Abstract: A phase-shifting system for electrically swiveling the direction of a beam of an antenna field includes several radiators with two planes of polarization. The phase-shifting system includes two jointly changeable phase shifters with microstrip lines associated therewith. The electrical length of each phase shifter can be changed by a dielectric which is slidable above the microstrip lines. Such a phase-shifting system offers a simplified design and added functional safety by arranging the microstrip lines of both phase shifters in parallel next to each other and by providing a common slidable dielectric in order to change the electrical length of the microstrip lines of both phase shifters.

Abstract: The invention relates to a connector for the detachable connection of at least one light waveguide to at least one optoelectronic component, which is arranged and electrically contacted as a chip directly to the surface of a support or a circuit board and which has an optical axis perpendicular to the support or circuit board. The light waveguide is provided with a fiber-optic plug connector at the end thereof for connection. The connector includes a base piece fixed to the surface of the support or circuit board, enclosing the optoelectronic component and includes a through-hole for the optical signal for exchange between the optical component and the light waveguide. The connector device also includes a coupling piece which connects to the base piece facing outwards and which comprises a socket opening for plugging in the standardized fiber optic plug connector.

Abstract: An optical plug-in connection including: an optical plug-in connector; a coupling configured to receive the plug-in connector; and locking means for locking the plug-in connector in the coupling when the plug-in connector is inserted into the coupling, wherein the locking means are designed to prevent unintentional unlocking when in a locked state.

Abstract: An optical plug-in connection for connecting polarization-maintaining optical fibers includes at least two plug-in connectors and a coupler into which the plug-in connectors are plugged from opposite ends. The optical fiber to be connected is fixed to the fiber end of a ferrule in each of the plug-in connectors. The coupler is provided with a guiding device into which the ferrules enter from opposite ends when the plug-in connectors are plugged into the coupler. Also provided are means for positioning the ferrules at an angle from each other. The ferrules can be positioned in relation to each other in a much more precise manner by means of such an optical plug-in connection by configuring the positioning means in such a way that the ferrules are placed at an angle that is relative to the guiding device when the plug-in connectors are plugged into the coupler.

Abstract: The invention relates to an attenuation or termination element comprising at least one resistance part which is mounted in an outer conductor and has at least one connection to an inner conductor part. The resistance part is produced from at least two separately produced plate-shaped parts which are desirably provided with a central slit enabling them to be fitted together. The attenuation or termination element can be economically produced and has high heat dissipation.

Abstract: The anti-interference filter and lightning arrester device is equipped with two series-connected gas capsule diverters (6, 7). With the gas capsule diverters (6, 7) a switching configuration (9) is connected. This switching configuration (9) is implemented such that in the event of an interference, the gas capsule diverters (6, 7) can be reliably reset to the nonconducting state. This is even possible in the presence of a DC voltage and/or high-frequency signals.

Abstract: A surge suppressor configured to receive signals from a coaxial line having a signal carrying inner conductor and a grounded outer conductor. The surge suppressor includes an inner conductor exhibiting capacitance and configured to connect to the coaxial line inner conductor, an outer conductor configured to connect to the coaxial line outer conductor and to ground, and an inductor formed of a wire encapsulated in an encapsulating material electrically coupling the inner conductor and the outer conductor. RF signals in the surge suppressor's operating bandwidth pass through the surge suppressor relatively unimpeded while electrical surges will be diverted through the inductor to the outer conductor, and therefore to ground, and possible residual pulses will be blocked from passing through the surge suppressor by the capacitance.

Abstract: The interference suppression filter and lightning current diverter device (1) comprises an inner conductor (3) and a housing (2) disposed approximately coaxially with it. At both ends of the housing (2) connectors (7, 8) are provided for the connection of coaxial lines. Coaxially with the inner conductor (3) is disposed in a hollow space (32) at least one pair of two lines (5, 6), which form a connection between inner conductor (3) and housing (2). The two lines (5, 6) are disposed parallel and spaced apart from one another, the directions of flow of the currents in the two lines (5, 6) being directed counter to one another. This configuration permits the improved diversion of interference pulses or interference signals to ground, and residual voltages and residual energies are largely eliminated.

Abstract: Disclosed is a method for removably connecting two groups of individual, parallel fibers that are delimited by end faces that are perpendicular to the fiber axis. The two groups of fibers are moved towards each other in an axial direction until each of the fibers abuts against the end face of the assigned fiber from the other group. The fibers of the two groups are aligned in pairs relative to each other before being moved into contact with each other, and any differences in fiber lengths is compensated for by elastically deforming the fiber along the fiber main axis. This method eliminates the disadvantages associated with bending the fibers because length variations are essentially compensated for by axially compressing the fibers.

Abstract: The invention relates to a dual polarised microstrip patch antenna comprising at least one individual element, each individual element comprising at least one rectangular, preferably quadratic, patch arranged on the upper face of a printed circuit board, having a feed network on the upper side thereof and being metallized on the entire surface of the lower face thereof. The aim of the invention is to improve the polarization isolation, while simultaneously simplifying the feed network. To this end, the feed network is embodied in such a way that the feed is only fed on two corners of the patch, and the at least one patch is modified in such a way that the isolation is improved between the polarizations of at least one antenna element and a plurality of individual antenna elements in relation to a non-modified patch.

