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CN-116325349-B - Antenna and base station

CN116325349BCN 116325349 BCN116325349 BCN 116325349BCN-116325349-B

Abstract

The application relates to the field of antennas, in particular to an antenna and a base station. The antenna comprises a reflecting plate, an antenna housing, a radiating unit and a feed network, wherein the reflecting plate is provided with a first surface and a second surface, and the first surface is opposite to the second surface. The antenna housing is arranged on the reflecting plate, an accommodating space is formed by the antenna housing and the first surface of the reflecting plate, the radiation unit is arranged in the accommodating space and is electrically connected with the feed network, and at least part of the feed network is arranged on the second surface of the reflecting plate. The heat generated by the radiating element and the feed network in the antenna can be rapidly conducted out, so that the temperature of the radiating element and the feed network is reduced.

Inventors

  • YANG ZHIMING
  • LI JIANPING
  • ZHANG RUNXIAO
  • HU WEIFENG

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260508
Application Date
20201229

Claims (15)

  1. 1. An antenna, comprising: a reflection plate having a first face and a second face, the first face being opposite to the second face; the antenna housing is arranged on the first surface of the reflecting plate, and the antenna housing and the reflecting plate form a closed accommodating space; A radiation unit located within the accommodation space; the feed network is at least partially arranged on the second surface, and the radiation unit is electrically connected with the feed network; The plurality of radiation units are distributed in the accommodating space in an array manner; In the feed network corresponding to each row of radiation units, the feed network comprises two shells and radio frequency transmission line components arranged in the two shells, wherein the shells are connected with the second surface, the two shells are connected with each other, and the two radio frequency transmission line components are connected with the connecting parts of the two shells and are connected with the reflecting plate through the connecting parts.
  2. 2. The antenna of claim 1, wherein the reflector plate is a metal reflector plate.
  3. 3. The antenna of claim 1, wherein the radome comprises a main housing, a first end cap, and a second end cap, the main housing, the first end cap, the second end cap, and the first face forming the containment space.
  4. 4. The antenna of claim 3, wherein the reflecting plate comprises a main plate body, a first baffle and a second baffle which are respectively arranged at two sides of the main plate body, the first baffle and the second baffle are arranged in parallel, and the main cover body is respectively connected with the first baffle and the second baffle.
  5. 5. The antenna of claim 4, wherein a first boss is disposed on a side of the first baffle remote from the second baffle, a second boss is disposed on a side of the second baffle remote from the first baffle, and the main housing is in contact with upper surfaces of the first boss and the second boss.
  6. 6. The antenna according to claim 4, wherein the reflecting plate further comprises a plurality of spacers, the plurality of spacers are the same as the extending direction of the first spacer, and at least one row of the radiating elements is provided between the first spacer and the spacers adjacent to the first spacer, between the second spacer and the spacers adjacent to the second spacer, and/or between two adjacent spacers.
  7. 7. An antenna according to claim 3, wherein the feed network is a plurality of, each of the radiating elements of each column being electrically connected to a respective one of the feed networks.
  8. 8. The antenna of claim 7, wherein the housing and the second face define a receiving cavity, the radio frequency transmission line assembly being located in the receiving cavity.
  9. 9. The antenna of claim 8, wherein the receiving cavity is a through-going structure and includes a first opening and a second opening; The first end cover is provided with a first protruding portion, the second end cover is provided with a second protruding portion, the first protruding portion is used for blocking the first opening, and the second protruding portion is used for blocking the second opening.
  10. 10. The antenna of any one of claims 1-9, wherein the cross section of the reflector plate is U-shaped, V-shaped or W-shaped.
  11. 11. The antenna of claim 4 or 5, wherein the main board body is a flat board; Or, the main board body comprises a plurality of sub board bodies, two adjacent sub board bodies are located on different planes, and the side, located in the accommodating space, of the sub board body is provided with the radiation unit.
  12. 12. The antenna of any one of claims 1-9, wherein the housing is U-shaped, V-shaped, semi-circular or elliptical in cross-section.
  13. 13. The antenna of any one of claims 3-5, wherein the first end cap and the second end cap are of unitary construction with the main housing; or the first end cover, the second end cover and the main cover body are detachably connected.
  14. 14. The antenna of any one of claims 1-9, wherein the housing and the reflector plate are of an integrally formed construction; or, the housing is connected with the reflection plate.
  15. 15. A base station comprising an antenna according to any of claims 1-14.

