Abstract

In this article, a new method is suggested to improve the frequency responses of dual-mode waveguide filters employing cross-shaped slots. According to this method, regarding one cross-shaped slot between two cavities, the horizontal (vertical) mode in one cavity influences the vertical (horizontal) mode in the other cavity to a much lesser extent. It enhances the overall performances. A 4th-order dual-mode filter is used as an example and it validates the method. © 2003 Wiley Periodicals, Inc. Int J RF and Microwave CAE 13: 285–292, 2003.

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