In this study, DRAs produced using CaCu₃Ti₄O₁₂ (CCTO) as a high dielectric material (ε_r) was added with BaO–SrO–Nb₂O₅–B₂O₃–SiO₂ (BSNBS) glass for possible tunability in a wideband frequency range. BSNBS glass (0.01‐1 wt%) was mixed with CCTO powders (calcined) and compacted at 250 MPa into mixed‐powder pellets. All the green body samples were then sintered at 1040°C for 10 hours. The wideband frequency tunability, measured using a network analyzer, showed that the addition of ≤0.05 wt% BSNBS glass decreased the resonance frequency from 9.51 to 9.33 GHz; later, the values increased to 9.89 GHz when BSNBS content was > 0.05 wt%. The ε_r of each sample was around 11‐36 when measured at 9.5‐11.8 GHz. The radiation pattern of CCTO for each sample that had been set up as a DRA radiated the signal equally or nearly identical to each other. Furthermore, the addition of BSNBS glass produced micrographs with finer grains, improved the density and reduced the porosity of the composite. Therefore, the addition of the BSNBS glass is a successful aid in the wideband frequency tunability of pure CCTO‐based ceramics when used as DRAs.

中文翻译：

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通过添加玻璃，CaCu3Ti4O12基介电谐振器天线的宽带频率可调性

在这项研究中，使用的DRA产生CaCu ₃的Ti ₄ ø ₁₂ （CCTO）作为高介电材料（ε _{- [R}用的BaO-的SrO -铌的溶液中加入）₂ ø ₅ -B ₂ ö ₃ -SiO ₂ （BSNBS）玻璃在宽带频率范围内可能具有可调性。将BSNBS玻璃（0.01-1 wt％）与CCTO粉末（煅烧）混合，并在250 MPa下压制成混合粉末颗粒。然后将所有生坯样品在1040℃下烧结10小时。使用网络分析仪测得的宽带频率可调性表明，添加≤0.05 wt％的BSNBS玻璃会使谐振频率从9.51 GHz降低到9.33 GHz。之后，当BSNBS含量> 0.05 wt％时，该值增加到9.89 GHz。该ε _[R在9.5-11.8 GHz下测量时，每个样本的大约11-36。对于已设置为DRA的每个样本，CCTO的辐射方向图辐射的信号彼此相等或几乎相同。此外，添加由BSNBS玻璃制成的具有更细晶粒的显微照片，提高了密度并降低了复合材料的孔隙率。因此，当用作DRA时，添加BSNBS玻璃是对基于CCTO的纯陶瓷的宽带频率可调性的成功帮助。