Low-frequency radiation unit and antenna array

Abstract

The invention discloses a low-frequency radiation unit and an antenna array. The low-frequency radiation unit comprises a feed device, a balun support device and a pair of mutually orthogonal half-wave vibrators, the radiation surfaces of the orthogonal half-wave vibrators are located on the same plane, each half-wave vibrator comprises two radiation arms, the inner side of each radiation arm is provided with a plurality of open-circuit branches, a matching resonator is arranged at the top end of the radiation arm, the balun supporting device comprises a feed transmission line, one end of the balun supporting device is connected with the feed device, the other end of the balun supporting device is connected with the orthogonal half-wave vibrator, and the orthogonal half-wave vibrator is electrically connected with the feed device through the feed transmission line. The radiator can have relatively high radiation bandwidth and filtering bandwidth, so that the influence of a low-frequency radiation unit on high-frequency radiation performance is effectively reduced, the performance of the antenna is guaranteed during nesting fusion array formation, and meanwhile, the electrical size of the antenna can be effectively reduced.

Description

technical field [0001] The present application relates to the field of antennas, in particular to a low-frequency radiation unit and an antenna array. Background technique [0002] With the development of wireless communication, 5G construction has reached the middle stage, and the golden frequency band 700MHz project has been launched. Base station antennas are developing in the direction of ultra-wideband, multi-band, multi-array, and miniaturization. Starting out, arrays of different frequency bands need to be nested and fused to form an array, so as to effectively reduce the size of the antenna and reduce the weight of the antenna. However, the nested fused array will cause mutual interference between different columns and different frequency bands, which will seriously affect the performance of the antenna. [0003] Therefore, how to provide a solution to the above technical problems is a problem that those skilled in the art need to solve at present. Contents of the ...

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Problems solved by technology

[0002] With the development of wireless communication, 5G construction has reached the middle stage, and the golden frequency band 700MHz project has been launched. Base station antennas are developing in the direction of ultra-wideband, multi-band, multi-array, and miniaturization. Starting out, it is necessary to nest and fuse arrays of different frequency bands to form an array, so as to effectively reduce the size of the antenna and reduce the weight of the antenna. However, the nested fusion array will cause mutual interference between different columns and different frequency bands, which will seriously affect the performance of the antenna.

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