| 摘要 |
<p>The invention relates to a waveguide filter (1) comprising one or more resonator cavities (5-10) which extend between an input (3) to the filter (1) and an output (4) from the filter (1). Each resonator cavity (5-10) in the filter (1) has centre line (L5-L¿10) with a chosen extension and a mechanical length, where the mechanical length of the centre line (L¿5?-L10) of each resonator cavity constitutes one of the parameters that determine the electrical length of the resonator cavity. The filter forms part of a microwave unit (2) and is characterized in that at least one of the resonator cavities (5-10) of the filter has a curved extension with respect to its centre line (L5-L10). The invention also relates to a method of producing such a filter.</p> |
