Broadband dual-polarization radiation unit and antenna

Abstract

The invention discloses a broadband dual-polarization radiation unit and an antenna. The broadband dual-polarization radiation unit comprises a radiation arm group, a balance-imbalance converter, a feed sheet group, a coupling plastic member, a supporting plastic member and a parasitic sheet, wherein the radiation arm group includes two pairs of sub-radiation arm groups which are placed at +45 degrees and -45 degrees and are in 90-degree rotational symmetry relative to the center of the radiation unit, and each pair of the sub-radiation arm groups is composed of two sub-radiation arms which are diagonally arranged; the balance-imbalance converter is connected with and supports the radiation arm group to form a main body part of the radiation unit, and the overall height is about 1 / 4 of thespatial wavelength of the broadband dual-polarization radiation unit at a low frequency; the feed sheet group includes an upper feed sheet and a lower feed sheet and is fixed by the coupling plasticmember so as to realize non-direct connection between the feed sheet group and the sub-radiation arms; and the supporting plastic member and the parasitic sheet are arranged on the radiation arm group, and the supporting plastic member is fixed on the radiation arm group. The broadband dual-polarization radiation unit solves performance deterioration of the radiation unit after nested array arrangement in the prior art, and the assembly process is simplified at the same time.

Description

Technical field [0001] The present invention relates to the technical field of wireless communication base station antennas, in particular to a broadband dual-polarization radiation unit and an antenna. Background technique [0002] In recent years, mobile communication technology has developed rapidly. There are more and more occasions for communication systems of various formats to coexist. Because communication systems of various formats have different working frequency bands, and with the gradual promotion of mobile communication systems, The working frequency band of the communication system is further expanded, which makes the mobile communication system require a wider antenna frequency band. In addition, in order to save base station installation resources and reduce the cost of network construction, communication system solutions that integrate multiple standards have received more and more attention and are widely adopted. If GSM1800 and CDMA2000 are co-sited, the work...

AI Technical Summary

Problems solved by technology

Considering the complex boundary conditions of the nesting method, the performance indicators of the high-frequency radiation part deteriorate, and the assembly process of the whole machine is complicated and the consistency is poor

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