Abstract: The present disclosure relates to multiband antenna apparatuses. An example multiband antenna apparatus includes a first dipole radiating element, a second radiating element, and a metasurface superstrate (MSS) structure. The first dipole radiating element may be configured to operate at a first frequency band and arranged on an upper plane of a support structure in a first distance to a reflector plate. The second radiating element may be configured to operate at a second frequency band and arranged on a lower plane of the support structure in a second distance to the reflector plate. The second distance is smaller than the first distance. The second frequency band is higher than the first frequency band. The MSS structure is arranged in an area inside arms of the first dipole radiating element and enhances a performance of the second radiating element.

Abstract: The present disclosure relates to antenna devices and arrays of antenna devices. One example antenna device includes a first radiator configured to radiate a first electromagnetic signal, a second radiator configured to radiate a second electromagnetic signal, and a joint feeding network including a first 180-degree coupler and a second 180-degree coupler arranged in sequence. The first 180-degree coupler receives first input signal and second input signal, and the second 180-degree coupler provides first output signal to the first radiator and second output signal to the second radiator. In the joint feeding network, a first path connects the first 180-degree coupler to the second 180-degree coupler including a first phase shifter. A second path connects the first 180-degree coupler to the second 180-degree coupler including a second phase shifter and an attenuator.

Abstract: An antenna device comprising a base plate, a first radiator, a first balun and a second radiator. The base plate having a substantially planar shape. The first radiator is configured to radiate a first electromagnetic signal in a first frequency band. The first balun extends along a first axis between the base plate and the first radiator. The first axis is oriented perpendicular to the base plate and the first radiator. The first balun is arranged in order to support the first radiator. The second radiator is configured to radiate a second electromagnetic signal in a second frequency band. The second radiator includes one or more planar structures extending along the first axis and arranged between the base plate and the first radiator. The first and the second radiator operate in different frequency bands without any interference to form a compact multiband antenna device.

Abstract: An antenna element for a multi-band antenna device includes a dielectric body provided with one or more metal layers. The dielectric body includes a base plate and one or more wall elements arranged on the base plate. One or more first radiating elements and one or more second radiating elements are arranged on the base plate, and are configured to radiate in a first and a second frequency band, respectively. A first feeding network is connected to the first radiating elements and a second feeding network is connected to the second radiating elements, for operating the first and second radiating elements as a first and second antenna array, respectively. The first feeding network is provided, at least partly, as a metal layer of the one or more metal layers on the one or more wall elements.

Abstract: An antenna device includes a first feeding node and a second feeding node, a bottom layer arranged as a cavity-backed ground, and a middle layer arranged above bottom layer. A first feeding line and a third feeding line of middle layer are electrically connected to first feeding node and a second feeding line and a fourth feeding line of middle layer are electrically connected to second feeding node. The antenna device further includes a top layer arranged above middle layer. The top layer has four slots, where a portion of first slot, a portion of second slot, a portion of third slot and a portion of fourth slot overlap with a portion of first feeding line, a portion of second feeding line, a portion of third feeding line and a portion of fourth feeding line, respectively. A radiator arranged above top layer at a distance from top layer.

Abstract: The invention refers to a radiating element comprising a support structure, a first dipole arranged on the support structure, and at least one electrically closed ring arranged on the support structure, wherein the ring surrounds the first dipole and is galvanically isolated from the first dipole, wherein a resonance frequency of the first dipole is higher than a center frequency of an operational bandwidth of the radiating element.

Abstract: The present invention provides a dual-polarized radiating element comprising a feeding arrangement and four dipole arms. The feeding arrangement comprises four slots, which extend from a periphery towards a center of the feeding arrangement and which are arranged at regular angular intervals forming a first angular arrangement. The four dipole arms extend outwards from the feeding arrangement and are arranged at regular angular intervals to form a second angular arrangement. The second angular arrangement of the four dipole arms is rotated with respect to the first angular arrangement of the four slots.

Abstract: The present disclosure provides a dual-polarized radiating element comprising a feeding arrangement and four dipole arms. The feeding arrangement comprises four slots, which extend from a periphery towards a center of the feeding arrangement and are arranged at regular angular intervals forming a first angular arrangement. The four dipole arms extend outwards from the feeding arrangement and are arranged at regular angular intervals forming a second angular arrangement. The second angular arrangement of the four dipole arms is rotated with respect to the first angular arrangement of the four slots.

Abstract: An antenna element includes a reflector plate and a radiator comprising a balun device and a dipole device for operating in a first frequency band. The dipole device is connected to the reflector plate by the balun device. A distance from the dipole device to the reflector plate is more than ¼ of a wavelength at a central frequency of the first frequency band. The balun device comprises a short-circuit at a distance from the dipole device of 15 to 35 percent of said wavelength.

