本文基于磁性介质和各向同性介质基片的对偶关系,研究了纵向磁化铁氧体基片上不同尺寸微带线的特性阻抗、传播常数和相移特性。通过分析可以看出:铁氧体基片上微带线的特性阻抗、传播常数以及单位长度的相移量与微带线带宽成正比。并且在更高频段,各特性线性更好,带宽更大。本研究可以很好地为微带铁氧体器件的设计提供理论基础。 In this paper, based on the duality relationship between magnetic media and isotropic media substrate, the characteristic impedance, propagation constant and phase shift of microstrip lines with different sizes on magnetized ferrite substrates are studied. Through the analysis we can see: the ferrite substrate microstrip line characteristic impedance, propagation constant and the unit length of the phase shift is proportional to the microstrip line bandwidth. And at higher frequencies, the features are more linear and have a wider bandwidth. This study can well provide a theoretical basis for the design of microstrip ferrite devices.