effect Transistors for Millimeter Wave Amplifiers

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

2019

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

2019

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

2019

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

2019

Wide Bandwidth Terahertz Mixers Based On Graphene FETs

2019

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

2019

Graphene field-effect transistors with high extrinsic fT and fmax

2018

Low-frequency Noise Characterization of Graphene FET THz Detectors

2018

An Integrated 200-GHz Graphene FET Based Receiver

2018

Graphene field-effect transistors for high frequency applications

2018

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

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

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

2018

Homodyne detection in graphene FET power detectors

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

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

2017

A flexible graphene terahertz detector

2017

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

Broadband Flexible Graphene RF Power Detectors

THz Power Detectors Fabricated on Si and Flexible Substrates

Graphene and MMIC processing

Graphene based mmWave and THz devices

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

2017

A 400-GHz Graphene FET Detector

2017

A heterodyne graphene FET detector at 400 GHz

2017

Charge carrier velocity in graphene field-effect transistors

2016

Graphene field - effect transistors on ferroelectric substrates

2016

Characterization of Al2O3 gate dielectric for graphene electronics on flexible substrates

2016

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

2016

Graphene field - effect transistors on LiNbO3 ferroelectric substrates

2015

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

2015

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

Tunable ferroelectric FBARs: An overview

Graphene in Millimeter Wave Devices

2014

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

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

Extraction of carrier transport properties in graphene from microwave measurements

Intrinsically switchable bulk acoustic wave resonators based on paraelectric films

Intrinsically Switchable and Tuneable FBARs for Microwave Communication and Sensor Applications

2014

Intrinsically switchable thin film bulk acoustic wave resonators

2014

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

2014

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

2013

Microwave characterization of Ti/Au-graphene contacts

Loss balance in tunable ferroelectric FBARs

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

2013

Ferroelectric film bulk acoustic wave resonators for liquid viscosity sensing

Ferroelectric film bulk acoustic wave resonators for liquid viscosity sensing

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

Towards Graphene Electrodes for High Performance Acoustic Resonators

Loss balance in tunable ferroelectric FBARs

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

Tuneable Film Bulk Acoustic Wave Resonators

Impedance of DC-Bias-Controlled Composite FBARs

2013

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

2012

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

Microwave characterization of intrinsically tunable FBARs

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

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

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

Tunable FBARs: Intrinsic vs. extrinsic tunability

2012

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

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

Microwave Response of BiFeO3 Films in Parallel-Plate Capacitors

2011

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

Microwave response of BiFeO3 films in parallel-plate capacitors

Model of ferroelectric FBARs including longitudinal and shear waves

2011

Dielectric model of point charge defects in insulating paraelectric perovskites

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

Microwave losses in ferroelectric varactors

2011

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

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

Ferroelectrics in passive scanning antennas

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

Evaluation of tunable FBARs with improved performance

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

Switchable/Tunable FBARs: Current status and potential

A highly integrated heterogeneous micro- and mm-wave platform

Improved performance of tunable BaxSr1-xTiO3 TFBARs

Layout Optimization of Small-Size Ferroelectric Parallel-Plate Varactors

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

Microwave and thz applications of ferroelectrics and multiferroics

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

2010

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

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

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

Ferroelectric varactors suitable for capacitive shunt switching

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

Tuneable resonator

A voltage controlled switching device

The potential of multiferroics for GHz and THz applications

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

Composition dependent tunable microwave properties of thin BaxSr1-xTiO3 films

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

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

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

On-Wafer characterization of varactors using resonating microprobes

Room temperature dynamic life time measurements of ferroelectric varactors

Tunable Resonator (FBAR)

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

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

Ferroelectric varactors suitable for capacitive shunt switching and wireless sensing

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

Ferroelectric varactors suitable for capacitive shunt switching

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

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

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

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

Comparison of high-resistivity silicon surface passivation methods

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

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

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

Broadband microprobe characterization of the ferroelectric films and varactors

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

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

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

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

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

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

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

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

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

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

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

Microwave performance of varactors based on nanostructured BSTO films

Large Signal Circuit Model of Parallel-Plate Ferroelectric Varactors

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

Ferroelectric thin-film based two-dimensional electromagnetic bandgap structures

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

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

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

Composite Right/Left Handed Transmission LinePhase Shifter using Ferroelectric Varactors

Analysis of multiplier with a novel symmetric ferroelectric varactor

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

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

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

Non-destructive microwave characterization of ferroelectric films on conductive substrates

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

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

Large signal circuit model of parallel-plate ferroelectric

Ferroelectrically tuneable delay lines

Silicon substrate integrated ferroelectric microwave components

dc and microwave resistivities of SrRuO_3 films deposited on SrTiO_3

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

Correlation between microstructure, DC resistivity and magnetoresistance of SrRuO3 films

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

Tunable electromagnetic bandgap structures based on ferroelectric films

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

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

Microwave power dependent properties of ferroelectric varactors.

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

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

SrTiO3 thin film varactors on Si for microwave applications

SrTiO3 thin film varactors on Si for microwave applications

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