Base station antenna without isolation strip

Abstract

The invention discloses a base station antenna without an isolation strip. The antenna comprises a substrate, a dielectric oscillator array and a feed network, the dielectric oscillator array is arranged on the front surface of the substrate, and the feed network is arranged on the front surface or the back surface of the substrate; and the dielectric oscillator array comprises a plurality of dielectric oscillators which are arranged in a straight line, the feed network is provided with a plurality of feed line tail ends which respectively extend to corresponding dielectric oscillators, and the feed line tail ends are loaded with capacitive structures which are used for constraining the extension direction of an electric field. By loading the directional capacitive structure capable of constraining the electric field of the dielectric oscillator at the feeder line tail ends, the isolation degree of the dielectric oscillator is improved, and the isolation degree between different dielectric oscillators is improved; and therefore, the number of parts is reduced, the manufacturing process flow of the antenna is simplified and the production cost is greatly reduced under the conditionof not arranging an isolation strip and meeting the isolation requirement of the antenna.

Description

technical field [0001] The invention relates to the technical field of communication base station antennas, in particular to a base station antenna without isolation strips. Background technique [0002] Antennas are the key equipment of modern wireless communication systems, and are widely used in wireless communication base stations and various communication terminals. In the 5G era, the importance of antennas is particularly prominent. In many cases, key indicators such as antenna gain and waveform determine the coverage strength and area of ​​the entire base station system. [0003] Since 5G antennas are basically integrated into the AAU (Active Antenna Processing Unit), the space of the antennas is limited and the arrangement is tight, resulting in a sharp deterioration in the isolation between sub-arrays in the antenna array. The deterioration of isolation will lead to the decline of some antenna performance, such as active standing wave, polarization diversity, etc....

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Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a base station antenna without spacer strips, which aims to solve the problem that the base station antennas in the prior art use spacer strips to improve antenna isolation, there are many parts, and the structure and production process are complicated. , a technical problem with high production costs

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