MONOLITHIC CERAMIC FILTER Russian patent published in 2008 - IPC H01P1/205 

FIELD: physics.

SUBSTANCE: invention is related to microwave equipment and intended for application mostly in centimeter range of waves. Monolithic ceramic filter is suggested, which consists of metallised high-quality ceramic unit, in which two or more resonators are shaped, elements of filter input and output elements are installed coaxially to each other and perpendicularly to axes of resonators. Load on filter bottom facet is arranged in the form of short-circuited sections of band lines. On top facet capacitance load of resonators is arranged in the form of conducting platforms that simultaneously serve as additional elements of capacitance connection between input and output controlled with the help of adjusted elements. To weaken electromagnet connection between resonators on bottom facet of monolithic ceramic unit groove of rectangular shape is arranged between openings of resonators.

EFFECT: expansion of bandwidth of monolithic ceramic filter at preset frequencies without increase losses in bandwidth with preservation of filter dimensions.

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