SUPPRESSION FILTER OF MICROWAVE RANGE Russian patent published in 2012 - IPC H01P1/218 

FIELD: electricity.

SUBSTANCE: filter is arranged on a section of a coaxial wave guide. Inside the coaxial waveguide in a space between a central core and an external metal cylinder, along both sides from the central core there are 2 plates of a metamaterial, which represent resonators of double open rings shaped as printed circuit boards. Resonators are arranged in a plane perpendicular to a waveguide end. Cuts are parallel to the central core. On a resonant frequency complying with negative values of magnetic permeability the metamaterial resonators prevent passage of microwave waves in a wide band, and therefore such design works as a suppression filter.

EFFECT: expanded range and reduced labour intensiveness of manufacturing.

3 dwg