Four-branch multi-frequency cylindrical dipole antenna

Abstract

The invention discloses a four-branch multi-frequency cylindrical dipole antenna which comprises a shell, a first branch, a second branch, a third branch, a fourth branch, a copper-exposing area and a feed source. The four branches, the copper-exposing area and the feed source are coated in the shell, and the four branches are respectively connected with circuits. The four-branch multi-frequency cylindrical dipole antenna is characterized in that the first branch and the second branch are symmetrically and abreast arranged at the lower sides of the third branch and the fourth branch, the four branches are penetrated by the feed source and the copper-exposing area and integrated, the feed source is communicated with the circuits on the third branch and the fourth branch, the copper-exposing area is communicated with the circuits on the first branch and the second branch, the copper-exposing area of a hollow rod body is spliced in the centers of the first branch and the second branch and connected with the top end of the first branch and the lower end of the second branch, and the feed source is spliced in the copper-exposing area for receiving an external radio signal. The antenna structure of the four-branch multi-frequency cylindrical dipole antenna also has the advantages of small size, remarkable quakeproof effect, and the like as well as excellent wireless communication performance.

Description

technical field [0001] The invention relates to a dipole antenna, in particular to a four-branch multi-frequency dipole antenna with a columnar structure, which belongs to the technical field of wireless communication. Background technique [0002] Such as figure 1 As shown, in the existing wireless communication technology, the traditional antenna has only two branches, including the shell (not shown), and the first branch 1, the third branch 3, and the exposed copper area 5 covered by the shell. and feed6. Wherein the first branch 1 is integrated with the exposed copper area 5, and the first branch 1 and the third branch 3 are each provided with a circuit (it is a mature technology, so it will not be described in detail here), and the exposed copper area 5 and the first branch The circuit on 1 is connected, and the third branch 3 is integrated with the feed source 6. One end of the feed source 6 with a hollow copper rod structure is set on the shell, and the other end is...

AI Technical Summary

Problems solved by technology

This kind of antenna is relatively common at present, and it is applied to the structure of wireless terminal antennas (mainly wireless fixed stations), but its working range is low frequency (800 / 900MHz), and its bandwidth characteristics are narrow (such as image 3 The bandwidth characteristics shown in the figure can be seen), it is difficult to meet the requirements of multi-frequency communication in the coming 3G era

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