A multi-port frequency-division electronically adjustable antenna

Abstract

The invention discloses a multi-port frequency-division tunable antenna which comprises a reflection plate and a feed network module, wherein the feed network module comprises a phase shifter module, a frequency divider array and a power divider, the frequency divider array is connected with the phase shifter module, the power divider is connected with the phase shifter module, the back side of the reflection plate is connected with the frequency divider array, the front side of the reflection plate is provided with a wideband dipole array through a non-conductive mode, and the wideband dipole array comprises dipole units. In the antenna, through the design of the phase shifter module and the power divider matched with the frequency divider array, a signal of a wideband radiator or the antenna is divided into two paths or even multiple paths of independent sub signals so as to form two pairs or even multiple pairs of antennas with different frequency bands; on the condition of no increase of the antenna volume, at least one pair of antenna is equivalently added; and on the premise of ensuring performance, approximate half of the antenna volume is reduced, and space resources of a base station are greatly saved.

Description

technical field [0001] The invention relates to the technical field of wireless communication equipment, in particular to a multi-port frequency-division electric adjustable antenna. Background technique [0002] Mobile communication technology is developing rapidly. At present, the fourth-generation mobile communication has occupied a dominant position, but the traditional second-generation and third-generation mobile communication will coexist in a certain period of time, which has led to operators' demand for antennas. With the development of multi-system and multi-port, at the same time, site resources are tight, and the requirements for the miniaturization of antennas have become more intense. A designer designed an antenna system, specifically referring to the patent No. 201310165973.6 "An Ultra-Wideband Multi-Channel Offset Shift Frequency Division Antenna System", which mentioned that the low frequency signal is reflected by the frequency division secondary reflector...

AI Technical Summary

Problems solved by technology

The vibrator of the base station antenna is fixed to the reflector by metal screws. This fixing method is very sensitive to the contact resistance between the vibrator and the reflector, and the contact resistance will change according to the loosening of the metal screws, resulting in PIM instability. , and the base station antenna works outdoors, due to the humidity of the air, oxides will be produced between the vibrator and the reflector, resulting in PIM deterioration

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