РОЗРОБКА ВИСОКОДОБРОТНИХ ОДНОТА БАГАТОФАЗНИХ ДІЕЛЕКТРИКІВ ДЛЯ НОВИХ МІКРОХВИЛЬОВИХ ПРИСТРОЇВ

• Дата: 2025
• Автори: BELOUS, A., V’YUNOV, O., KOVALENKO, L., KHITROVSKIY, V., GODZISZEWSKI, K., YASHCHYSHYN, Ye.
• Формат: Стаття
• Мова: English
• Опубліковано: PH “Akademperiodyka” 2025
• Теми: високодобротний НВЧ-діелектрик; кристалічна структура; однофазний матеріал; багатофазний матеріал; діелектричний резонатор; твердотільний генератор
• Онлайн доступ: https://scinn-eng.org.ua/ojs/index.php/ni/article/view/836
• Назва журналу: Science and Innovation

Introduction. The advancement of microwave technologies has necessitated the development of high-performance dielectric materials to enable miniaturization and enhance the functional characteristics of components such as radio frequency (RF) filters, dielectric resonators, and solid-state microwave sources.Problem Statement. The design and fabrication of high-quality dielectric materials suitable for microwaveapplications across the decimeter, centimeter, and millimeter wave bands remains a critical challenge due to their essential role in next-generation radio-frequency and wireless communication systems.Purpose. This study aims to develop advanced microwave dielectric materials based on single- and multiphasesystems and to demonstrate their potential in improving the performance of wireless communication devices.Materials and Methods. The crystallographic structure and dielectric properties of materials with various crystal lattices (e.g., perovskite, spinel) have been investigated through X-ray diffraction (XRD) and broadband dielectric spectroscopy. Prototype resonant elements fabricated from the synthesized microwave ceramics have been integrated and tested in wireless communication modules. Results. High-quality, thermally stable dielectric materials with tailored permittivity values suitable for decimeter- to millimeter-wave applications have been developed. These materials have been successfully used to fabricate dielectric resonators for RF filters and solid-state microwave generators. The incorporation of these resonators has provided lower phase noise and enhanced device performance compared to conventional quartz-based systems. These findings have demonstrated that dielectricresonators offer superior miniaturization and noise suppression, positioning them as critical components for low-noise, high-frequency devices in emerging 5G and 6G networks. Furthermore, the development of multiphase and high-entropy dielectrics, along with innovations in low- and ultra-low-temperature co-sintering techniques, has addressed the increasing demand for materials capable of supporting higher operational frequencies.Conclusions. The high-Q dielectric materials and devices developed in this study meet international performance benchmarks and have the potential to significantly impact national technological priorities in telecommunications, defense, and security sectors.