Search

CN-116137386-B - Antenna and base station

CN116137386BCN 116137386 BCN116137386 BCN 116137386BCN-116137386-B

Abstract

The application provides an antenna and a base station, wherein the antenna comprises a reflecting plate, an insulating support frame and a feed network, the insulating support frame is positioned on one side of the reflecting plate and comprises a first insulating support plate, the feed network and the insulating support frame are positioned on the same side of the reflecting plate and are connected to the insulating support frame, the feed network comprises a phase shift strip line and a first sliding medium plate, and the first insulating support plate, the phase shift strip line, the first sliding medium plate and the reflecting plate are sequentially arranged in a first direction. The reference ground of the phase shifter of the antenna provided by the application is a unilateral reference ground, the structure is simple, and the antenna can be lighter and smaller.

Inventors

  • CHEN BIN
  • LIU ZIHUI
  • ZHANG LI
  • CUI HE

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260512
Application Date
20211118

Claims (13)

  1. 1. An antenna, comprising: A reflection plate; The insulation support frame is positioned on one side of the reflecting plate and comprises a first insulation support plate; The feed network and the insulation support are positioned on the same side of the reflecting plate and connected to the insulation support, the feed network comprises a phase shift strip line and a first sliding medium plate, wherein, In a first direction, the first insulating support plate, the phase shift strip line, the first sliding medium plate and the reflecting plate are sequentially arranged, the reference ground of the phase shift strip line is the reflecting plate, and the first insulating support plate limits the first sliding medium between the first insulating support plate and the reflecting plate.
  2. 2. The antenna of claim 1, wherein the insulating support further comprises a first insulating side plate located on a side of the first insulating support plate facing the reflector plate, the first insulating side plate being disposed side-by-side with the phase shift strip and extending in a second direction that intersects the first direction.
  3. 3. The antenna of any one of claims 1-2, wherein a surface of the first sliding dielectric plate facing the phase-shift strip is further provided with a receiving groove, at least a portion of the phase-shift strip being located in the receiving groove.
  4. 4. An antenna according to any one of claims 1-3, wherein the first sliding dielectric plate is provided with a first hole penetrating the first sliding dielectric plate, the first hole extending in a second direction, the surface of the first insulating support plate facing the reflecting plate being provided with a plurality of first pins arranged in the second direction, the first pins being provided in the first hole in a penetrating manner and being slidable relative to the first hole, the second direction intersecting the first direction and being identical to the extending direction of the first sliding dielectric plate.
  5. 5. The antenna of any one of claims 1-4, wherein the first sliding dielectric plate is provided with a second hole penetrating the first sliding dielectric plate, the second hole extends along a second direction, the surface of the reflecting plate facing the first sliding dielectric plate is provided with a plurality of second pins arranged along the second direction, the second pins are penetrated in the second hole and can slide relatively to the second hole, and the second direction intersects the first direction and is the same as the extending direction of the first sliding dielectric plate.
  6. 6. The antenna of any one of claims 1-5, wherein a surface of the first sliding dielectric plate facing the reflecting plate is provided with a first groove, a surface of the reflecting plate facing the first sliding dielectric plate is provided with a first protrusion, the first groove extends in the same direction as the first sliding dielectric plate, and the first protrusion is located in the first groove and is capable of sliding relative to the first groove.
  7. 7. The antenna of any one of claims 1-6, further comprising a second sliding dielectric plate positioned between the first insulating support plate and the phase shift strip, wherein in the first direction the first insulating support plate, the phase shift strip, the first sliding dielectric plate, and the reflector plate are sequentially positioned, in particular in the first direction the first insulating support plate, the second sliding dielectric plate, the phase shift strip, the first sliding dielectric plate, and the reflector plate are sequentially positioned; the second sliding medium plate is connected with the first sliding medium plate, and the phase shifter of the feed network comprises the first insulating support plate, the second sliding medium plate, the phase shifting strip line, the first sliding medium plate and the reflecting plate.
  8. 8. The antenna of claim 7, wherein a third groove is formed in a surface of the second sliding dielectric plate facing the first insulating support plate, a third protrusion is formed in a surface of the first insulating support plate facing the second sliding dielectric plate, the third groove extends in the same direction as the second sliding dielectric plate, and the third protrusion is located in the third groove and is capable of sliding relative to the third groove.
  9. 9. The antenna of any one of claims 1-8, further comprising a radiating element fixed to a side of the insulating support frame remote from the reflecting plate, wherein in the first direction, the reflecting plate, the feed network, the insulating support frame, and the radiating element are disposed in that order.
  10. 10. The antenna of any one of claims 1-9, wherein the phase-shifting strip is of unitary construction with the insulating support.
  11. 11. The antenna of any one of claims 1-6, wherein the phase-shifting strip is located on a surface of the first insulating support plate facing the reflector plate, and the phase shifter of the feed network comprises the first insulating support plate, the phase-shifting strip, the first sliding dielectric plate, and the reflector plate.
  12. 12. The antenna of any one of claims 1-11, wherein the insulating support further comprises a second insulating support plate, the second insulating support plate being interconnected with and intersecting the first insulating support plate, the second insulating support plate being located on a side of the first insulating support plate remote from the reflector plate, and a portion of the feed network other than the phase-shifting strip being located on the second insulating support plate.
  13. 13. A base station comprising a radio frequency processing unit and an antenna according to any of claims 1-12, the radio frequency processing unit being electrically connected to the antenna.

