METHOD OF SUPPRESSING REFLECTED WAVES AT OUT-OF-BAND FREQUENCIES OF MICROWAVE PATH Russian patent published in 2025 - IPC H01P1/36 

FIELD: microwave equipment.

SUBSTANCE: method of suppressing reflected waves at out-of-band frequencies of a microwave path, which consists in the fact that an absorber of reflected waves is introduced into the microwave path between the input of the microwave path and the input of the source of reflected waves, reflected waves absorber is double-channel with counter-directional coupling between channels, some diagonal ports of channels are loaded with buffer resonant loads with impedance Z_BRL=R_BRL+jX_BRL, selected so that in frequency bands of reflected waves source rejection Δƒ₁ and Δƒ₂ Z_BRL=R_BRL, and in the transmission frequency band of the reflected wave source Δƒ₀₁ the Z_BRL module tends to zero, the other channel ports, the left one serves as the input of the microwave path, a signal with a wide frequency range is transmitted to it Δƒ₁+Δƒ₀₁+Δƒ₂+Δƒ₀₂…, right one serves as the output of the absorber of reflected waves, an incident wave arriving from the input of the microwave path with a transmission coefficient close to one arrives, and reflected wave from input of source of reflected waves with coefficient of reflection close to one in frequency ranges Δƒ₁ and Δƒ₂, reflected wave from source of reflected waves is divided between connected channels and absorbed on buffer resonance loads.

EFFECT: suppression of waves reflected from the source.

1 cl, 12 dwg