Method for creating a slot-line on a multilayer substrate and multilayer printed circuit comprising at least one slot-line realized according to said method and used as an isolating slot or antenna

摘要

The present invention relates to a method for realizing a short-circuited slot-line on a multilayer substrate comprising at least a first conductive layer, a dielectric layer and a second conductive layer, the method comprising the following steps: - etching in the first conductive layer a slot-line (2) having an electrical length L, - etching in the first conductive layer, around the slot-line, a first portion (5a) of a first band having an electrical length L1 ≤ L, - etching in the first conductive layer, around the slot-line, a second portion (5b) of said first band, having an electrical length L2 ≤ L, - etching in the second conductive layer, a second band (7) in the form of a loop having an electrical length L3, - one end (8a) of the second band being connected to the first part of the first band and the other end (8b) of the second band being connected to the second part of the first band so as to form a conductive loop. The method is used notably to realize isolating slot-lines and slot-antennae.