MICROSTRIP BANDPASS FILTER Russian patent published in 2021 - IPC H01P1/203 

FIELD: electricity.

SUBSTANCE: invention relates to the super high frequency technology and can be used in selective paths of receiving and transmitting systems. A microstrip bandpass filter containing a substrate with a preset relative dielectric permittivity and thickness, wherein a metal screen is made on the one side of the substrate and a rolled irregular strip conductor is located on the opposite side of the substrate, wherein wide and narrow sections of the conductor are interconnected in series. Narrow additional sections grounded by the free end to the base are located on two opposite edges of the substrate and are orthogonally conjoined with narrow sections of the conductor in the middle, configured to form a pair of attenuation poles on both sides of the passband on the rectangular amplitude frequency response of the filter.

EFFECT: improved frequency selective properties of a microstrip bandpass filter due to increased steepness of the high-frequency slope of the passband, expanded high-frequency attenuation band and reduced dimensions of the structure.

1 cl, 2 dwg