Abstract: A one-piece antenna module, has at least one outside receiving and/or transmitting antenna element under an outer cover. The one-piece antenna module has an antenna box, which has no or few inside internal antennas and which surrounds the electronic circuits that interact with the antenna elements. The outer cover is detachably fastened to the antenna box and can be attached so as to protrude from an opening in the vehicle roof. The antenna box is closed on all sides and can be attached below the vehicle roof by a metal top side. The metal closed top side has feed-throughs for the outside antenna elements. The outside antenna elements in the outer cover are electrically coupled to the circuits inside the antenna box closed on all sides by the feed-throughs. Thus, a compact installation part is obtained, which provides complete shielding between an antenna part and a transceiver part.

Abstract: A one-piece antenna module, has at least one outside receiving and/or transmitting antenna element under an outer cover. The one-piece antenna module has an antenna box, which has no or few inside internal antennas and which surrounds the electronic circuits that interact with the antenna elements. The outer cover is detachably fastened to the antenna box and can be attached so as to protrude from an opening in the vehicle roof. The antenna box is closed on all sides and can be attached below the vehicle roof by a metal top side. The metal closed top side has feed-throughs for the outside antenna elements. The outside antenna elements in the outer cover are electrically coupled to the circuits inside the antenna box closed on all sides by the feed-throughs. Thus, a compact installation part is obtained, which provides complete shielding between an antenna part and a transceiver part.

Abstract: An improved RFID antenna system using a first RFID antenna device (in the form of a magnetic antenna (15)) and using a second RFID antenna device (21, 21?) using a flat antenna is distinguished by the following features: the second RFID antenna device comprises one flat antenna (21, 21?) or a group antenna with at least two flat antennas (21, 21?), and the metal plane of the flat antenna (21, 21?) and/or the earth or reflector plane (31; 31.1; 31.2) is divided into metal, earth or reflector plane sections (31.1; 31.2) by slots, interruptions and or recesses (133), wherein the metal, earth or reflector sections (31.1; 31.2) are electrically conductively separated from one another or are electrically conductively connected to one another.

Abstract: An improved RFID antenna system using a first RFID antenna device (in the form of a magnetic antenna (15)) and using a second RFID antenna device (21, 21?) using a flat antenna is distinguished by the following features: the second RFID antenna device comprises one flat antenna (21, 21?) or a group antenna with at least two flat antennas (21, 21?), and the metal plane of the flat antenna (21, 21?) and/or the earth or reflector plane (31; 31.1; 31.2) is divided into metal, earth or reflector plane sections (31.1; 31.2) by slots, interruptions and or recesses (133), wherein the metal, earth or reflector sections (31.1; 31.2) are electrically conductively separated from one another or are electrically conductively connected to one another.

Abstract: An improved magnetically coupling near-field RFID antenna is embodied as a magnetic H-field coupler, and the near-field RFID antenna is embodied as a looped and/or frame-shaped antenna. The looped and/or frame-shaped antenna comprises a looped or frame-shaped strip conductor. The strip conductor is arranged set apart from a ground surface parallel thereto. A dielectric is interposed. The start and the end of the strip conductor end close to each other forms a gap or spacing. The start of the strip conductor is fed to ground. The end of the strip conductor is terminated by a terminating resistor. The terminating resistor is connected between the end of the strip conductor and a ground surface.

Abstract: A multilayer antenna arrangement is distinguished in particular by the following features: a further patch antenna (B) comprising a dielectric carrier and a radiation plane is provided above the base portion or central portion of the patch arrangement, the radiation plane being provided on the upper side, opposite the base portion or central portion, of the dielectric carrier, and the further patch antenna (B) is buried at least in part in the parasitic patch arrangement, which is configured so as to be box-shaped or box-like, and/or the parasitic patch arrangement which is configured so as to be box-shaped or box-like is formed, completely or in part, as electrically conductive planes, which are provided on the further patch antenna (B) at least in partial regions on the circumferential edge surface or outer surface thereof.

Abstract: An improved beam shaping means for an external and/or roof antenna has a parasitic beam shaping means configured at a distance below the upper or outer surface of the electrically non-conductive region of the vehicle structure. The parasitic beam shaping means is configured, provided or attached in the material of the electrically non-conductive region of the vehicle structure or at the underside or inside of the electrically non-conductive region of the vehicle structure. The parasitic beam shaping means is arranged and/or configured in such a way that it, viewed from above, protrudes laterally beyond, at least in certain portions. The antenna mounting region or portion and/or an optionally provided counterweight surface and/or is arranged laterally thereto.

Abstract: An improved antenna field has at least one capacitance switched between one of the two bus bars. At least one center section of the heating wire is formed between 20% and 80% of the total length of the heating wire, and/or at least one capacitance is switched between at least two center sections of the heating wires formed between 20% and 80% of the total length of two heating wires. The at least one capacitance is greater than 50 pF.

Abstract: An RFID antenna system with the following features: the RFID antenna device, with respect to the goods identification system (GIS) or a side limit receiving this RFID antenna device, comprises at least two antenna, the at least two antennae for the goods identification system (GIS) consist of patch antennae, the at least two patch antennae are arranged mutually offset in the direction of the passageway or passage region, or at least with one component mutually offset in the passage direction, and the at least two patch antennae are arranged at an equal spacing from a floor area of the passageway and/or on the same horizontal plane or offset thereto, and, more precisely, in such a way that a straight line laid through the center points and/or centers of gravity of at least two adjacent patch antennae encloses an angle ? with respect to a horizontal plane and/or a plane that is parallel to the floor space, which angle is ?45°.

