MICROSTRIP BANDPASS FILTER Russian patent published in 2023 - IPC H01P1/203 

FIELD: microwave technology.

SUBSTANCE: filter, specifically microstrip bandpass filter. The filter consists of a microstrip resonator, which contains a dielectric substrate, one side of which is metallized and acts as a grounded base, and a straight strip conductor is applied to the other side, partially split at one end with a longitudinal slot. The relative length of the unsplit area is from 16 to 65%, and its absolute length is greater than the width. Inside the split section of the resonator there is an additional strip conductor connected at one end to the unsplit section. The additional conductor is also split by a longitudinal slot, and the unsplit section of the resonator has a cutout in form of a rectangular window free from metallization.

EFFECT: increased selectivity and extension of the rejection band of the microstrip band pass filter.

1 cl, 3 dwg