Radiation unit positioning clamp and low-frequency radiation unit

Abstract

The invention discloses a radiation unit positioning clamp for connecting a first radiation arm and a second radiation arm in each dipole. The radiation unit positioning clamp comprises a base; the base is provided with a first inverted fastener and a third inverted fastener for being clamped and fixed on the first radiation arm; the base is also provided with a second inverted fastener and a fourth inverted fastener for being clamped and fixed on the second radiation arm; the base is also provided with a boss; the boss is provided with positioning grooves correspondingly matched with a first clamping part and a second clamping part; and the boss is clamped and fixed on the first radiation arm and the second radiation arm through match between the positioning grooves and the first clamping part and the second clamping part. By adopting the radiation unit positioning clamp provided by the embodiment of the invention, shape and position offset of the radiation arm can be effectively corrected from multiple directions, and reliable fixing and deformation correction roles are played for the radiation unit.

Description

technical field [0001] The invention relates to the technical field of mobile communication base station antennas, in particular to a radiation unit positioning clip and a low-frequency radiation unit thereof. Background technique [0002] At present, 800 / 900MHz radiating units are used in a large number of arrays inside dual-polarized base station antennas, and there are radiating arms in the structure of the radiating unit, and its cantilever-like structure is usually prone to angle inclination during die-casting and transportation. Unevenness and obvious deformation; the structural deformation of the radiation unit will obviously affect the intermodulation index of the antenna. If the radiation unit has structural deformation, the cross-polarization ratio of the entire antenna will deteriorate, and excessive deformation will even further affect the antenna intermodulation, standing wave ratio and other indicators. Therefore, for the deformed radiating unit, it is usually...

AI Technical Summary

Problems solved by technology

[0003] The common method of plastic positioning clips is the open U-shaped clip type. Usually, the positioning clips are inserted in the gap between the two radiation arms in the vertical direction, and the plastic sheets at both ends of the U-shaped opening of the positioning clips respectively block two The upper and lower edges of the radiation arm are used to correct the deformation of the radiation arm. However, due to the open design of this kind of positioning clip, its structural strength and rigidity are insufficient. When the plastic positioning clip is subjected to large stress, it will be deformed by force. The deformation of the radiation arm cannot be corrected, which seriously affects the performance indicators such as the cross-polarization ratio of the antenna

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