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

FIELD: radio engineering.

SUBSTANCE: invention relates to radio engineering, in particular to devices for frequency signal filtering. The microstrip bandpass filter comprising an insulator substrate which is completely metallized on one side by a shielding layer and the stripline conductors of the resonators are located on the other side. The stripline conductors of the resonators are located on two parallel lines in the middle part of the substrate in length and the segments of the microstrip lines forming filter links between the stripline conductors of the resonators are located on opposite lines chequerwise relative to each other, wherein the opposite segments of the microstrip lines are shifted relative to each other by a quarter of the wavelength from the filter input to the output, and the opposite stripeline conductors of the resonators located opposite each other are shifted in relation to each other by one-sixth of the wavelength.

EFFECT: reduced size of the microstrip bandpass filter relative to the nearest analogue, with a simultaneous reduction in the level of direct loss and increased level of return losses in the bandwidth.

3 cl, 8 dwg