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<p>CuO-doped (Mg<sub>0.4</sub>Zn<sub>0.6</sub>)<sub>2</sub>SiO<sub>4</sub> ceramics were prepared by the solid-phase method. The sintering temperature of (Mg<sub>0.4</sub>Zn<sub>0.6</sub>)<sub>2</sub>SiO<sub>4</sub> ceramics can be reduced by doping CuO. The 1 wt.% CuO-doped (Mg<sub>0.4</sub>Zn<sub>0.6</sub>)<sub>2</sub>SiO<sub>4</sub> ceramics prepared at 1225&#xa0;°C showed good dielectric (1&#xa0;MHz) and microwave dielectric properties with the following parameters: <i>ρ</i> = 3.34&#xa0;g/cm<sup>3</sup>, <i>ε</i><sub><i>r</i></sub> = 6.98, <i>tanδ</i> = 1.23 × 10<sup>–3</sup>, <i>ε</i><sub><i>r</i></sub> = 6.49, <i>Q</i> × <i>f</i> = 2982&#xa0;GHz, and <i>τ</i><sub><i>f</i></sub> = −47.17&#xa0;ppm/°C. On this basis, a microstrip patch antenna is designed with an operating frequency of 2.45&#xa0;GHz. The simulation results show that when the resonant frequency is 2.45&#xa0;GHz, the S11 parameter is −17.49&#xa0;dB, the bandwidth at −10&#xa0;dB is 33.9&#xa0;MHz, the maximum gain is 5.34&#xa0;dB, and the radiation efficiency is 83.64%.</p>

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Preparation of low-temperature sintered (Mg0.4Zn0.6)2SiO4 ceramics with CuO addition and simulation for application in microwave antennas

  • 期刊论文

  • 发表日期：

    2025年8月29日

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  • Miao Zhang,
  • Xiangchun Liu,
  • Kai Zhang,
  • Ziyao Wei,
  • Jiahao Liu,
  • Jiahui Wang,
  • Hao Zhou,
  • Yujun Bai,
  • Danni Chen,
  • Jiayan Guan,
  • Hanbi Zhang,
  • Feng Gao

摘要

CuO-doped (Mg0.4Zn0.6)2SiO4 ceramics were prepared by the solid-phase method. The sintering temperature of (Mg0.4Zn0.6)2SiO4 ceramics can be reduced by doping CuO. The 1 wt.% CuO-doped (Mg0.4Zn0.6)2SiO4 ceramics prepared at 1225 °C showed good dielectric (1 MHz) and microwave dielectric properties with the following parameters: ρ = 3.34 g/cm3, εr = 6.98, tanδ = 1.23 × 10–3, εr = 6.49, Q × f = 2982 GHz, and τf = −47.17 ppm/°C. On this basis, a microstrip patch antenna is designed with an operating frequency of 2.45 GHz. The simulation results show that when the resonant frequency is 2.45 GHz, the S11 parameter is −17.49 dB, the bandwidth at −10 dB is 33.9 MHz, the maximum gain is 5.34 dB, and the radiation efficiency is 83.64%.