Abstract: A miniaturized electronic device including a substrate one surface of which carries a first pattern of metallic elements of electrical circuits and a second pattern of metallic elements of electrical circuits which are crossing each other at at least some spots, the crossing elements of electrical circuits being separated by a dielectric material, wherein the device exhibits a multilayer structure, the dielectric material is a serigraphiable dielectric arranged as a thick layer in which the patterns of electric circuits are arranged in different planes, the device being usable for providing reliable devices such as circulation isolators.

Abstract: A dielectric resonator has a pattern of metallic micro-wave strips deposited onto a dielectric substrate having a high relative permittivity. The pattern is of a generally annular shape and has a slot formed in the annular pattern. The resonator includes an positive feedback circuit coupled thereto having an active element, such as a transistor, and is usable, for instance, as a band-cut off or band-pass filter.

Abstract: A power distributor device comprising a metal body for supporting a number of coaxial connectors of various dimensions, wherein the inner end of the pin of one connector of greater size exhibits a central recess into which are opening holes extending through the side wall of the recess and adapted to receive the inner ends of the pins of the other connectors, the recess communicating with the outside through a passage-way in the wall of the supporting body which permits the insertion into said recess of a means for electrically connecting said inner ends of the pins of the whole of the connectors, the invention being usable with multicoupling elements.