随着当下5G和6G技术的高速发展，开发出具有适中的介电常数，较高的品质因数，接近0的谐振频率温度系数的陶瓷已是当下研究的重点。通过固相法制备Ca0.95-xCu0.05(Na0.5Bi0.5)xMoO4微波介质陶瓷，研究烧结温度和组分变化对陶瓷微波介电性能的影响。当烧结温度为640 ℃、x为0.5时综合微波介电性能较好，此时陶瓷的εr=15.8，Qf=21 361 GHz，τf= ?偉d3.8×10?偉d6/℃。通过X射线衍射仪、Raman光谱仪、扫描电子显微镜研究了微波介电性能变化的机理。Ca0.45Cu0.05(Na0.5Bi0.5)0.5MoO4陶瓷与Al电极共烧结果显示有较好的相容性，表明Ca0.95?偉dxCu0.05(Na0.5Bi0.5)xMoO4陶瓷具有作为低温共烧微波介质陶瓷材料的应用潜力。

With the rapidly development of 5G and 6G technologies, developing ceramics with a moderate dielectric constant, a high quality factor, and a resonant frequency temperature coefficient close to 0 becomes a research hotspot. A novel series of microwave dielectric ceramics Ca0.95?偉dxCu0.05(Na0.5Bi0.5)xMoO4 were synthesized by a solid-state reaction method. The influences of sintering temperature and component change on the microwave dielectric properties were investigated. The ceramic property was analyzed by X-ray diffraction, Raman spectroscopy, and scanning electron microscopy. The results show that the εr of Ca0.45Cu0.05(Na0.5Bi0.5)0.5MoO4 ceramic with NB content of 0.5 sintered at 640 ℃ is 15.8, Qf is 21 361 GHz, and τf is 3.8×10-6/℃. Also, Ca0.45Cu0.05(Na0.5Bi0.5)0.5MoO4 ceramic is compatible with Al electrode, indicating that Ca0.95-xCu0.05(Na0.5Bi0.5)xMoO4 ceramic has a great potential application as a low-temperature co-fired ceramic material.