Abstract
NaLaMgWO6 microwave dielectric ceramics have been synthesized via the standard solid-state reaction method. The Rietveld refinement of the X-ray diffraction patterns indicates that NaLaMgWO6 crystallizes in a monoclinic crystal structure with a C2/m space group. Raman spectrum of the NaLaMgWO6 ceramic is collected, and the correlations between the Raman active modes and chemical bond vibrations are systematically identified. The optimum microwave dielectric properties are obtained when sintered at 1550 °C, with εr = 17.1, Qf = 26,150 GHz, and τf = − 83.4 ppm/°C. A microstrip patch antenna operating at the sub-6 GHz band is fabricated using the NaLaMgWO6 ceramic as the substrate. The fabricated antenna resonates at 3.82 GHz, which exhibits an excellent S11 value of − 26 dB, a minimum VSWR value of 1.07, and a satisfactory simulated efficiency of 72.2%. The good antenna performance demonstrates the great application potential of NaLaMgWO6 ceramic in the sub-6 GHz band antennas.
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The financial supports from the Fundamental Research Funds for the Provincial Universities of Zhejiang (GK219909299001-408) are greatly appreciated.
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FLL: sample preparation, investigation, writing the original draft, BL: supervision, review and editing, funding acquisition, KXS: interpretation, resources.
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Lin, F.L., Liu, B. & Song, K.X. NaLaMgWO6 microwave dielectric ceramics and their sub-6 GHz band microstrip patch antenna applications. J Mater Sci: Mater Electron 33, 21737–21745 (2022). https://doi.org/10.1007/s10854-022-08961-9
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DOI: https://doi.org/10.1007/s10854-022-08961-9