| abstract |
The invention discloses a garnet ferrite material with high dielectric constant and high saturation magnetization, belonging to the field of microwave ferrite materials. Its chemical formula is as follows: Bi a C b Gd c Y 3‑a‑b‑ c Fe 5‑d‑e‑f‑g‑δ Hf d Zr e V f Sn g O 12 , where 1.0≤a≤1.7, 0≤b≤1, 0≤c≤0.3, 0≤d≤0.6, 0≤e ≤0.5, 0≤f≤0.3, 0≤g≤0.3, δ is the amount of iron deficiency, the invention also discloses a preparation method and application thereof, the dielectric constant of the ferrite material of the invention is 32-33, and At the same time, it has high saturation magnetization and low ferromagnetic resonance linewidth. These advantages can not only effectively reduce the size of the device, but also increase the bandwidth of the device and reduce the insertion loss of the device, which can be used for miniaturized microwave devices. It is especially suitable for radar, 5G communication and other fields. In addition, the preparation method of the present invention is reasonable and convenient for popularization and application. |