| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Advances in Dielectric Materials and Electronic Devices
|
| Presentation Title |
TTB Strontium Tantalum Ceramics for Integration into Miniature Dielectric Resonator Antennas |
| Author(s) |
Matthew J. Julian, Mouad Barzani, Mohamad Haydoura, Ratiba Benzerga, Laurent Le Gendre, Ala Sharaiha, Francois Chevire, Claire Le Paven |
| On-Site Speaker (Planned) |
Matthew J. Julian |
| Abstract Scope |
This study will investigate the viability of utilizing tetragonal tungsten bronze (TTB) phase β’-SrTa2O6 ceramics for integration into miniaturized dielectric resonator antennas applicable for use in 5G devices. In low frequencies, dielectric measurements are conducted via a metal-insulator-metal structure, showing stable permittivity and losses (ε = 100, tanδ = 1x10-4 at 10 kHz). High frequency dielectric characterization is performed around 3.5 GHz using a resonant cavity, showing a permittivity of 69, dielectric losses tanδ of 4x10-3, and a temperature coefficient of 195 ppm/℃. Optimization of sintering conditions to obtain high relative density ceramics, while monitoring the microstructure for abnormal grain growth or texturing and maintaining phase purity, further reduce the dielectric losses. These results, demonstrating that TTB β’-SrTa2O6 ceramics provide the dielectric properties suitable for miniaturized DRA antennas, will be supplemented by the performances of the DRA’s after their realization and characterization in a near-field measurement base. |