Abstract
In this work, the Y3TaO7 weberite-type structure was synthesized by solid state reaction at 1773 K for 6 h, and its crystalline phase was characterized using X-ray diffraction (XRD). Morphological analysis was performed using scanning electron microscopy (SEM). Electrical characterization of the electroceramics was investigated with temperature variation employing complex impedance spectroscopy (CIS). The Nyquist diagram was fitted employing one resistor (R) – constant phase element (CPE) associations correlating to grain boundary. Activation energy (Ea) values for the relaxation processes were determined as 1.07, 1.06 and 1.15 eV for imaginary impedance (Z″), imaginary electrical modulus (M”) and conductivity (σ′), respectively, indicating a consistent thermo-activated conduction process. The temperature coefficient of the resonant frequency (τf) was found to be 31.24 ppm.K−1, suggesting for the development of new dielectric materials with τf ∼ 0. The performance of the dielectric resonator antenna (DRA) was assessed through numerical simulation, demonstrating a strong correlation in impedance and operating frequency at 5.01 GHz. This study aims to facilitate the design of Y3TaO7-based materials, offering significant potential for applications in microelectronic devices in the radiofrequency (RF) and microwave (MW) range.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
