DIRECTIONAL COUPLER Russian patent published in 2015 - IPC H01P5/18 

FIELD: radio engineering, communication.

SUBSTANCE: directional coupler, made on a dielectric substrate with a deposited directional coupler topology, consists of four sections of feed striplines and a region of coupled homogeneous striplines, wherein the region of coupled homogeneous striplines includes two identical portions of additional coupled striplines situated on the edges of the region of coupled homogeneous striplines symmetrically about the centre thereof. The total length of the region of coupled striplines L=(0.2-0.3)λ_coup, where λ_coup is the wavelength of the region of coupled striplines at centre frequency.

EFFECT: providing a simple design while improving technical characteristics at the same time.

3 cl, 4 dwg