Abstract
As the circulator can be used in defense and commercial electronic components of the microwave transmission, so the progress of this study earn much attention. In this dissertation, the authors use the silver plating on the two side of surface of aluminum as our stripline, and successfully design the center line pattern at the center frequency of 0.9GHz. The bandwidth ratio is up to 25.46% of the circulator. Using the frequency of 0.9GHz for circulator simulation analysis to find the best stripline and ferrite ratio, in addition to the general ratio of 0.985, this study also found that 0.375 can also achieve good circulatory effect. Moreover, the author found that in the simulation experiment, the circulator size would have a limit, and simulate the use of very thin ferrite material plated on both sides of the surface of the stripline, the results can achieve our desired circulatory effect. Meanwhile, this study found that the stripline surface to maintain a cleanliness can enhance the circulatory effect, when the metal stripline after oxidation treatment, the circulatory effect can be uniform. The author believes that the content of this paper is of valuable, and can be applied on the national defense and commercial technology.