The microwave dielectric properties of the multiwalled carbon nanotubes (MWCNT) thick film, Ca_1 − xBa_xBi₂Nb₂O₉ (x = 0, 0.2, 0.4, 0.6, 0.8, and 1) (CBBNO) thick films, and MWCNT/CBBNO layered thick film composites in the 8–18 GHz were determined by the overlay method using the microstrip ring resonator (MSRR). Microwave properties were studied by perturbation of MSRR due to the overlay of thick films of different materials. The MWCNT thick film, CBBNO thick film, and MWCNT/CBBNO layered composite thick films were screen-printed on an alumina substrate. The experimental data was obtained for the material and/or composition dependent peak output and the resonance frequency of the MSRR. In addition, the numerical results were obtained for first harmonic radiated in the X-band region from the MSRR operating in Ku-band (15.45 GHz) frequency region. The comparison was done for the X and Ku-band responses of MSRR due to perturbation of screen-printed MWCNT thick film, CBBNO thick film, and MWCNT/CBBNO layered thick film composites.

中文翻译：

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MWCNT，Ca 1-x Ba x Bi 2 Nb 2 O 9（0≤x≤1）和MWCNT / Ca 1-x Ba x Bi 2 Nb 2 O 9（0≤x≤1）层状复合厚膜的微波介电常数使用微带环形谐振器叠加方法

多壁碳纳米管（MWCNT）厚膜Ca _1-x Ba _x Bi ₂ Nb ₂ O ₉的微波介电性能（x = 0、0.2、0.4、0.6、0.8和1）（CBBNO）厚膜和8–18 GHz的MWCNT / CBBNO层厚膜复合材料是通过使用微带环形谐振器（MSRR）的叠加方法确定的。通过覆盖不同材料的厚膜，通过对MSRR的摄动来研究微波特性。将MWCNT厚膜，CBBNO厚膜和MWCNT / CBBNO层状复合厚膜丝网印刷在氧化铝基板上。获得了取决于材料和/或成分的峰值输出以及MSRR的共振频率的实验数据。此外，从在Ku频段（15.45 GHz）频率区域中运行的MSRR获得了在X波段区域中辐射的一次谐波的数值结果。