Abstract
The present invention discloses a rectangular dual-mode filter. The rectangular dual-mode filter includes an input-output structure, a resonant cavity, and a coupling structure for connecting adjacent resonant cavities or resonant cavities and the input-output structure. The structure is arranged at both ends of the rectangular dual-mode filter, at least one of the resonant cavities is a rectangular dual-mode resonant cavity, and at least one rectangular dual-mode resonant cavity of the rectangular dual-mode filter is provided with a protruding part or a recessed part. The protruding part or the recessed part can have any shape, and multiple protruding parts or recessed parts can be provided on the same rectangular dual-mode resonant cavity. Through the arrangement of the protruding part or the recessed part, a means of adjusting the excitation intensity of the two working modes in the dual-mode resonant cavity can be added, so that the design of the position, size and length of the coupling structure is more flexible. The present invention belongs to a kind of filter technology, which is mainly used in electronic systems of various microwave bands, especially in the fields of radar, communication, missile guidance and the like.
| Translated title of the contribution | Rectangular two-mode filter |
|---|---|
| Original language | Chinese (Simplified) |
| Patent number | CN200910059148.1 |
| Publication status | Published - 9 Dec 2009 |
| Externally published | Yes |