Multifrequency base station antenna and low frequency radiation units thereof

Abstract

The invention discloses a multifrequency base station antenna and low frequency radiation units thereof, and each of the low frequency radiation units includes at least one radiation arm and a feedingBalun supporting and feeding the radiation arms, each of the radiation arms includes a first end connected with the feeding Balun and a second end connected with the first end and away from the feeding Balun, the second end sinks to from an enclosing cavity lower than a radiation surface of the low frequency radiation unit, and the enclosing cavity is used for arranging high frequency radiation units. The radiation arms of the low frequency radiation unit sink to form the enclosing cavity used for placing the high frequency radiation units, and thus the cross section size of the multifrequency base station antenna can be greatly reduced on the basis of not influencing a radiation characteristic of the multifrequency base station antenna.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a multi-frequency base station antenna and a low-frequency radiation unit thereof. Background technique [0002] With the large-scale commercialization of the fourth-generation mobile communication system, communication networks of multiple standards and multiple frequency bands are operating simultaneously, and the space resources of mobile base stations are becoming increasingly tight. In some urban areas where the demand for communication services is high, antennas of various forms can be seen everywhere. In addition, because residents are worried that the "electromagnetic radiation" of base station antennas is too harmful to human health, the construction of a new generation of base station antenna networks is facing difficulties in selecting sites, building stations, and adding new antennas. The small-aperture multi-band ultra-broadband base station antenna can...

AI Technical Summary

Problems solved by technology

For example, the multi-frequency antenna array proposed by the patent application number CN103050788A nests the high-frequency vibrator into the low-frequency vibrator, making the boundary conditions very complicated. The high-frequency radiation characteristics are affected by the surrounding low-frequency radiation arms, and the radiation characteristics are not easy to achieve ideal state, it is easy to cause the problem of performance inconsistency

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