Nanodielectrics with Nonlinear Response for High Power Microwave Generation
Agency / Branch:
DOD / USAF
The proposed barium strontium titanate (BST) nanodielectric devices will combine some of the best features of bulk and thin-film based tunable dielectrics: low microwave losses, high tunability at high fields, the potential for low operating voltages, and less temperature dependent dielectric response. The miniaturization of devices and reduction of insertion losses requires developments of materials with high dielectric constant (>1000) and low dielectric loss (<0.0005). In addition, our materials will permit operation at high-power (>10 MW) with tunable and selectable operational frequency range. To achieve tunability, high dielectric constant low dielectric loss, and high insulation resistance, we propose to develop nanoscale (BaxSr1-x)TiO3 (BST) based bulk nonlinear microwave components. If higher electric breakdown fields can be achieved in bulk materials through nanocrystalline ceramic engineering, then high tunability will become a reality for high power devices.
Small Business Information at Submission:
Research Institution Information:
TRS CERAMICS, INC.
2820 East College Avenue State College, PA 16801
Number of Employees:
PENN STATE UNIV.
278 Materials Research Laborat
University Park, PA 16802
Nonprofit college or university