Antenna array based on passive decoupling technology

Abstract

The invention discloses an antenna array based on a passive decoupling technology. The antenna array comprises a reflector, a first array, a second array and a plurality of decoupling metal strips, wherein the first array, the second array and the decoupling metal strips are arranged on the reflector, the first array and the second array are parallelly and symmetrically arranged on the reflector,the first array comprises a plurality of parallel first radiation units, the second array comprises a plurality of parallel second radiation units, the number of the first radiation units is consistent with that of the second radiation units, the decoupling metal strips are positioned at a center line of the reflector, and parts of or all first radiation units are connected with parts of or all second radiation units through the decoupling metal strips. According to the antenna array, decoupling is achieved by the structure, so that mutual coupling effect on adjacent antennas is minimized, antenna array elements can be more compactly arranged, and miniaturization of multi-column side-by-side antennas for mobile communication is achieved.

Description

technical field [0001] The present invention relates to the technical field of antennas, in particular to an antenna array based on passive decoupling technology. Background technique [0002] According to Shannon's theorem, the channel capacity of wireless communication is proportional to the bandwidth and signal-to-noise ratio. At present, the interference caused by the overlapping of cellular sectors in mobile communication has become the main source of noise in wireless communication. In order to further increase the transmission rate, improving the consistency of the antenna pattern of the communication base station has become the simplest method chosen by the operator. From the perspective of manifestation, the inconsistency of the multi-frequency base station antenna pattern mainly manifests in the following situations: the horizontal half-power angle of the high-frequency band is inconsistent with that of the low-frequency band; the horizontal half-power angle of di...

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Problems solved by technology

However, this solution must introduce redundant units in a horizontal array, which will inevitably lead to an increase in the length of the antenna or the design of additional PCB passive components such as bridges and duplexers, and at the same time increase the difficulty of antenna shape design and production costs; for more For wide-band antennas, using this method to form an array may cause the wave width of the high-frequency part in the frequency band to be too narrow, resulting in failure

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