Abstract: This application provides an antenna and an array antenna. The antenna in this application includes a first radiating element and a second radiating element, where four dipoles enclose to form the first radiating element, and the second radiating element is a radiating element disposed on an inner side of the first radiating element. The first radiating element is configured to support a transmit frequency band, and the second radiating element is configured to support a receive frequency band; or the first radiating element is configured to support a receive frequency band, and the second radiating element is configured to support a transmit frequency band.

Abstract: A feeding network, an antenna, an antenna system, a base station, and a beam forming method. The antenna includes an array antenna, a feeding network, and an antenna port. The array antenna includes a plurality of radiating elements. Each output of each feeding network is connected to at least one radiating element in the array antenna. Each input of each feeding network is connected to the antenna port. Each feeding network has one input and two outputs, and one of the two outputs includes a phase shifter. The phase shifter has a first operating state to increase the coverage space of beam forming.

Abstract: A base station antenna includes a plurality of antenna arrays and a phase dispersion circuit. The plurality of antenna arrays include a plurality of radiating elements, and the plurality of radiating elements include a first radiating element and a second radiating element that have a horizontal spacing. The phase dispersion circuit is configured to adjust a phase slope of an electromagnetic signal of the first radiating element in an operating frequency band and/or a phase slope of an electromagnetic signal of the second radiating element in the operating frequency band.

Abstract: An antenna subarray and a base station antenna are disclosed. The antenna subarray includes a reflection plate, a plurality of radiation surfaces, and a ground plate of the plurality of radiation surfaces. The ground plate is vertically disposed on the reflection plate, and includes an integrated bottom end structure and a plurality of branch structures. The bottom end structure is connected to the reflection plate, and a top end of a branch structure is connected to a radiation surface. A feeder layer is disposed on a side of the ground plate, and a dielectric layer is spaced between the ground plate and the feeder layer. A first polarized feeder and a second polarized feeder are disposed on the feeder layer. The ground plate may have both a “ground” function of a polarized feeder and a “ground” function of a balun. The first polarized feeder and the second polarized feeder can implement both a function of a polarized feeder of the radiation surface and a function of a balun feeder.

Abstract: The present disclosure relates to dual-band antennas and antenna arrays. One example dual-band antenna includes a first radiating element and a second radiating element that are disposed on a reflection plate. An operating frequency band of the first radiating element is a first frequency band, and an operating frequency band of the second radiating element is a second frequency band. A minimum frequency of the first frequency band is greater than a maximum frequency of the second frequency band. The first radiating element includes a first feeding apparatus and a first radiator unit, the first feeding apparatus includes a coupling structure coupled to the first radiator unit, and the first feeding apparatus is used for coupled feeding for the first radiator unit by using the coupling structure.

Abstract: Embodiments of the present invention pertain to the field of communications technologies and disclose a multi-band antenna and a communications device. The multi-band antenna includes a reflection panel, at least one high-frequency unit, and at least one low-frequency unit. Each high-frequency unit includes a balun structure, a coupling structure, and a radiation arm structure. The balun structure includes two balun sub-structures, the coupling structure includes two coupling sub-structures, and the radiation arm structure includes two radiation arms. The high-frequency unit and the low-frequency unit are disposed on the reflection panel. Each coupling sub-structure is separately electrically connected to one balun sub-structure and one radiation arm. The coupling sub-structure is configured to transmit a signal whose frequency is higher than a preset threshold, and block a signal whose frequency is lower than the preset threshold.

Abstract: Provided are antenna apparatus and a base station, where the antenna apparatus includes a first radiator configured to radiate a low-frequency signal and a second radiator configured to radiate a high-frequency signal, the first radiator comprising at least one first stub and at least one second stub; one end of the first stub is connected to a first connecting point on the first radiator, the other end of the first stub is a free end; one end of the second stub is connected to a second connecting point on the first radiator, the other end of the second stub is a free end; and a sum of a length of the first stub, a length of the second stub, and a length of the first radiator between the first connecting point and the second connecting point is determined according to a wavelength corresponding to a predefined high frequency.

