Title :
Characterization of MgO-TiO2-based ceramic materials at W-band
Author :
Cook, Alan M. ; Calame, Jeffrey P. ; Mahadik, Nadeemullah A.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
We report characterization of low-loss MgO-TiO2 system ceramic materials in the 75-110 GHz (W-band) and 0.5-18 GHz frequency ranges. Measurements of the complex permittivity are used to study the dielectric constant, loss tangent, and DC conductivity (low-frequency) behavior of the materials for application in millimeter-wave vacuum electron devices. We investigate the effects of varying ceramic synthesis process parameters on the rf material properties.
Keywords :
ceramics; magnesium compounds; microwave materials; millimetre wave materials; millimetre wave tubes; titanium compounds; travelling wave tubes; vacuum tubes; DC conductivity; MgO-TiO2; W-band; ceramic synthesis process parameters; complex permittivity measurements; dielectric constant; frequency 0.5 GHz to 18 GHz; frequency 75 GHz to 110 GHz; loss tangent; low-frequency behavior; low-loss system ceramic materials; millimeter-wave vacuum electron devices; rf material property; Ceramics; Loss measurement; Permittivity; Permittivity measurement; Temperature measurement; TWT; ceramic; dielectric; millimeter wave;
Conference_Titel :
Vacuum Electronics Conference, IEEE International
Conference_Location :
Monterey, CA
DOI :
10.1109/IVEC.2014.6857538
