Abstract: A coaxial connector for installation in a device housing comprises a base body that has a flange for placing the coaxial connector against a wall of the device housing, wherein at least two coaxial connection contacts and at least two circuit board contacts electrically connected thereto for connecting the coaxial connector to a circuit board arranged in the device housing are arranged at the base body. The circuit board contacts have axially movable contact pins that are spring-loaded in an extension direction facing away from the base body.

Abstract: A modular antenna having specified dimensions and antenna properties for an RFID reading device is provided that has a housing and a base element inserted into the housing, wherein a coupling element having at least one infeed point, a terminal for a radio frequency line, and a radio frequency connection between the terminal and the infeed point is arranged on the base element. The base element here is inserted in a housing of the specified dimensions from a plurality of different housings and a radiator from a selection of different radiators is inserted into the housing at a coupling distance from the coupling element, with the radiator having the specified antenna properties in interaction with the base element and the housing.

Abstract: An antenna (10) for an RFID reader, the antenna (10) comprising at least two linearly polarized individual antennas (24a-b) and a feed circuit (26) which is connected to the individual antennas (24a-b), wherein the individual antennas (24a-b) are arranged relative to one another with a tilt of an internal angle and together form a circularly polarized antenna, and wherein the antenna (10) has a free space (30) in a region of the internal angle.

Abstract: An antenna (10) for an RFID reader, the antenna (10) comprising at least two linearly polarized individual antennas (24a-b) and a feed circuit (26) which is connected to the individual antennas (24a-b), wherein the individual antennas (24a-b) are arranged relative to one another with a tilt of an internal angle and together form a circularly polarized antenna, and wherein the antenna (10) has a free space (30) in a region of the internal angle.

Abstract: An antenna (100) for an RFID reading apparatus having a plurality of single antennas (10) of the inverted-F type, wherein the single antennas (10) are arranged in a plane and are arranged tilted with respect to one another within the plane, and having a feed circuit (16) that is connected to the single antennas (10) to control the single antennas (10) to generate a circular polarization having a mutual phase offset corresponding to the tilt is provided. The antenna (100) in this respect has at least four single antennas (10a-d), the single antennas (10a-d) are arranged in a direction of rotation, and the antenna (100) has a common ground plane (20, 28) in parallel with the plane.

Abstract: An antenna (100) for an RFID reading apparatus having a plurality of single antennas (10) of the inverted-F type, wherein the single antennas (10) are arranged in a plane and are arranged tilted with respect to one another within the plane, and having a feed circuit (16) that is connected to the single antennas (10) to control the single antennas (10) to generate a circular polarization having a mutual phase offset corresponding to the tilt is provided. The antenna (100) in this respect has at least four single antennas (10a-d), the single antennas (10a-d) are arranged in a direction of rotation, and the antenna (100) has a common ground plane (20, 28) in parallel with the plane.

Abstract: An RFID reading apparatus (20) for shelf occupancy detection comprises an elongated antenna (18) with an outer conductor (26) and an inner conductor (28) arranged in the outer conductor (26), an RF transceiver (22) connected with the antenna (18), and a control and evaluation unit (24) configured to communicate with an RFID transponder (14) via the RF transceiver (22) and the antenna (18) by means of RFID signals. The outer conductor (26) comprises a plurality of slot structures (16) over its longitudinal extent each for transmitting and receiving RFID signals.

Abstract: An RFID apparatus for compartment occupancy detection in a shelf, the RFID apparatus including an antenna, an RF transceiver connected to the antenna and a control and evaluation unit for communicating with an RFID transponder via the RF transceiver and the antenna by means of an RFID signal and for a detection and localization of changes in the compartment occupancy. The RFID apparatus further includes a plurality of reference transponders to be arranged on the shelf at known positions, wherein the control and evaluation unit is configured to localize, upon a change of a detectable RFID transponder population, an RFID transponder which is removed or added based on the position of a reference transponder where communication characteristics of the RFID communication have changed together with the change of the detectable RFID transponder population.

Abstract: An RFID reading apparatus (20) for shelf occupancy detection comprises an elongated antenna (18) with an outer conductor (26) and an inner conductor (28) arranged in the outer conductor (26), an RF transceiver (22) connected with the antenna (18), and a control and evaluation unit (24) configured to communicate with an RFID transponder (14) via the RF transceiver (22) and the antenna (18) by means of RFID signals. The outer conductor (26) comprises a plurality of slot structures (16) over its longitudinal extent each for transmitting and receiving RFID signals.

Abstract: An antenna (100) for an RFID reading apparatus is provided having at least one single CLL antenna (10), wherein a single CLL antenna (10) is an antenna that has an inner antenna loop (12) and a capacitively loaded antenna loop (14) which surrounds the inner antenna loop (12) and into which a capacitance (16 is introduced. In this respect, the antenna (100) has a plurality of single CLL antennas (10a-d) that are differently oriented and has a feed circuit (26) to operate the single CLL antennas (10a-d) for generating a circular polarization with a respective phase offset.

Abstract: An antenna (100) for an RFID reading apparatus is provided having at least one single CLL antenna (10), wherein a single CLL antenna (10) is an antenna that has an inner antenna loop (12) and a capacitively loaded antenna loop (14) which surrounds the inner antenna loop (12) and into which a capacitance (16 is introduced. In this respect, the antenna (100) has a plurality of single CLL antennas (10a-d) that are differently oriented and has a feed circuit (26) to operate the single CLL antennas (10a-d) for generating a circular polarization with a respective phase offset.

Abstract: An antenna (18), in particular a patch antenna for an RFID reading apparatus (10), having a circuit board (24) which has at least one slot (26) and a contact (28) at the slot (26) for feeding and/or picking up an electromagnetic signal. In this respect, the slot (26) is folded into itself and so forms a two-dimensional pattern on the circuit board (24).

Abstract: An antenna (18), in particular a patch antenna, is provided having a planar resonator element (22) which has the geometry of a polygon with a plurality of edges, wherein the resonator element (22) has a plurality of slots (26) at the edges for their extension and additionally has a plurality of projections (28) at the edges.

Abstract: An RFID reading apparatus (20) for shelf occupancy detection, the RFID reading apparatus (20) having an antenna (16, 18, 24), wherein the antenna (16, 18, 24) comprises a housing and an antenna circuit board (24) arranged in the housing, wherein the housing has an elongate hollow profile element (18) with the antenna circuit board (24) inserted into the hollow profile element (18).

Abstract: An RFID reading apparatus (20) for shelf occupancy detection, the RFID reading apparatus (20) having an antenna (16, 18, 24), wherein the antenna (16, 18, 24) comprises a housing and an antenna circuit board (24) arranged in the housing, wherein the housing has an elongate hollow profile element (18) with the antenna circuit board (24) inserted into the hollow profile element (18).

Abstract: An antenna (18), in particular a patch antenna for an RFID reading apparatus (10), having a circuit board (24) which has at least one slot (26) and a contact (28) at the slot (26) for feeding and/or picking up an electromagnetic signal. In this respect, the slot (26) is folded into itself and so forms a two-dimensional pattern on the circuit board (24).

Abstract: An antenna (18), in particular a patch antenna, is provided having a planar resonator element (22) which has the geometry of a polygon with a plurality of edges, wherein the resonator element (22) has a plurality of slots (26) at the edges for their extension and additionally has a plurality of projections (28) at the edges.