MINIATURE STRIP FILTER Russian patent published in 2018 - IPC H01P1/205 

FIELD: radio engineering and communications.

SUBSTANCE: invention relates to radio engineering, in particular to microstrip filters. Filter contains a dielectric substrate suspended between the shields, on one side of which there are screened conductors of resonators, short-circuited to the screen from one edge of the substrate, and strip conductors shorted to the other edge of the substrate are also applied to the screen on the second side of the substrate. Between the conductors of the resonators, on both sides of the substrate, additional strip conductors are placed opposite each other, galvanically connected to the free ends of the conductors of the resonators. In this case, the filter is configured to form poles of attenuation near the attenuation band.

EFFECT: reduction in size and improvement of the frequency-selective properties of the narrow-band filter.

1 cl, 4 dwg