Description

Antenna and base station Technical Field The application relates to the technical field of antennas, in particular to an antenna and a base station. Background Along with the progress of science and technology, antenna frequency channel, input power and port that base station antenna feed system corresponds are all increasing constantly to the integration that has led to base station antenna feed system is and the overall arrangement density is higher and higher, and the risk that generates heat when the part in the base station antenna feed system works also can be increasing constantly like this, and spare part overtemperature in the antenna can influence antenna life. Therefore, how to quickly dissipate heat of an antenna is a problem to be solved. Disclosure of Invention The application provides an antenna and a base station, which are used for reducing the temperature of an antenna heating component and achieving the purpose of enabling the antenna to rapidly dissipate heat. In a first aspect, an embodiment of the present application provides an antenna, including a reflecting plate, a radome, a radiation unit and a feed network, where the reflecting plate has a first surface and a second surface that are oppositely disposed, the radiation unit is disposed on the first surface of the reflecting plate, at least a portion of the feed network is disposed on the second surface of the reflecting plate, the feed network is electrically connected with the radiation unit, the radome is disposed on the first surface of the reflecting plate and only encloses a closed accommodating space with the first surface of the reflecting plate, and the radiation unit is disposed in the accommodating space. When the antenna works, part of heat generated by the radiating unit can be conducted to the external environment through the antenna housing, and the other part of heat generated by the radiating unit can be conducted to the reflecting plate and conducted to the external environment through the reflecting plate. In addition, at least part of the feed network is arranged on the second surface of the reflecting plate, and the sub feed networks arranged on the second surface of the reflecting plate are exposed to air, so that heat generated by the feed network can be directly subjected to heat exchange with the outside air, the speed of transferring the heat generated by the feed network to the outside air is improved, and the feed network can not have the problem of overhigh temperature during working. It should be noted that, when a portion of the feeding network is located in the accommodating space, the heat generated by the radiating unit located in the accommodating space may also be transferred to a portion of the feeding network located in the accommodating space, and transferred from the portion to a portion of the feeding network exposed to air, so as to increase the speed of heat dissipation in the accommodating space. In addition, the antenna housing and the reflecting plate can be integrally formed, or the antenna housing and the reflecting plate are detachably connected. In some possible embodiments, the reflecting plate may be a metal reflecting plate, and since the metal reflecting plate is a good heat conductor and the second surface of the reflecting plate is not covered by the radome, the second surface of the reflecting plate is exposed to the outside of the radome, so that heat generated by the radiating unit in the accommodating space can be quickly conducted to the reflecting plate, the heat is prevented from accumulating in the accommodating space, and the heat exchange efficiency between the reflecting plate and the external air can be effectively improved, thereby improving the heat dissipation efficiency of the radiating unit. In the above embodiment, the number of the radiating units may be plural, and the plural radiating units may be distributed in the accommodating space in an array, where in this case, the feed network may be plural, and each column of radiating units may be correspondingly provided with a feed network. Specifically, each column of radiating elements and the reflecting plate can be used as an independent array, each independent array receives or transmits radio frequency signals through a corresponding feed network, and the frequencies of each independent array can be the same or different. In one possible implementation, the feed network may include a housing connected as a ground of the feed network to the second side of the reflective plate, the housing and the second side of the reflective plate forming a receiving cavity in which the radio frequency transmission line assembly is disposed. The number of the housings included in the feed network may be one or two, and each housing is provided with a radio frequency transmission line assembly, where when the number of the housings is two, the radio frequency transmission line assemblies and the metal reflection connection