在国内，对铁氧体基片精密制造技术还没有进行系统的研究。
In our country, the systemic study on precision manufacturing technology of microwave substrate has been vacant by now.
提出在基片（特别是铁氧体基片）情况下微带波长和阻抗的计算方法。
The calculation method of microstrip wavelength and impedance with substrate (especially ferrite substrate) is given.
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