Abstract: An improved magnetically coupling near-field RFID antenna is embodied as a magnetic H-field coupler, and the near-field RFID antenna is embodied as a looped and/or frame-shaped antenna. The looped and/or frame-shaped antenna comprises a looped or frame-shaped strip conductor. The strip conductor is arranged set apart from a ground surface parallel thereto. A dielectric is interposed. The start and the end of the strip conductor end close to each other forms, a gap or spacing. The start of the strip conductor is fed to ground. The end of the strip conductor is terminated by a terminating resistor. The terminating resistor is connected between the end of the strip conductor and a ground surfaces.

Abstract: An improved tunable antenna of planar construction is distinguished by the following features: in plan view perpendicular to the effective surface (7), the electrically conductive structure (13, 113) completely or partially covers the effective surface (7), the electrically conductive structure (13, 113) is coupled and/or connected galvanically or capacitively or serially and/or with interposition with at least one electrical component (125) with the ground surface (3) and/or a chassis (B) located on a potential or ground.

Abstract: A method and device for contact-free transmission of data from and/or to a plurality of data or information carriers provide that, after the exchange of information between a read and/or write device and a data or information carrier, said carrier is switched to a standby impedance mode in order to reduce undesired interaction with data or information carriers adjoining the antenna field. This mode differs from an initial impedance mode and communication impedance modes during the emission of an information signal from the data or information carrier.

Abstract: An improved method and an improved device for activating an RFID antenna uses an antenna (A) and an antenna network (N). The antenna (A) is operated via the antenna network (N) by means of a connectable reader (R). The antenna (A) is operated as a circular or elliptical polarized antenna (A) in such a way that it is alternately left-handed and right-handed polarized.

Abstract: A multilayer antenna of planar construction comprises an electrically conductive ground face and a conductive radiation face which is arranged with lateral spacing from the ground face and extends substantially parallel thereto. A dielectric carrier is arranged between the ground face and the radiation face. Above the radiation face there is a carrying means. Above the carrying means there is provided an electrically conductive patch element. The carrying means has a thickness or height which is less than the thickness or height of the patch element.

Abstract: An improved multilayer antenna has patch assembly divided at least into two. It comprises, in addition to the primary patch element, a secondary patch additional element. The patch element and the patch additional element can be positioned toward one another and at least partly in one another to change the overall height thereof. The patch additional element is held by a separate holding and support means, preferably by a hood covering the entire antenna assembly.

Abstract: A multilayer antenna arrangement is distinguished in particular by the following features: a further patch antenna (B) comprising a dielectric carrier and a radiation plane is provided above the base portion or central portion of the patch arrangement, the radiation plane being provided on the upper side, opposite the base portion or central portion, of the dielectric carrier, and the further patch antenna (B) is buried at least in part in the parasitic patch arrangement, which is configured so as to be box-shaped or box-like, and/or the parasitic patch arrangement which is configured so as to be box-shaped or box-like is formed, completely or in part, as electrically conductive planes, which are provided on the further patch antenna (B) at least in partial regions on the circumferential edge surface or outer surface thereof.

Abstract: An improved beam shaping means for an external and/or roof antenna has a parasitic beam shaping means configured at a distance below the upper or outer surface of the electrically non-conductive region of the vehicle structure. The parasitic beam shaping means is configured, provided or attached in the material of the electrically non-conductive region of the vehicle structure or at the underside or inside of the electrically non-conductive region of the vehicle structure. The parasitic beam shaping means is arranged and/or configured in such a way that it, viewed from above, protrudes laterally beyond, at least in certain portions. The antenna mounting region or portion and/or an optionally provided counterweight surface and/or is arranged laterally thereto.

Abstract: A patch antenna comprising an electrically conductive ground plane; a first dielectric substrate layer arranged on said ground plane and having a first relative permittivity; at least one electrically conductive effective area arranged on the first dielectric substrate layer and electrically connected to one end of an electrically conductive feed line; at least one second dielectric substrate layer arranged on the effective area and having a second relative permittivity; whereby the second relative permittivity is larger or equal the first relative permittivity.

Abstract: An improved multilayer antenna has patch assembly divided at least into two. It comprises, in addition to the primary patch element, a secondary patch additional element. The patch element and the patch additional element can be positioned toward one another and at least partly in one another to change the overall height thereof. The patch additional element is held by a separate holding and support means, preferably by a hood covering the entire antenna assembly.

Abstract: An RFID antenna system for a goods identification system with the following features: the RFID antenna device and/or a side limit receiving this RFID antenna device comprise(s) at least two antenna, the at least two antennae for the goods identification system (GIS) consist of patch antennae, the at least two patch antennae are arranged mutually offset in the direction of the passageway or passage region, or at least with one component mutually offset in the passage direction, and the at least two patch antennae are arranged at an equal spacing from a floor area of the passageway and/or on the same horizontal plane or offset thereto, and, more precisely, in such a way that a straight line laid through the center points and/or centers of gravity of at least two adjacent patch antennae encloses an angle ? with respect to a horizontal plane and/or a plane that is parallel to the floor space, which angle is ?45°.