| 摘要 |
The present invention provides a highly dielectric elastomer composition which shows a high dielectric constant in a wide temperature range from low to high temperature and has a low dielectric loss tangent, and a dielectric antenna composed of the highly dielectric elastomer composition. A dielectric antenna including a molding of a highly dielectric elastomer composition composed of an elastomer and a highly dielectric ceramic powder mixed with the elastomer and an electrode formed on the molding. The highly dielectric ceramic powder of barium titanate.neodymium ceramic has a temperature coefficient alpha (unit: 1/° C.) of a dielectric constant of the ceramic powder on 25° C. standard ranging from -200x10<SUP>-6 </SUP>to 100x10<SUP>-6 </SUP>over a temperature range from -40° C. to 100° C. The dielectric constant of the highly dielectric elastomer composition is >=7 and a dielectric loss tangent thereof is <=0.01.
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