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The preparation and microwave dielectric properties Ca[(Li⅓Nb⅔)0.8Ti0.2]O3-δ ceramic filled polymer composites for microwave substrate applications is discussed in this paper. The prediction of the dielectric properties of polymer-ceramic composites using different theoretical models is also discussed. A Coplanar Waveguide Monopole Antenna is designed and fabricated using epoxy-CLNT polymer-ceramic...
The present study investigates the effect of various ceramic fillers on the dielectric properties of polyethylene based composites. The fillers used were Sr9Ce2Ti12O36 (SCT), Ca[(Li1/3Nb2/3)0.8Ti0.2]O3-?? (CLNT) and Sm2Si2O7 (SS) with relative permittivities 173, 38 and 12 respectively. The composites were synthesized by melt mixing and hot pressing methods. The effect of different volume fractions...
Summary form only given. The recent rapid progress in microwave communication accelerates the search of new materials to meet the present challenging performance requirements. In order to maintain high signal conveying efficiency, the dielectric substrate should have low relative permittivity and low dielectric loss. Several low loss low permittivity ceramics such as silicates and aluminates have...
The Ca[(Li1/3Nb2/3)1-xTix]O3-delta (x=0.2 and 0.25) (CLNT) ceramics with Lithium Magnesium Zinc Borosilicate (LMZBS) glasses were prepared by conventional solid state ceramic route. The crystal structure and microstructure of the glass added and sintered CLNT ceramics were studied using X-ray diffractometer and Scanning electron microscope. The addition of LMZBS glasses improved the densification...
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