Radio-frequency coupler or power divider, in particular more narrow band and / or 3db - coupler or power divider

摘要

An improved couplers or power divider, in particular hf - coupler or hf - power divider, is characterized by the following features:- The four connection lines (13a, 13b; 17a, 17b) are arranged on the same side (3a) of the substrate (3) is arranged,- the two coupling paths (9; 25) are arranged on the substrate on two opposite sides (3a, 3b) is formed,- the first coupling path (9) is connected to the two associated connecting lines (13a, 13b) electrically - galvanically on the same side as the coupling path (9) is formed,- the second coupling path (25) is connected via two plated-through holes (21) with the associated connecting lines (17a, 17b) - electrically conductively connected, which on the coupling path (25) opposite side (3a) of the substrate (3) are located, and- the at the beginning (11a; 18a) as well as the respective end (11b; 18b) of the respective coupling path (9, 25) provided in the capacitors (c - 9a, c - 9b, c - 9c, c - 9d; c - 25a, c - 25b, c - 25c, c - 25d) are each designed as interdigital capacitors -.