Method and apparatus for heating and anti-freezing mobile base station antenna

Abstract

The invention relates to a heating antifreezing method and a device thereof, the invention is used for a mobile base station antenna to prevent ice hanging in winter, and the heating antifreezing method comprises: a high-power resistance connected with a direct current is arranged on an antenna backboard; direct current signals are fed in the antenna by a bias injector; the direct current signals are separated with radio-frequency signals in the antenna by a bias separator; the current of the direct current signals is led to the high-power resistance by a control switch; the antenna backboard is heated; then heat is uniformly radiated on an antenna cover by the antenna backboard; the antenna cover is heated; and the device used for realizing the method is composed of the bias injector, the bias separator, the control switch, a temperature sensor and a high-power resistance. Compared with the prior art, the heating antifreezing method and the device have the advantages of reasonable design proposal, reliable product performance, easy implementation and application, and the like, and can effectively solve the difficult problem that the mobile base station antenna affects normal transmission of communication lines because ice is hung on the surface of the antenna cover.

Description

technical field [0001] The invention belongs to the technical field of radiation or receiving devices of mobile communication systems, and relates to a heating and antifreezing method and a device thereof for preventing the antenna of a mobile base station from icing in winter. Background technique [0002] The mobile base station antenna is a key component of the mobile communication system, which is responsible for the function of radiating the radio frequency signal of the base station to a specific direction in space and receiving electromagnetic waves from a specific direction in space. Due to the characteristics of the tasks undertaken by the mobile base station antenna, the performance of the antenna radiation unit cover will directly affect the work of the antenna. When the antenna works in rainy and snowy weather in the cold season, ice on the surface of the radome will seriously change the working state of the antenna, reduce the radiation efficiency of the antenna...

AI Technical Summary

Problems solved by technology

However, the above two methods are still not suitable for the use of flat-panel antennas in a large number of mobile communication base stations. The reason is that the reflectors of the mobile communication base station antennas are isolated from the outer cover, and do not directly contact rain and snow. phenomenon; in addition, because there is a relatively closed air space between the radome and the antenna vibrator, the efficiency of hot air convection is also very low, and this flat panel antenna does not have enough extra space to add a hot air generating device, so the two Neither way is suitable

In addition, although many relevant technical personnel have thought of many ways to select antenna cover materials, which can reduce the phenomenon of ice hanging on the surface, they still cannot fundamentally solve the problem of antenna cover characteristics in cold seasons and severe weather conditions. change question

Images