Vanadium content has a prominent effect on the microwave dielectric properties of Sr₂V_xO₇ (1.80 ≤ x ≤ 2.05) ceramics, which is related to extrinsic factors and intrinsic factors, such as secondary phase, bulk density, crystal structure, and V–O bond length. Rietveld refinement, energy dispersive spectroscopy, and Raman spectra analysis revealed that an appropriate vanadium deficiency causes the appearance of secondary phase Sr₃V₂O₈, which results in the variation of unit cell volume and the significant improvement of Q × f value and the temperature coefficient of resonant frequency. Specifically, the Sr₂V_1.90O₇ ceramic sintered at 950°C possesses optimum microwave dielectric performances: the dielectric constant of 11.1, the Q × f value of 36,500 GHz, and the temperature coefficient of resonant frequency of − 35.6 ppm/°C.

钒含量对SR的微波电介质特性的显着的效果₂ V _X ø ₇（1.80≤  X  ≤2.05）陶瓷，其与外在因素和内在因素，如第二相，堆积密度，晶体结构，和V –O键长度。Rietveld精炼，能量色散光谱和拉曼光谱分析表明，适当的钒缺乏会引起次生相Sr ₃ V ₂ O _8的出现，这会导致晶胞体积的变化并显着改善Q  ×  f值和谐振频率的温度系数。具体来说，高级在950°C烧结的₂ V _1.90 O ₇陶瓷具有最佳的微波介电性能：介电常数11.1，Q  ×  f值36,500 GHz，谐振频率温度系数-35.6 ppm /°C。