Description

Antenna and base station Technical Field The present application relates to the field of antenna technologies, and in particular, to an antenna and a base station. Background With the rapid development of mobile communication technology, a base station antenna in a communication system has raised requirements for realizing high-efficiency, rapid and large-capacity communication and achieving high integration, miniaturization and light weight. The base station antenna can adjust the antenna pattern by setting a phase shifter to change the phase of signals in the antenna unit, thereby achieving the purpose of remote control adjustment of the network coverage area. In the existing antenna, the phase shifter, the power divider and the radiating unit are connected through cables or through the switching probe, wherein the phase shifter needs to be provided with a separate metal cavity as a radio frequency ground, the whole antenna is low in integration, more in parts and complex in structure, the miniaturization and the light weight of the antenna are not facilitated, and more production procedures are achieved. Disclosure of Invention The application provides an antenna capable of being miniaturized and light and a base station comprising the antenna. The application provides an antenna which comprises a reflecting plate, an insulating support frame and a feed network, wherein the insulating support frame is positioned on one side of the reflecting plate and comprises a first insulating support plate, the feed network and the insulating support frame are positioned on the same side of the reflecting plate and are connected to the insulating support frame, the feed network comprises a phase shifting strip line and a first sliding medium plate, and the first insulating support plate, the phase shifting strip line, the first sliding medium plate and the reflecting plate are sequentially arranged in a first direction. In one possible implementation, the reference ground of the phase shift strip is the reflective plate. In the above implementation manner, in the first direction, the first insulating support plate, the phase shift strip line, the first sliding medium plate, and the reflection plate are sequentially disposed adjacent to each other. No other parts are arranged between the first insulating support plate and the phase shift strip line, between the phase shift strip line and the first sliding medium plate and between the first sliding medium plate and the reflecting plate. There is no ground layer, reflector plate, metal plate or other metal material between the first insulating support plate and the phase shift strip line. In the above implementation manner, the insulating support frame is mainly used for fixing the feed network, a part of the multiplexing insulating support frame (the first insulating support plate) and the reflecting plate are clamped at two sides of the first sliding medium plate, and no additional component is needed to limit the first sliding medium plate, that is, the multiplexing reflecting plate is used as the reference ground of the phase shifter, and a part of the multiplexing insulating support frame (the first insulating support plate) limits the first sliding medium plate, so that the antenna integration level is improved, the structure is simplified, and the weight and the miniaturization of the antenna are realized. In one implementation, the first direction is a direction perpendicular to the overall plate surface of the reflecting plate, and the feeding network and the insulating support frame are located on the same side of the reflecting plate along the first direction. In some embodiments, the feeding network and the insulating support frame may be stacked on the same side of the reflection plate in the first direction. In one implementation, the phase shift strip and the first sliding dielectric plate extend along a second direction, the first sliding dielectric plate is capable of sliding along the second direction relative to the phase shift strip, and the second direction may intersect the first direction perpendicularly. The first direction is the thickness direction of the antenna, and the second direction is the length direction or the width direction of the antenna. As described above, in one implementation, in the first direction, the first insulating support plate, the phase shift strip line, the first sliding dielectric plate, and the reflection plate are sequentially adjacent and stacked. The structure strength of the phase shifter can be improved by the mode of sequential adjacent and laminated arrangement, and the problem that each part in the phase shifter is separated when impacted so as not to realize the phase shifting function is avoided. To facilitate assembly of the phase shifter, in one implementation, the phase shift strip is located at an edge of the feed network. In one implementation, the insulating support further includes an insulating supp