Abstract: The present application discloses a radiation apparatus, the apparatus comprises at least four radiators, two L-shaped feeding sheets, and a balun structure, the balun structure consists of four L-shaped structures formed by eight conductive plates; and each L-shaped structure is formed by two conductive plates arranged at approximately 90 degrees, each L-shaped structure is electrically connected to one radiator at one end of the balun structure, and angles between a length direction of the radiator and two conductive plates are approximately 45 degrees; every two adjacent L-shaped structures are arranged in a T shape, and the four radiators are approximately in a cross shape and are approximately in a same horizontal plane; two adjacent conductive plates of every two L-shaped structures are approximately parallel to each other and are spaced by a preset distance to form four feeding slots.

Abstract: A multicast service processing method and an access device. In the method, an access device receives an on-demand request; the access device separately sends the on-demand request to a multicast source device through a first uplink port of the access device and a second uplink port of the access device, so that the multicast source device sends a first multicast packet and a second multicast packet based on the on-demand request; the access device receives the first multicast packet through the first uplink port of the access device, and receives the second multicast packet through the second uplink port of the access device; the access device obtains a multicast data stream based on attribute information of the first multicast packet and attribute information of the second multicast packet; and the access device sends the obtained multicast data stream to the program terminal.

Abstract: This application provides an antenna and an array antenna. The antenna in this application includes a first radiating element and a second radiating element, where four dipoles enclose to form the first radiating element, and the second radiating element is a radiating element disposed on an inner side of the first radiating element. The first radiating element is configured to support a transmit frequency band, and the second radiating element is configured to support a receive frequency band; or the first radiating element is configured to support a receive frequency band, and the second radiating element is configured to support a transmit frequency band.

Abstract: Embodiments of the present invention pertain to the field of communications technologies and disclose a multi-band antenna and a communications device. The multi-band antenna includes a reflection panel, at least one high-frequency unit, and at least one low-frequency unit. Each high-frequency unit includes a balun structure, a coupling structure, and a radiation arm structure. The balun structure includes two balun sub-structures, the coupling structure includes two coupling sub-structures, and the radiation arm structure includes two radiation arms. The high-frequency unit and the low-frequency unit are disposed on the reflection panel. Each coupling sub-structure is separately electrically connected to one balun sub-structure and one radiation arm. The coupling sub-structure is configured to transmit a signal whose frequency is higher than a preset threshold, and block a signal whose frequency is lower than the preset threshold.

Abstract: Embodiments of this disclosure disclose a planar array antenna, including at least one first radiation array arranged along a first direction. The first radiation array includes at least one first radiation unit and at least one radiation unit pair, the first radiation unit and the radiation unit pair are disposed on an axis of the first radiation array, the radiation unit pair includes at least two second radiation units, and the at least two second radiation units are symmetric with respect to the axis of the first radiation array. In addition, the embodiments of this disclosure further disclose a communications device to which the planar array antenna is applied.

Abstract: The present application discloses a radiation apparatus, the apparatus comprises at least four radiators, two L-shaped feeding sheets, and a balun structure, the balun structure consists of four L-shaped structures formed by eight conductive plates; and each L-shaped structure is formed by two conductive plates arranged at approximately 90 degrees, each L-shaped structure is electrically connected to one radiator at one end of the balun structure, and angles between a length direction of the radiator and two conductive plates are approximately 45 degrees; every two adjacent L-shaped structures are arranged in a T shape, and the four radiators are approximately in a cross shape and are approximately in a same horizontal plane; two adjacent conductive plates of every two L-shaped structures are approximately parallel to each other and are spaced by a preset distance to form four feeding slots.

Abstract: The present application discloses a radiation apparatus, the apparatus comprises at least four radiators, two L-shaped feeding sheets, and a balun structure, the balun structure consists of four L-shaped structures formed by eight conductive plates; and each L-shaped structure is formed by two conductive plates arranged at approximately 90 degrees, each L-shaped structure is electrically connected to one radiator at one end of the balun structure, and angles between a length direction of the radiator and two conductive plates are approximately 45 degrees; every two adjacent L-shaped structures are arranged in a T shape, and the four radiators are approximately in a cross shape and are approximately in a same horizontal plane; two adjacent conductive plates of every two L-shaped structures are approximately parallel to each other and are spaced by a preset distance to form four feeding slots.

