MICROSTRIP DIRECTIONAL DEVICE Russian patent published in 2009 - IPC H01P5/18 

FIELD: physics; radio.

SUBSTANCE: invention concerns hyperfrequencies technique and can be used in radio-electronic receive/transmit paths. The specified technical result is reached because in the microstrip directional device the directional coupler is supplied by means of strengthening of directionality in a wide frequency range in the form of three capacitive strips (CS); slots in the metalised underplate of a dielectric substrate of the coupler and a half-wave CS microstrip piece are distributed on length of area of communication of quarter wave lines and have geometrical shape and a direction of their orientation in the planes of their arrangement raising directionality of the coupler. Two extreme CS are located one by one over the ends of the quarter wave connected lines with possibility of their adjusting drift along communication area at coupler readjustments, the third - central CS is located between two extreme CS symmetrically it. The slot is executed under central CS with crossover by the projection with the quarter wave connected lines at an angle of 90°, and the half-wave microstrip piece is allocated between the quarter wave connected lines under the three CS and loaded from an input terminal of a high-frequency path by the capacitor trim element providing reduction of transitive signal attenuation of the coupler, and from another - with optimum load.

EFFECT: increase of electric parametres of the arrangement regulation maintainability.

2 cl, 2 dwg