High-intermodulation AFU antenna

Abstract

The invention relates to an AFU antenna. The antenna comprises an antenna device, a cavity filter and a flange assembly, the antenna device comprises a PCB printed with a feed network, the flange assembly comprises a flange ring and a probe fixed in the flange ring through a dielectric insulator, the cavity filter is connected with the PCB through the flange ring, and the probe penetrates throughthe PCB to be connected with the radio frequency input end of the feed network in a welded mode. According to the invention, a scheme of synthesizing and assembling the cavity filter and the antenna is adopted, signal data transmission is achieved by probe, the problem that a traditional base station antenna and a filter are connected through a jumper wire and a connector is solved, a traditionalsignal transmission cable is omitted, and the size and occupied space of the antenna are remarkably reduced; and meanwhile, high intermodulation of the antenna device, the filter and the AFU is guaranteed, and the requirements of the FDD communication transmission technology are completely met. The connection between the cavity filter and the antenna device is realized by adopting the flange ring,good contact between the cavity filter and the antenna device is ensured, and the assembly structure is high in stability and reliability.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to an AFU antenna with high intermodulation. Background technique [0002] At present, 5G communication technology is in the ascendant, and 5G antenna is an important part of it, so the technical research and development of 5G antenna is particularly important. [0003] Chinese patent applications CN110233357A, CN110380170A etc. disclose a kind of AFU antenna structure, and it is massive MIMO (massive array antenna), adopts the dielectric filter array to mount on the calibration plate, this AFU antenna is suitable for TDD (Time Division Duplexing, Time Division Duplexing) communication transmission technology has low power and low intermodulation requirements, and is not suitable for FDD (Frequency Division Duplexing, Frequency Division Duplexing) communication transmission technology. [0004] Therefore, it is necessary to provide an AFU antenna suitable for FDD ...

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Problems solved by technology

[0003] Chinese patent applications CN110233357A, CN110380170A etc. disclose a kind of AFU antenna structure, and it is massive MIMO (massive array antenna), adopts the dielectric filter array to mount on the calibration plate, this AFU antenna is suitable for TDD (Time Division Duplexing, Time Division Duplex) communication transmission technology, low power, low intermodulation requirements, not applicable to FDD (Frequency Division Duplexing, frequency division duplex) communication transmission technology

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