DIRECTED COUPLER WITH WEAK COUPLING Russian patent published in 2020 - IPC H01P5/18 

FIELD: radio equipment.

SUBSTANCE: invention relates to radio engineering, and in particular to power distribution devices of high-frequency signals made on connected long lines and having weak coupling – transient attenuation between primary and secondary transmission lines of more than 15…20 dB. Splitter comprises two parallel and electromagnetically interconnected transmission lines having a coupling area with a gap S and a length L, wherein the length of the communication region L is not selected to be 0.25Λs, where Λs is wavelength in coupled transmission lines, not more than 0.05Λ, where Λ is wavelength in input and output power lines of transmission lines, dimensions L and S are optimized by criteria of simultaneous provision of specified transient attenuation and maximum possible decoupling, wave impedances of connected transmission lines are equal to wave resistances of supply and discharge lines.

EFFECT: high decoupling and accordingly directionality of the coupler, reduced losses in the primary transmission line, as well as overall dimensions while simplifying the design of the coupler.

1 cl, 6 dwg