Abstract: A dual band antenna includes a first linear periodic array of first individual antennas for a first frequency band and a second linear periodic array of second individual antennas for a second frequency band. The period of the first linear periodic array is essentially twice as large as the period of the second linear periodic array. The second individual antennas are arranged alternately between the first and above the first individual antennas. The first individual antennas and the second individual antennas are embodied as patch radiators. The first and second individual antennas each include a printed-circuit board arranged in a rectangular, electrically conducting box which is open towards the top in addition to several patch plates which are arranged at a distance on top of each other above the printed-circuit board and parallel to the printed-circuit board.

Abstract: A wideband monopole antenna including an emitter which is embodied in the form of a disc and vertically arranged at a predetermined spacing above an electrically conductive base plane. The disc-shaped emitter includes a modified section initially having a circular or elliptical disc form, with the modified section being limited by a border outline deviating from the circular or elliptical form.

Abstract: The invention relates to a compact and robust broadband antenna, for the frequency range from about 800 MHz up to 9 GHz, in particular, for use on railways. The antenna includes a monopole antenna element, extending in a longitudinal direction essentially parallel to and at a distance above a planar electrically-conducting base plate, between two opposing ends of the antenna element. The antenna element is electrically connected to the base plate at the first end thereof and is insulated from the base plate at the second end thereof, creating an injection point by means of which the antenna element may be connected to a device operating at high frequency.

Abstract: An antenna (10) having an emitter element which is positioned in front of a conductive reflector (13) and has a three-dimensional cast part. The cast part is implemented as conductive and has a closed peripheral structure (11) having alternating constrictions and bulges. The peripheral structure (11) spans an imaginary surface (14) which is intersected by at least two planes of symmetry (15.1, 15.3) of the cast part. At least two fastening elements (12.1, 12.2) are provided, which extend essentially perpendicular to the imaginary surface (14) and support the peripheral structure (11) at two points which lie on one of the planes of symmetry (15.1; 15.3). At the lower ends (16), the fastening elements (12.1, 12.2) are connected to the reflector (13), the fastening elements (12.1, 12.2) also being used for electrical excitation of the emitter element.

Abstract: The invention relates to a method for fabricating an optical plug connector, according to which the optical waveguide is immersed with the exposed optical fiber into a powdery adhesive and is withdrawn from the same, whereby particles of the powdery adhesive remain adhered to the surface of the fiber. The fiber with the adhered particles is then inserted into the bore of the ferrule of the plug connector and is fixed therein. The ferrule is heated to a temperature greater than or equal to the melting temperature of the adhesive and is maintained at this temperature.

Abstract: The system (1) is installed in a coaxial line for the transmission of high-frequency signals. It serves for the purpose of protecting apparatus or installations against electromagnetic pulses, overvoltages and/or lightning strokes. The system (1) comprises shortcircuit lines (5, 6), which are disposed approximately parallel to the inner conductor (3) of the coaxial line. This disposition makes possible to develop the housing (2) of the system (1) concentrically to the longitudinal axis (9) and the housing (2) has no projecting elements.

Abstract: An optical connection (10) simultaneously connects a plurality of fiber optical cables (17, 18). The optical connection (10) has at least one plug (10A) in which a number of ferrules corresponding to the number of fiber optical cables (17) to be connected are mounted with spring-back effect in the direction of connection. Each of the fiber optical cables (17) to be connected ends in a corresponding ferrule and is fixed thereto. Each ferrule is mounted with spring-back effect in a separate adapter (20) and the adapters (20) are disposed and fixed next to one another inside a common housing (19′) of the at least one plug (10A).

Abstract: An elastic roller casing is replaced on a roller core by first removing the casing and a portion of a fastening layer, thereby reducing at least part of the fastening layer in thickness, centering a new casing on the core over the partly removed fastening layer, and then filling any remaining intermediate space between the partly removed fastening layer and the casing with a material to connect the casing to the partly removed fastening layer.

Abstract: The plug connector has a first connector element (2) and a second connector element (3), which are connected to one another by means of a coupling member (26). The two connector elements (2, 3) form an outer conductor (9) and an inner conductor (10). A contact element (16) which is in the form of a cup spring and exerts an axial force on the connector elements (2, 3) in order to compensate for tolerances is arranged between the two outer conductor parts (11, 12). The contact element (16) forms a closed circular contact surface (A, B) with the respective outer conductor parts (11, 12). The plug connector can be produced at low cost and has low RF characteristics, in particular good passive intermodulation and RF emission.

Abstract: A connector assembly is provided, including a first connector body, and a rotating coupler rotatably secured to the first connector body having at least two securing members. A second connector body is also included, having at least two partially helical securing grooves formed about circumferential portions of an outer surface of the second connector body. Each of the helical securing grooves has an entry end and a terminal end. Upon assembly, the securing members enter an entry end of a respective securing groove and engage an upper axial surface thereof as the rotating coupler is rotated, and each securing member travels along the upper axial surfaces of the securing grooves toward the terminal ends thereof to securely couple the first and the second connector bodies to one another.