More Like this

1. On the Permittivity of XT-CF20

   https://doi.org/10.1109/EMCSIPI50001.2023.10241427  

   Harmon, Aaron; Zhang, Wei; Khilkevich, Victor (July 2023, 2023 IEEE Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMC+SIPI))
2. High Permittivity Anisotropic 3D Printed Material

   https://doi.org/10.1109/EMCSI39492.2022.9889552  

   Harmon, Aaron; Khilkevich, Victor; Donnell, Kristen M. (August 2022, 2022 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI))
3. Centrifugal-electrostatic confinement fusion

   https://doi.org/10.1063/5.0161536  

   Ordonez, C A; Weathers, D L (September 2023, Physics of Plasmas)

   A model for plasma confinement is developed and applied for describing an electrically confined thermonuclear plasma. The plasma confinement model includes both an analytical approach that excludes space charge effects and a classical trajectory Monte Carlo simulation that accounts for space charge. The plasma consists of reactant ions that form a non-neutral plasma without electrons. The plasma drifts around a negatively charged electrode. Conditions are predicted for confining a deuterium–tritium plasma using a 460 kV applied electric potential difference. The ion plasma would have a 20 keV temperature, a 1020 m−3 peak density, and a 110 keV average kinetic energy per ion (including drift and thermal portions at a certain point in the plasma). The fusion energy production rate is predicted to be 10 times larger than the energy loss rate, including contributions associated with both plasma loss to electrodes and secondary electron emission. However, an approach for enhancing the fusion power density may have to be employed to realize a practical use for centrifugal-electrostatic confinement fusion. 

   more » « less
4. Ultrahigh anharmonicity low-permittivity tunable nanocrystalline thin-film BaTi2O5

   https://doi.org/10.1016/j.actamat.2021.116712  

   Falmbigl, Matthias; Golovina, Iryna S.; Hawley, Christopher J.; Plokhikh, Aleksandr V.; Shafir, Or; Grinberg, Ilya; Spanier, Jonathan E. (April 2021, Acta Materialia)
5. 4-40 GHz Permittivity Measurements of Indoor Building Materials

   Abel, Jonathan R.; Wallace, Jon W. (July 2019, 2019 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting)

   The transmission properties of common building materials, such as glass and red brick, are measured at normal incidence over a range of 4-40 GHz in a modular anechoic chamber using a vector network analyzer. Complex permittivity values are estimated using only transmission S-parameters of the material under test and an air reference measurement. Results suggest that the method provides reasonable estimates of complex permittivity at high microwave and lower mm-wave frequencies. 

   more » « less