Ca(Mg_1/2W_1/2)O₃ (CMW) microwave dielectric ceramics were synthesized by the solid state reaction method and were sintered at the temperatures in the range of 1450–1550 °C for 4 h. X-ray diffraction and Rietveld refinement results confirmed that the main phase of the samples belongs to the monoclinic crystal structure (P2₁/c space group). The vibrational modes were determined using the Raman scattering and Fourier transform infrared reflection (FTIR) spectra, and the lattice vibrational characteristics were revealed in detail. The fitting curves of FTIR spectra were obtained by the four-parameter semi-quantum model that was used to calculate the intrinsic properties of samples, and the influence of the infrared mode on the intrinsic properties was elucidated. The structure-property relationships were constructed based on the Raman modes. The optimal dielectric properties of CMW ceramics are of ε_r = 18.37, tanδ = 2.71 × 10⁻⁴ and were obtained for the sintering temperature of 1500 °C.

Ca(Mg _1/2 W _1/2 )O ₃ (CMW)微波介电陶瓷是通过固态反应法合成的，并在1450-1550°C的温度范围内烧结4小时。X射线衍射和Rietveld精修结果证实样品的主相属于单斜晶结构（P2 ₁/c 空间群）。使用拉曼散射和傅里叶变换红外反射 (FTIR) 光谱确定振动模式，并详细揭示了晶格振动特性。采用四参数半量子模型计算样品的本征性质，得到FTIR光谱的拟合曲线，阐明红外模式对本征性质的影响。结构-性能关系是基于拉曼模式构建的。CMW 陶瓷的最佳介电性能为ε _r  = 18.37，tanδ  = 2.71 × 10 ^-4并且是在 1500 °C 的烧结温度下获得的。