A high intermodulation afu antenna

Abstract

The invention relates to an AFU antenna, which includes an antenna device, a cavity filter and a flange assembly. The antenna device includes a PCB board printed with a feed network, and the flange assembly includes a flange ring and is fixed to the flange ring through a dielectric insulator. The probe inside, the cavity filter is connected to the PCB board through the flange ring, and the probe is welded to the RF input end of the feed network through the PCB board. The invention adopts the solution of synthesizing and assembling the cavity filter and the antenna, realizes the signal data transmission through the probe, solves the problem that the traditional base station antenna and the filter are connected through jumpers and joints, and saves the traditional signal transmission cable, which not only significantly The size and space occupied by the antenna can be greatly reduced, and at the same time, the high intermodulation performance of the antenna device, filter and AFU can be guaranteed, which fully meets the requirements of FDD communication transmission technology. The flange ring is used to realize the connection between the cavity filter and the antenna device, ensuring good contact between the cavity filter and the antenna device, and the assembly structure has high 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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