Design and Development of a Tunable Ferroelectric Microwave Surface Mounted Device

Borderon, Caroline; Ginestar, Stéphane; Gundel, Hartmut; Haskou, Abdullah; Nadaud, Kevin; Renoud, Raphaël; Sharaiha, Ala

doi:10.1109/tuffc.2020.2986227

Cited by 17 publications

(3 citation statements)

References 17 publications

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“…На основе сегнетоэлектрических материалов созданы такие СВЧ-устройства как перестраиваемые конденсаторы, линии задержки, фазовращатели и др. [1][2][3].…”

Section: аннотацияunclassified

Структурные И Электрические Свойства Стеклокерамических Сегнетоэлектрических Композитных Материалов

Tumarkin¹,

Gagarin²,

Свиридов³

et al. 2022

Preprint

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Материалы, обладающие одновременно высокой диэлектрической проницаемостью и высокой электрической прочностью, актуальны для использования в современной ВЧ электротехнике в составе конденсаторов высокой энергетической плотности, систем преобразования энергии, мощных передающих антенн. Наиболее перспективными материалами для применения в вышеупомянутых устройствах являются сегнетоэлектрики, обладающие высокой диэлектрической проницаемостью и электрической нелинейностью. Для увеличения электрической прочности сегнетоэлектрических материалов сегодня разрабатываются композитные структуры на основе смешения сегнетоэлектриков с линейными диэлектриками – материалами, обладающими малой диэлектрической проницаемостью, но высокой электрической прочностью. Преимуществом такого подхода является возможность создания новых многокомпонентных материалов с недостижимыми ранее свойствами и возможность регулировать компонентный состав, размеры включений и электрические свойства композитов в широких пределах. На основе пористого калийжелезосиликатного стекла (KFeSi), полученного методом ионного обмена, синтезированы стеклокерамические материалы, содержащие титанат бария с целью использования для СВЧ применений. Показано, что отжиг стеклокерамических конструкций в кислородной среде положительно влияет на их структурные и электрические характеристики. Стеклокерамические конструкции демонстрируют значительное увеличение диэлектрической проницаемости и снижение потерь после высокотемпературной обработки в кислороде.

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Section: аннотацияunclassified

Структурные И Электрические Свойства Стеклокерамических Сегнетоэлектрических Композитных Материалов

Tumarkin¹,

Gagarin²,

Свиридов³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Furthermore, many ferroelectric materials possess highly tunable dielectric permittivity up to GHz range, suitable to be used for decoupling and tunable microwave and memory capacitors, as reviewed in the literature and demonstrated with recent progress. [ 203 , 204 , 205 , 206 , 207 , 208 ] Thus ferroelectric materials are promising for playing a significant role in wireless signal transmission for distributed sensor nodes.…”

Section: Synergized Multiple Ferroelectric Functions For Distributed Intelligencementioning

confidence: 99%

Enabling Distributed Intelligence with Ferroelectric Multifunctionalities

et al. 2021

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Distributed intelligence involving a large number of smart sensors and edge computing are highly demanded under the backdrop of increasing cyber-physical interactive applications including internet of things. Here, the progresses on ferroelectric materials and their enabled devices promising energy autonomous sensors and smart systems are reviewed, starting with an analysis on the basic characteristics of ferroelectrics, including high dielectric permittivity, switchable spontaneous polarization, piezoelectric, pyroelectric, and bulk photovoltaic effects. As sensors, ferroelectrics can directly convert the stimuli to signals without requiring external power supply in principle. As energy transducers, ferroelectrics can harvest multiple forms of energy with high reliability and durability. As capacitors, ferroelectrics can directly store electrical charges with high power and ability of pulse-mode signal generation. Nonvolatile memories derived from ferroelectrics are able to realize digital processors and systems with ultralow power consumption, sustainable operation with intermittent power supply, and neuromorphic computing. An emphasis is made on the utilization of the multiple extraordinary functionalities of ferroelectrics to enable material-critical device innovations. The ferroelectric characteristics and synergistic functionality combinations are invaluable for realizing distributed sensors and smart systems with energy autonomy.

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“…The first is based on the metal-insulator-metal (MIM) topology [18,19] in which the ferroelectric layer is integrated between two parallel conductive plates (electrodes), allowing a large field concentration into the active layer, and hence important tuning of the capacitance value. The main drawback of this architecture is the use of overlapped layers, which makes the ferroelectric layer performances dependent on the lower electrode quality, and brings complexity to the fabrication process [20] and which are prone to resonant electrostrictive effects [21]. The second topology is planar, less complex, and consists of an inter-digitated capacitor (IDC) metallic structure [22][23][24] build directly on top of the ferroelectric layer.…”

Section: Introductionmentioning

confidence: 99%

Characterization and Performance Analysis of BST-Based Ferroelectric Varactors in the Millimeter-Wave Domain

et al. 2021

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We present the realization and analysis of the microwave performances of interdigited varactors integrating thin ferroelectric layers of barium and strontium titanate (BaxSr1−xTiO3). Devices based on ferroelectric films of different compositions (x = 0.8 and x = 0.5) have been characterized in the millimeter-wave domain, from 200 MHz to 110 GHz. By applying different bias voltages, the tunability of the capacitance can reach up to 40% for the Ba0.8Sr0.2TiO3 composition, under relatively low applied electric fields of about 167 kV/cm. These promising characteristics allow the integration of the varactor devices in tunable antennas for a large frequency domain, from the microwaves to the millimeter waves range.

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Design and Development of a Tunable Ferroelectric Microwave Surface Mounted Device

Cited by 17 publications

References 17 publications

Структурные И Электрические Свойства Стеклокерамических Сегнетоэлектрических Композитных Материалов

Структурные И Электрические Свойства Стеклокерамических Сегнетоэлектрических Композитных Материалов

Enabling Distributed Intelligence with Ferroelectric Multifunctionalities

Characterization and Performance Analysis of BST-Based Ferroelectric Varactors in the Millimeter-Wave Domain

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