Abstract
There are obtained the analytical models for calculation of permittivity in the structures «dielectric substrate - multilayer nanocomposite ferroelectric film (MNFEF) » with metallic electrodes (planar arrangement on MNFEF surface and from the both sides of MNFEF), that are used for construction of electrically retuned devices with temperature-stable parameters. Temperature stabilization of effective MNFEF permittivity in the required temperature interval is provided by selection of layers quantity for their thickness and barium concentrations for each nanocomposite ferroelectric layer composed as Ba x Sr 1-x TiO 3 . MNFEF characteristics and parameters of variconds designed on their basis (planar multislot and in the form of sandwich-structure are studied. There are presented experimental characteristics of the reflector type phase-shifter with fine phase tuning, operating in W-band where as a tuning element ferroelectric capacitors with MNFEF are used.
Highlights
Получены аналитические модели расчета эффективной диэлектрической проницаемости в структурах «диэлектрическая подложка – многослойная нанокомпозитная сегнетоэлектрическая пленка (МНСЭП)» с металлическими электродами, используемые для создания электрически перестраиваемых устройств с температурно-стабильными параметрами
Стабилизация эффективной диэлектрической проницаемости МНСЭП в требуемом интервале температур обеспечена выбором количества слоев, их толщин и концентраций бария для каждого нанокомпозитного сегнетоэлектрического слоя титаната бария-стронция (BaxSr1-xTiO3)
There are obtained the analytical models for calculation of permittivity in the structures «dielectric substrate – multilayer nanocomposite ferroelectric film (MNFEF) » with metallic electrodes, that are used for construction of electrically retuned devices with temperature-stable parameters
Summary
Для цитирования: Температурно-стабильные многослойные нанокомпозитные сегнетоэлектрические пленки для устройств СВЧ / В.
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