Monopole water antenna

Abstract

The monopole water antenna comprises a coaxial cable, a metal bottom plate, a Teflon base, a first water tank, a second water tank and four arc-shaped water arms, the Teflon base is located above the metal bottom plate, the lower end face of the Teflon base is attached to the upper end face of the metal bottom plate, the first water tank is achieved by forming a cylindrical cavity in a cylindrical body, and the second water tank is achieved by forming a second cavity in the cylindrical body. The cylindrical main body is located above the Teflon base, the lower end face of the cylindrical main body is attached to the upper end face of the Teflon base, an inner core of the coaxial cable sequentially penetrates through the metal bottom plate, the Teflon base and the bottom of the cylindrical main body and then enters the cylindrical cavity, and the second water tank is achieved by forming a cone frustum cavity in the cone frustum main body. The small head end of the cone frustum main body is attached to the upper end face of the cylindrical main body, four through holes communicated with the cone frustum cavity are evenly formed in the side wall of the cone frustum main body along a circle at intervals, and the four arc-shaped water arms are installed at the four through holes in a one-to-one correspondence mode; the antenna has the advantages that the structure is simple, and omnidirectional radiation can be realized in two working frequency bands.

Description

technical field [0001] The present invention relates to a water antenna, in particular to a monopole water antenna. Background technique [0002] Water is one of the essential substances in our life and plays an important role in our daily life. Water has the characteristics of easy access, transparency and fluidity. Compared with traditional antennas, the water antenna designed based on the characteristics of water is not only low cost, convenient to access, but also has the characteristics of concealment and emergency response, and has been very popular in recent years. [0003] The existing monopole water antenna is loaded with water with different conductivity, seawater and pure water. Seawater and pure water can work in one frequency band respectively, and have never realized dual frequency band operation. The first working frequency band realized by seawater is The wifi frequency band (2.420-2.4835GHz) is used for indoor communication, and the second working frequenc...

AI Technical Summary

Problems solved by technology

However, because the existing monopole water antenna needs to load seawater and pure water at the same time, it needs to design the radiation structure of seawater and pure water separately, so that the structure is more complicated. At the same time, the water column formed in the radiation structure of seawater and pure water Both are cylinders, so the radiation direction in the two frequency bands is not omnidirectional radiation

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