| When the frquency is raised to 1GHz or higher,microwave absorption filter is often applied to improve the interference suppression capability of common power-line filter. Both of these filters will not be able to meet the requirements of interference suppression for frequencies up to 10GHz. In this paper,the design of the interference suppression power-line filter based on Transmission Line Theory is presented. The basic elements of the filter are λ/4 short circuits and cascade transmission lines. The interference suppression capability is greatly improved ,when using this kind of filters. |
