The Ba_1−xCa_xCu₂V₂O₈ (x = 0–0.20) ceramics were synthesized by using the traditional solid-phase reaction sintering method. The effects of partial substitution of Ca²⁺ for Ba²⁺ on the sintering, microstructure, relative density, crystalline phase composition, and microwave dielectric properties were studied. It is expected that by adding CaO, the τ_f value of ceramics will be increased to nearly zero. The results show that the BaCu₂V₂O₈ phase was the main crystalline phase of ceramics. However, in the samples with more CaO content, a new BaV₂O₆ phase was detected. The appearance of the BaV₂O₆ phase directly leaded to the decrease of the relative dielectric constant and the deterioration of the Qf value. The Ba_0.8Ca_0.2Cu₂V₂O₈ ceramic calcined at 725 °C for 6 h showed the following properties: ε_r = 11.8, Qf = 22300 GHz, τ_f = − 7.9 ppm/°C. The results show that the microwave device made of this ceramic has the possibility of application in the high-frequency field.

 采用传统的固相反应烧结法合成了Ba _1-x Ca _x Cu ₂ V ₂ O ₈（x = 0-0.20）陶瓷。研究了用Ca ²⁺代替Ba ²⁺对烧结，微观结构，相对密度，晶相组成和微波介电性能的影响。据预计，通过加入CaO，在τ _˚F陶瓷的价值将增加至接近零。结果表明，BaCu ₂ V ₂ O ₈相是陶瓷的主要结晶相。但是，在具有更多CaO含量的样品中，检测到新的BaV ₂ O ₆相。BaV ₂ O ₆相的出现直接导致相对介电常数的降低和Qf值的降低。巴_0.8钙_0.2的Cu ₂ V ₂ ö ₈陶瓷在725℃下6小时的煅烧表现出下列特性：ε _{- [R}  = 11.8，QF = 22300千兆赫，τ _˚F＝ -7.9ppm /℃。结果表明，由这种陶瓷制成的微波装置具有在高频领域中应用的可能性。