Garnet type microwave ferrite sheet and preparation method thereof: Fid-Bau Portal

Garnet type microwave ferrite sheet and preparation method thereof

YUAN LIXIN / CAO DI / DU ZHAOFU / YAN XU / LI XIAOJING

The invention discloses a garnet type microwave ferrite sheet and a preparation method thereof, the thickness of the garnet type microwave ferrite sheet is 0.1-2mm, the length*width of the garnet type microwave ferrite sheet covers 1*1-203.2*203.2 mm<2>, the ferromagnetic resonance line width delta H of the garnet type microwave ferrite sheet is less than or equal to 20Oe, the chemical formula of the material of the garnet type microwave ferrite sheet is Y3-x-yCax+yZrxSnyInzFe5-x-y-z-tO12, wherein x is greater than or equal to 0 and less than or equal to 0.6, y is greater than or equal to 0 and less than or equal to 0.6, z is greater than or equal to 0 and less than or equal to 0.4, and t is greater than or equal to 0 and less than or equal to 0.5. The size of the garnet type microwave ferrite sheet covers 1*1-203.2 *203.2 mm<2>, the thickness of the garnet type microwave ferrite sheet covers 0.1-2mm, the garnet type microwave ferrite sheet with large size and thin thickness can be realized, the ferromagnetic resonance line width delta H is less than or equal to 20Oe, and the garnet type microwave ferrite sheet has the electromagnetic characteristics of narrow line width and small loss, and is suitable for miniaturized, small-loss and low-cost microwave circulators.

本发明实施例公开一种石榴石型微波铁氧体片及其制备方法，所述石榴石型微波铁氧体片厚度为0.1～2mm，长度×宽度覆盖1×1～203.2×203.2mm2，其铁磁共振线宽ΔH≤20Oe，所述石榴石型微波铁氧体片的材料的化学式为：Y3‑x‑yCax+yZrxSnyInzFe5‑x‑y‑z‑tO12，其中，0≤x≤0.6，0≤y≤0.6，0≤z≤0.4，0≤t≤0.5。本发明所述的石榴石型微波铁氧体片的尺寸覆盖1×1～203.2×203.2mm2，厚度覆盖0.1～2mm，可实现大尺寸薄厚度的石榴石型微波铁氧体片，铁磁共振线宽ΔH≤20Oe，兼具窄线宽、小损耗的电磁特性，适用于小型化、小损耗、低成本微波环行器。

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