Abstract
A low-firing microwave dielectric ceramic Na2YMg2V3O12 with garnet structure was prepared via the conventional solid-state reaction method. X-ray diffraction data shows that Na2YMg2V3O12 ceramic crystallized into a cubic garnet structure with a space group Ia-3d. Dense Na2YMg2V3O12 ceramic with a relative density of 95.4% could be obtained when sintered at 850°C and exhibited the optimum microwave properties with a relative permittivity of 12.3, a quality factor of 23,180GHz (at 10.2GHz), and a nearly zero τf value of −4.1ppm/°C. Na2YMg2V3O12 was found to be chemically compatible with silver electrode when sintered at 850°C. These merits make Na2YMg2V3O12 a good microwave dielectric ceramic with potential applications in LTCC technology.
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