SMALL-SIZE NON-REFLECTING BAND-PASS FILTER Russian patent published in 2024 - IPC H01P1/203 

FIELD: microwave radio engineering.

SUBSTANCE: invention relates to microwave radio engineering, specifically to small-sized non-reflecting band-pass filters. Filter comprises sections of interconnected strip lines. First section is connected by output ends with input ends of second section, oriented relative to first section perpendicularly, output ends of the second section are connected to the input ends of the third section, oriented perpendicular to the second section and parallel to the first section so that the output ends of the third section and the output ends of the first section are located opposite each other, output ends of the third section are connected to the input ends of the fourth section oriented perpendicular to the fourth section. Output ends of the third and fifth sections are located opposite each other, the output ends of the fourth section are connected to the input ends of the fifth section perpendicular to the third section, input ends of the first conductor of the first section serves as the input of the small-sized non-reflecting band-pass filter, and the output end of the second conductor of the fifth section serves as the output of the filter. Input of the second conductor of the first section and the output of the first conductor of the fifth section are connected to frequency-selective circuits in the form of series-connected inductors and capacitors, to which a resistor is connected in parallel. Outputs of frequency-selective circuits are connected to common conductor.

EFFECT: reduced dimensions.

1 cl, 4 dwg