Tri-layer ZnTi_0.97Ge_0.03Nb₂O₈-TiO₂-ZnTi_0.97Ge_0.03Nb₂O₈ ceramics with different mass fractions of TiO₂ were initially prepared. The advantages of the multilayer architecture were fully demonstrated, and the microwave dielectric properties were controlled by the components of each dielectric layer. In contrast to the random distribution-type ZnTi_0.97Ge_0.03Nb₂O₈-TiO₂, this tri-layer architecture could achieve a nearly 50 % increase in the Q×f value. Meanwhile, based on the parallel distribution mode, a 10 % increase in the dielectric constant could be obtained due to the existence of Zn₂GeO₄. After sintering at 1120 ℃ for 6 h, ZnTi_0.97Ge_0.03Nb₂O₈-TiO₂-ZnTi_0.97Ge_0.03Nb₂O₈ tri-layered ceramics exhibited excellent dielectric properties (ε_r = 42.1, Q×f = 51,477 GHz and τ_f = +1.9 ppm/℃) with 0.04 wt% TiO₂, and the cooperative optimization of microwave dielectric properties was achieved. This research provides a direction for the preparation of high-performance microwave dielectric resonators for application in 5 G wireless communication technologies.

首先制备具有不同质量分数的TiO ₂的三层ZnTi _0.97 Ge _0.03 Nb ₂ O ₈ -TiO ₂ -ZnTi _0.97 Ge _0.03 Nb ₂ O ₈陶瓷。充分证明了多层体系结构的优点，并且微波介电性能由每个介电层的组分控制。与随机分布型ZnTi _0.97 Ge _0.03 Nb ₂ O ₈ -TiO _2相比，这种三层结构可以使Q× f增大近50％。值。同时，基于平行分布模式，由于存在Zn ₂ GeO ₄，可使介电常数增加10％。在1120℃烧结6小时后，ZnTi _0.97 Ge _0.03 Nb ₂ O ₈ -TiO ₂ -ZnTi _0.97 Ge _0.03 Nb ₂ O ₈三层陶瓷表现出优异的介电性能（_εr = 42.1，Q× f = 51,477 GHz和τ _˚F = 1.9 PPM /℃）与0.04重量％的TiO ₂，实现了微波介电性能的协同优化。这项研究为在5 G无线通信技术中应用的高性能微波介质谐振器的制备提供了方向。