Dual-frequency dual-polarized antenna and radiation unit

Abstract

The invention relates to a dual-frequency dual-polarized antenna and a radiation unit. The radiation unit comprises two pairs of radiation arms arranged in an orthogonal polarization mode and a balunfor feeding the radiation arms. A cross-shaped hollow area is formed between the two pairs of radiation arms. According to the radiation unit, one pair of radiation arms is equivalent to a dual-frequency +45-degree polarization half-wave oscillator; the other pair of radiation arms is equivalent to a dual-frequency -45-degree polarization half-wave oscillator; and the dual-frequency dual-polarization radiation unit is integrally formed. The area of the arm surface of the high-frequency radiation arm is smaller than that of the arm surface of the low-frequency radiation arm. The distance between the side edge, back to the center of the cross-shaped hollow area, of the high-frequency radiation arm and the center of the cross-shaped hollow area is smaller than the distance between the side edge, back to the center of the cross-shaped hollow area, of the low-frequency radiation arm and the center of the cross-shaped hollow area. On one hand, the planar beam symmetry and the cross polarization ratio of the antenna can be well improved, and on the other hand, the distance between sub-arrays is relatively increased. The effect of improving the coupling degree between the sub-arrays is achieved, and the user experience effect is improved.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a dual-frequency dual-polarization antenna and a radiation unit. Background technique [0002] The operating frequency of the 5G network is higher than that of the traditional 4G network, and the base station antenna of the 5G network needs to meet the requirements of dual-band work at the same time. The development of the radiation unit for dual-band work has become a necessary means to achieve its goal. However, in order to meet the requirements of dual-frequency operation, the coupling between sub-arrays is poor in the case of the traditional dual-frequency dual-polarized antenna with the same volume size. Contents of the invention [0003] Based on this, it is necessary to overcome the defects of the prior art and provide a dual-frequency dual-polarization antenna and a radiation unit, which can satisfy the dual-frequency operating characteristics and improve t...

AI Technical Summary

Problems solved by technology

However, in order to meet the requirements of dual-band work, the traditional dual-band dual-polarization antenna has poor coupling between sub-arrays when the volume size remains the same.

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