Abstract: A circuitry for feeding an antenna structure includes an input for LHCP signals, an input for RHCP signals as well as four antenna outputs. In addition, the circuitry includes first, second and third quadrature hybrids as well as at least two delay lines. The first quadrature hybrid is coupled, on the input side, to the first and second inputs and is coupled, on the output side, to the second and third quadrature hybrids. The second quadrature hybrid is coupled, on the output side, to two of the four antenna outputs, the third quadrature hybrid being coupled, on the output side, to two further ones of the four antenna outputs. The at least two delay lines are arranged at two of the four antenna outputs.

Abstract: A circuitry for feeding an antenna structure includes an input for LHCP signals, an input for RHCP signals as well as four antenna outputs. In addition, the circuitry includes first, second and third quadrature hybrids as well as at least two delay lines. The first quadrature hybrid is coupled, on the input side, to the first and second inputs and is coupled, on the output side, to the second and third quadrature hybrids. The second quadrature hybrid is coupled, on the output side, to two of the four antenna outputs, the third quadrature hybrid being coupled, on the output side, to two further ones of the four antenna outputs. The at least two delay lines are arranged at two of the four antenna outputs.

Abstract: An antenna device includes at least a ground plane as well as a surface emitter. The surface emitter includes a foot element and a lid element, the foot element including a base area of at least four overturned areas via which the foot element is supported with regard to the ground plane, and the lid element being coupled to the base, so that it is spaced apart from the ground plane.

Abstract: An antenna device has a radiating unit having a plurality of antennas, configured to emit a radio signal with a radiation pattern. In addition, the antenna device has a calculator configured to generate and to apply to the plurality of antennas a plurality of feed signals based on an identification signal provided in order to generate the radio signal. The calculator is additionally configured to control the feed signals in a time-varying manner so that the radio signal is emitted with a time-varying radiation pattern.

Abstract: An antenna device has a radiating unit having a plurality of antennas, configured to emit a radio signal with a radiation pattern. In addition, the antenna device has a calculator configured to generate and to apply to the plurality of antennas a plurality of feed signals based on an identification signal provided in order to generate the radio signal. The calculator is additionally configured to control the feed signals in a time-varying manner so that the radio signal is emitted with a time-varying radiation pattern.

Abstract: An electric conductive trace includes an arch-shaped variation of a shape of at least a portion of a fractal of at least a second iteration. The portion of the fractal is larger than double of a first iteration of the fractal. The shape varied to be arch-shaped for changes of direction includes a curve radius larger than a predefined minimum curve radius.

Abstract: A device and method for determining a distance and/or orientation of a movable object includes a transmitter that is located on the object and a receiver. One of the transmitter and the receiver has an antenna having a known polarization plane. The other of the transmitter and the receiver has a counterclockwise circular polarized antenna and a clockwise circular polarized antenna.

Abstract: An antenna device for transmitting and receiving electromagnetic signals. The antenna device includes a ground plane and a radiator arranged at an radiator distance above the ground plane. In addition, the antenna device includes a plurality of parasitic elements arranged, on the ground plane, around the radiator in a radially symmetric manner, the parasitic elements being electrically connected to the ground plane.

Abstract: An RFID transponder including an antenna, a chip having at least one transmission and reception circuit as well as a memory, a dielectric carrier element which is covered on a first surface with a structured first metallization and which is covered on a second surface disposed opposite the first surface with a second metallization. The first and second metallizations are mutually electrically conductively connected, thereby forming the antenna. The first metallization is structured such that it forms two electric terminals of the antenna arranged on the first surface of the dielectric carrier element. The chip can be or is electrically contacted via these two terminals. An adaptation network is at least partly formed by the structuring of the first metallization and adapting the input impedance of the antenna in a conjugate complex manner to the impedance of the chip.

Abstract: An electric conductive trace includes an arch-shaped variation of a shape of at least a portion of a fractal of at least a second iteration. The portion of the fractal is larger than double of a first iteration of the fractal. The shape varied to be arch-shaped for changes of direction includes a curve radius larger than a predefined minimum curve radius.

Abstract: A device and method for determining a distance and/or orientation of a movable object includes a transmitter that is located on the object and a receiver. One of the transmitter and the receiver has an antenna having a known polarization plane. The other of the transmitter and the receiver has a counterclockwise circular polarized antenna and a clockwise circular polarized antenna.

Abstract: An antenna device for transmitting and receiving electromagnetic signals. The antenna device includes a ground plane and a radiator arranged at an radiator distance above the ground plane. In addition, the antenna device includes a plurality of parasitic elements arranged, on the ground plane, around the radiator in a radially symmetric manner, the parasitic elements being electrically connected to the ground plane.

Abstract: The invention relates to an RFID transponder comprising: an antenna, a chip comprising at least one transmission and reception circuit as well as a memory, a dielectric carrier element which is covered on a first surface at least sectionally with a structured first metallization and which is covered on a second surface disposed opposite the first surface at least sectionally with a second metallization, wherein the first and second metallizations are mutually electrically conductively connected, thereby forming the antenna, wherein the first metallization is structured such that it forms two electric terminals of the antenna arranged on the first surface of the dielectric carrier element, and wherein the chip can be or is electrically contacted via these two terminals and is positionable or arranged on the first surface and/or is positionable or arranged at least sectionally integrated into this surface, and an adaptation network at least partly formed by the structuring of the first metallization and adaptin

Abstract: An aperture-coupled antenna has a first radiation electrode, a ground area and a wave guide which is implemented to supply energy to the antenna. The wave guide is arranged spaced apart from the ground area on a first side of the ground area, and the first radiation electrode is arranged spaced apart from the ground area on a second side of the ground area. The ground area has an aperture including a first slot in the ground area, a second slot in the ground area and a third slot in the ground area. The first slot and the second slot together form a slot in the shape of a cross. The third slot passes through an intersection of the first slot and the second slot. The wave guide and the radiation electrode are arranged such that energy can be coupled from the wave guide through the aperture to the patch.

Abstract: The present invention provides a planar multiband antenna having a ground area, a first radiation electrode, a second radiation electrode, a third radiation electrode and a feeder. The feeder is implemented to feed the first radiation electrode. The first radiation electrode is arranged at least partly between the ground area and the second radiation electrode and does not protrude from an external periphery of the third radiation electrode. The third radiation electrode is arranged such that it completely surrounds an external periphery of the second radiation electrode, wherein there is a gap between the second radiation electrode and the third radiation electrode.

Abstract: An aperture-coupled antenna has a first radiation electrode, a ground area and a wave guide which is implemented to supply energy to the antenna. The wave guide is arranged spaced apart from the ground area on a first side of the ground area, and the first radiation electrode is arranged spaced apart from the ground area on a second side of the ground area. The ground area has an aperture including a first slot in the ground area, a second slot in the ground area and a third slot in the ground area. The first slot and the second slot together form a slot in the shape of a cross. The third slot passes through an intersection of the first slot and the second slot. The wave guide and the radiation electrode are arranged such that energy can be coupled from the wave guide through the aperture to the patch.

Abstract: The present invention provides a planar multiband antenna having a ground area, a first radiation electrode, a second radiation electrode, a third radiation electrode and a feeder. The feeder is implemented to feed the first radiation electrode. The first radiation electrode is arranged at least partly between the ground area and the second radiation electrode and does not protrude from an external periphery of the third radiation electrode. The third radiation electrode is arranged such that it completely surrounds an external periphery of the second radiation electrode, wherein there is a gap between the second radiation electrode and the third radiation electrode.