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Yttrium iron garnet ferrite material with low line width and low loss and preparation method thereof
The invention relates to the technical field of microwave ferrite materials, in particular to a low-linewidth and low-loss yttrium iron garnet ferrite material which adopts Y, Bi and Al series as a basic formula, and the rectangularity of a hysteresis loop is improved through trace doping of Mn; the resonance line width delta H is reduced through small substitution of In and Zr, so that the characteristic of small loss is realized; and the combination of Ca and V is used for replacing and regulating the saturation magnetization intensity 4piMs so as to be suitable for devices with different frequencies. According to the present invention, the dielectric loss tan [delta] e is less than or equal to 2 * 10 <-4 >, the resonance line width [delta] H is less than or equal to 20 Oe, the tested minimum insertion loss is 0.25 dB, and the residual magnetism ratio Rs is greater than or equal to 0.725, such that the requirements of the circulator and the isolator capable of bearing the high peak power during the low-field work can be met, and the locking type device capable of working under the high power can be met so as to provide the high-power locking type device with the high power performance. And the requirements of high remanence ratio and high-power materials are met.
本发明涉及微波铁氧体材料技术领域，具体为一种低线宽低损耗的钇铁石榴石铁氧体材料，采用Y、Bi、Al系列为基础配方，并通过Mn的微量掺杂提高磁滞回线的矩形度；通过In、Zr的少量取代降低共振线宽ΔH实现小损耗特性；通过Ca和V的组合取代调控饱和磁化强度4πMs以适合不同频率器件选用。兼具低线宽ΔH、高剩磁比Rs（20Oe外场下测试）和低的电磁损耗，其中，介电损耗tanδe≤2×10‑4，共振线宽ΔH≤20Oe，测试出的最低插入损耗为0.25dB，剩磁比Rs≥0.725，不但可满足低场工作承受高峰值功率的环行器和隔离器的需求，而且可以满足大功率下工作的锁式器件，符合高剩磁比、高功率材料的需求。
Yttrium iron garnet ferrite material with low line width and low loss and preparation method thereof
The invention relates to the technical field of microwave ferrite materials, in particular to a low-linewidth and low-loss yttrium iron garnet ferrite material which adopts Y, Bi and Al series as a basic formula, and the rectangularity of a hysteresis loop is improved through trace doping of Mn; the resonance line width delta H is reduced through small substitution of In and Zr, so that the characteristic of small loss is realized; and the combination of Ca and V is used for replacing and regulating the saturation magnetization intensity 4piMs so as to be suitable for devices with different frequencies. According to the present invention, the dielectric loss tan [delta] e is less than or equal to 2 * 10 <-4 >, the resonance line width [delta] H is less than or equal to 20 Oe, the tested minimum insertion loss is 0.25 dB, and the residual magnetism ratio Rs is greater than or equal to 0.725, such that the requirements of the circulator and the isolator capable of bearing the high peak power during the low-field work can be met, and the locking type device capable of working under the high power can be met so as to provide the high-power locking type device with the high power performance. And the requirements of high remanence ratio and high-power materials are met.
本发明涉及微波铁氧体材料技术领域，具体为一种低线宽低损耗的钇铁石榴石铁氧体材料，采用Y、Bi、Al系列为基础配方，并通过Mn的微量掺杂提高磁滞回线的矩形度；通过In、Zr的少量取代降低共振线宽ΔH实现小损耗特性；通过Ca和V的组合取代调控饱和磁化强度4πMs以适合不同频率器件选用。兼具低线宽ΔH、高剩磁比Rs（20Oe外场下测试）和低的电磁损耗，其中，介电损耗tanδe≤2×10‑4，共振线宽ΔH≤20Oe，测试出的最低插入损耗为0.25dB，剩磁比Rs≥0.725，不但可满足低场工作承受高峰值功率的环行器和隔离器的需求，而且可以满足大功率下工作的锁式器件，符合高剩磁比、高功率材料的需求。
Yttrium iron garnet ferrite material with low line width and low loss and preparation method thereof
低线宽低损耗的钇铁石榴石铁氧体材料及其制备方法
XIAO SHIYONG (Autor:in) / WU HAO (Autor:in) / YAO QIWEI (Autor:in) / DENG ZHIJIE (Autor:in) / DAN HONGMEI (Autor:in) / AO HONG (Autor:in) / TANG YE (Autor:in)
12.12.2023
Patent
Elektronische Ressource
Chinesisch
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