MINIATURE BANDPASS FILTER Russian patent published in 2019 - IPC H01P1/203 

FIELD: physics.

SUBSTANCE: invention relates to radio engineering, particularly to filters based on strip resonators. Miniature strip-line band-pass filter comprises a dielectric substrate suspended in a metal housing-screen, on one side of which there are U-shaped strip conductors, to the middle of each of which there are strip conductors-loops connected. On the second side of the substrate, under the ends of the said conductors, additional strip conductors are placed, which are closed by one end to the screen. Input and output transmission lines are connected to conductors of external resonators. Filter is double-mode.

EFFECT: technical result is reduction in size and increase in the length of the high-frequency strip of the barrier bandpass filter.

1 cl, 3 dwg