分形微带带通滤波器的研究和设计

目前，微波滤波器的小型化已成为一个热门的研究领域，在小型化基础上提高性能是滤波器研究的主要内容。因此，发展高性能，研究小型化的微波滤波器是当前十分热门的课题。在传统和其他结构的微带带通滤波器的基础上，结合分形概念，提出新型结构的傲带带通滤波器。该结构很好解决传统滤波器的辐射损耗和体积大等问题。文中利用上述研究，在滤波器原型基础上，设计并仿真一次分形和二次分形的滤波器结构，结果满足设计要求。

Study and Design of Microstrip Bandpass Filter with Fractal Structure

Nowadays, the miniaturization of microwave filter become a hot study field, and improve the performance of filter is the main content on the basis of miniaturization. So, develop high quality, study nfiniaturized filter is a hot study task. Tiffs paper advance new types of mierostrip filter, combine the eoneept of fractal, on the basis of other kind filters. The strueture solves radiation loss and large size problems, also restrain harmonics output effectively. In tiffs paper, we design and simulate the structure of first and second fractal filter, and the result matched the design goal very well.