Abstract: This invention relates to an electrical connection device on a plate-type or strip-type material (1, 1?), which cannot be soldered or is difficult to solder or which is provided with a surface that cannot be soldered or is difficult to solder, having the following characteristics. A self clutching bolt (5) is provided with a bolt head (7) that, relative to the bolt body (9) beneath, has a tapered cross section such that the bolt head (7) transitions, by way of a conical or shoulder-like sloping flank (11), into the bolt body (9) having an outer circumference (9?) that has a diameter larger than that of the bolt head (7). The outer circumference (9?) of the bolt body (9) is of smooth design, or is provided with a knurling (15). In the penetration area of the self-clinching bolt (5), the plate-type or strip-type material (1, 1?) is provided with a non-flanged material edge (101).

Abstract: An electrical radiofrequency galvanic or capacitive electrical connection between two plate sections uses at least two conductor track sections to be connected electrically. The conductor track sections are arranged at a distance from one another, lying parallel to one another, at least in a plate region of the conductor track sections which remains undeformed during the production process. The at least two conductor track sections are connected to one another in a connection region using a clinching tool so as to produce a clinched joint.

Abstract: The invention relates to a retaining and anchoring device forming a retaining and anchoring section on a metal plate (1), in particular on a reflector, having the following features: a recess (19) provided in the metal plate (1), wherein the recess (19) has on the upper face (1a) of the metal plate (1) a peripheral edge or edge sections (23?) spaced apart from one another, an undercut (25) or several undercut sections (25) are formed below the peripheral edge or the edge sections (23?), and the recess (19) is free of bores or passages.

Abstract: An improved dual polarized radiator is distinguished, inter alia, by the following features: the dual polarized dipole radiator is made from a strip and/or board material, in particular a metal sheet, the dual polarized dipole radiator is constructed in one piece, and the individual portions of the dual polarized dipole radiator, including the dipole components, the feed arms, the support portions forming the balun and an associated base connecting the support portions, are connected to one another by bending and/or tilting and/or folding lines formed in the sheet-like basic material.