Abstract: A dual band antenna element suitable for use in a compact multiband antenna array is described. The dual band antenna element may have a main radiating direction with a first radiating element for use in a first frequency band, a first electrically closed ring for use in the first frequency band galvanically isolated from and arranged at a predetermined distance from the first radiating element in the main radiating direction. The first ring) may at least partially overlap the first radiating element in the main radiating direction. The dual band antenna element may also have a second radiating element for use in a second frequency band, where the second radiating element is arranged within a circumference of the first radiating element and is arranged substantially at the predetermined distance (D) from the first radiating element in the radiation direction.

Abstract: An antenna has a plurality of first radiating elements configured to radiate in a first frequency band and a plurality of second radiating elements configured to radiate in a second frequency band. The second frequency band at least partially overlaps the first frequency band. The first radiating elements are arranged along the longitudinal direction of the antenna in a first column, and the second radiating elements are arranged along the longitudinal direction of the antenna in a second column. The second column is separated from the first column along a lateral direction of the antenna. Further, feed points of each first radiating element are separated from feed points of each second radiating element along a bore sight direction of the antenna.

Abstract: A dual band antenna element comprises a support structure being a single molded part; a first feeding circuit and a second feeding circuit both arranged on the support structure; and a first radiating element arranged on the support structure and configured to radiate in a first operating frequency band. The first radiating element is fed by the first feeding circuit. Furthermore, a second radiating element is arranged on the support structure and configured to radiate in a second operating frequency band that is lower than the first operating frequency band. The second radiating element is fed by the second feeding circuit.

Abstract: The invention refers to a radiating element comprising a support structure, a first dipole arranged on the support structure, and at least one electrically closed ring arranged on the support structure, wherein the ring surrounds the first dipole and is galvanically isolated from the first dipole, wherein a resonance frequency of the first dipole is higher than a center frequency of an operational bandwidth of the radiating element.

Abstract: A dual band antenna element suitable for use in a compact multiband antenna array is described. The dual band antenna element may have a main radiating direction with a first radiating element for use in a first frequency band, a first electrically closed ring for use in the first frequency band galvanically isolated from and arranged at a predetermined distance from the first radiating element in the main radiating direction. The first ring) may at least partially overlap the first radiating element in the main radiating direction. The dual band antenna element may also have a second radiating element for use in a second frequency band, where the second radiating element is arranged within a circumference of the first radiating element and is arranged substantially at the predetermined distance (D) from the first radiating element in the radiation direction.

Abstract: An antenna element comprises a reflector plate, a radiating element comprising a balun device and a dipole device for operating in a first frequency band. The dipole device is connected to the reflector plate by the balun device, wherein a distance from the dipole device to the reflector plate is more than ¼ of a wavelength at a central frequency of the first frequency band, and wherein the balun device comprises a short-circuit at a distance from the dipole device between 0.15 and 0.35 of said wavelength, inclusively.

Abstract: The present invention provides a dual-polarized radiating element comprising a feeding arrangement and four dipole arms. The feeding arrangement comprises four slots, which extend from a periphery towards a center of the feeding arrangement and are arranged at regular angular intervals forming a first angular arrangement. The four dipole arms extend outwards from the feeding arrangement and are arranged at regular angular intervals forming a second angular arrangement. The second angular arrangement of the four dipole arms is rotated with respect to the first angular arrangement of the four slots.

Abstract: An antenna has a plurality of first radiating elements configured to radiate in a first frequency band and a plurality of second radiating elements configured to radiate in a second frequency band. The second frequency band at least partially overlaps the first frequency band. The first radiating elements are arranged along the longitudinal direction of the antenna in a first column, and the second radiating elements are arranged along the longitudinal direction of the antenna in a second column. The second column is separated from the first column along a lateral direction of the antenna. Further, feed points of each first radiating element are separated from feed points of each second radiating element along a bore sight direction of the antenna.

Abstract: The present disclosure refers to a radiating element comprising a support structure, a first dipole arranged on the support structure, and at least one electrically closed ring arranged on the support structure. The at least one electrically closed ring surrounds the first dipole and is galvanically isolated from the first dipole, and a resonance frequency of the first dipole is higher than a center frequency of an operational bandwidth of the radiating element.

Abstract: The present invention provides a dual-polarized radiating element comprising a feeding arrangement and four dipole arms. The feeding arrangement comprises four slots, which extend from a periphery towards a center of the feeding arrangement 101 and are arranged at regular angular intervals forming a first angular arrangement. The four dipole arms extend outwards from the feeding arrangement and are arranged at regular angular intervals forming a second angular arrangement. The second angular arrangement of the four dipole arms is rotated with respect to the first angular arrangement of the four slots.

Abstract: A dual band antenna element comprises a support structure being a single molded part; a first feeding circuit and a second feeding circuit both arranged on the support structure; and a first radiating element arranged on the support structure and configured to radiate in a first operating frequency band. The first radiating element is fed by the first feeding circuit. Furthermore, a second radiating element is arranged on the support structure and configured to radiate in a second operating frequency band that is lower than the first operating frequency band. The second radiating element is fed by the second feeding circuit.