Abstract: The present invention discloses an antenna radiating element and an antenna. The antenna radiating element includes a pair of dipoles that are disposed crosswise from one another, forming four dipole arms, and a plurality of external parasitic elements. Each external parasitic element of the plurality of external parasitic elements is: disposed between two neighboring dipole arms in the four dipole arms; and separated from the two neighboring dipole arms and other external parasitic element of the plurality of external parasitic elements. In embodiments of the present invention, the antenna radiating element has a very simple structure, may be directly formed by sheet metal parts, and is convenient to process and manufacture. Also, the parasitic element assembly achieves an effect of reducing a volume of the entire antenna, and therefore both production costs and maintenance costs are reduced.

Abstract: The present application discloses a radiation apparatus, the apparatus comprises at least four radiators, two L-shaped feeding sheets, and a balun structure, the balun structure consists of four L-shaped structures formed by eight conductive plates; and each L-shaped structure is formed by two conductive plates arranged at approximately 90 degrees, each L-shaped structure is electrically connected to one radiator at one end of the balun structure, and angles between a length direction of the radiator and two conductive plates are approximately 45 degrees; every two adjacent L-shaped structures are arranged in a T shape, and the four radiators are approximately in a cross shape and are approximately in a same horizontal plane; two adjacent conductive plates of every two L-shaped structures are approximately parallel to each other and are spaced by a preset distance to form four feeding slots.

Abstract: A multicast service processing method and an access device. In the method, an access device receives an on-demand request; the access device separately sends the on-demand request to a multicast source device through a first uplink port of the access device and a second uplink port of the access device, so that the multicast source device sends a first multicast packet and a second multicast packet based on the on-demand request; the access device receives the first multicast packet through the first uplink port of the access device, and receives the second multicast packet through the second uplink port of the access device; the access device obtains a multicast data stream based on attribute information of the first multicast packet and attribute information of the second multicast packet; and the access device sends the obtained multicast data stream to the program terminal.

Abstract: The present application discloses a radiation apparatus, the apparatus comprises at least four radiators, two L-shaped feeding sheets, and a balun structure, the balun structure consists of four L-shaped structures formed by eight conductive plates; and each L-shaped structure is formed by two conductive plates arranged at approximately 90 degrees, each L-shaped structure is electrically connected to one radiator at one end of the balun structure, and angles between a length direction of the radiator and two conductive plates are approximately 45 degrees; every two adjacent L-shaped structures are arranged in a T shape, and the four radiators are approximately in a cross shape and are approximately in a same horizontal plane; two adjacent conductive plates of every two L-shaped structures are approximately parallel to each other and are spaced by a preset distance to form four feeding slots.

Abstract: The present application provides a multi-frequency array antenna. The multi-frequency array antenna includes at least one dual-polarized low frequency subarray (21) and at least one dual-polarized high frequency subarray (22), where the dual-polarized low frequency subarray (21) and the dual-polarized high frequency subarray (22) are arranged, within a same radome (23), in parallel along an axial direction (24) of the multi-frequency array antenna, the dual-polarized low frequency subarray includes at least two types of dual-polarized low frequency radiation unit pairs (211), and each of the dual-polarized low frequency radiation unit pairs includes at least four low frequency radiation units.

Abstract: The present invention discloses an antenna radiating element and an antenna, where the antenna radiating element includes a pair of crosswise disposed dipoles and parasitic element assemblies; the parasitic element assembly is disposed in an included angle formed by two neighboring dipole arms of the crosswise disposed dipoles; the parasitic element assembly is fastened to the dipole; and a radiation signal transmitted by the dipole is reflected and converged by using the parasitic element assembly. In embodiments of the present invention, the antenna radiating element has a very simple structure, may be directly formed by sheet metal parts, and is convenient to process and manufacture. Also, the parasitic element assembly achieves an effect of reducing a volume of the entire antenna, and therefore both production costs and maintenance costs are reduced.