Abstract: A method for producing a hollow conductor is specified. The hollow conductor has a first hollow-conductor section and a connecting section. The first hollow-conductor section contains a non-weldable aluminium alloy and the connecting section contains a weldable aluminium alloy. The method includes the step of: connecting the first hollow-conductor section to the connecting section by a laser-welding method.

Abstract: An optical communication unit for sending and receiving optical communication signals is described. The optical communication unit includes an optical unit, an elevation drive and an azimuth drive. The optical unit emits and/or receives optical communication signals. The elevation drive is coupled with the optical unit by way of an elevation bearing and swivels the optical unit about an elevation axis. The azimuth drive is coupled with the optical unit and the elevation drive and turns the optical unit together with the elevation drive about an azimuth axis. The elevation axis is arranged eccentrically with respect to the azimuth axis, so that the elevation axis is offset with respect to the azimuth axis by a lateral offset. This allows the optical unit to be swiveled to alongside the azimuth drive, so that a swiveling range of the optical unit is increased.

Abstract: A connecting unit for radio-frequency components has: a housing; a first interface and a second interface which are arranged on the housing and are designed to be coupled to in each case one radio-frequency component; an internal conductor which runs in the housing and is connected to the first interface and the second interface in order to establish a radio-frequency connection between the first interface and the second interface; a spacer which surrounds the internal conductor and extends at least along a portion of the length of the internal conductor. The housing is manufactured from an electrically conductive and rigid material and the spacer is arranged such that the internal conductor is at a distance from the housing at least in sections.

Abstract: A connecting unit for radio-frequency components has: a housing; a first interface and a second interface which are arranged on the housing and are designed to be coupled to in each case one radio-frequency component; an internal conductor which runs in the housing and is connected to the first interface and the second interface in order to establish a radio-frequency connection between the first interface and the second interface; a spacer which surrounds the internal conductor and extends at least along a portion of the length of the internal conductor. The housing is manufactured from an electrically conductive and rigid material and the spacer is arranged such that the internal conductor is at a distance from the housing at least in sections.

Abstract: A feed network arrangement for generating a multi-antennae signal includes a plurality of coupler devices coupled to one another in waveguide technique, and a plurality of adjustable length of line devices. At least one of the plurality of adjustable length of line devices is coupled to at least one of the plurality of coupler devices, where the one of the plurality of adjustable length of line device is configured to calibrate an electrical length of a supply line of the at least one of the plurality of coupler devices, In addition, the plurality of coupler devices are arranged such that a plurality of inputs of the feed network arrangement are disposed on a first side of the feed network arrangement and a plurality of outputs of the feed network arrangement are disposed on a second side of the feed network arrangement.

Abstract: A feed network arrangement for generating a multi-antennae signal includes a plurality of coupler devices coupled to one another in waveguide technique, and a plurality of adjustable length of line devices. At least one of the plurality of adjustable length of line devices is coupled to at least one of the plurality of coupler devices, where the one of the plurality of adjustable length of line device is configured to calibrate an electrical length of a supply line of the at least one of the plurality of coupler devices, In addition, the plurality of coupler devices are arranged such that a plurality of inputs of the feed network arrangement are disposed on a first side of the feed network arrangement and a plurality of outputs of the feed network arrangement are disposed on a second side of the feed network arrangement.