Low-profile dual-polarization low-frequency radiation unit, antenna array, antenna apparatus and antenna

Abstract

The invention discloses a low-profile dual-polarization low-frequency radiation unit. The low-profile dual-polarization low-frequency radiation unit comprises two groups of low-frequency feed baluns, four low-frequency radiation oscillator arms and a medium plate, wherein one end of each of the two groups of low-frequency feed baluns is vertically installed on a reflecting plate; the other end of each of the two groups of low-frequency feed baluns is connected with the four low-frequency radiation oscillator arms; the medium plate is installed on the reflecting plate and is close to the low-frequency radiation oscillator arms; and the medium plate is disposed between the reflecting plate and the low-frequency radiation oscillator arms. Compared to the prior art, the low-profile dual-polarization low-frequency radiation unit enables the distance between the low-frequency radiation oscillator arms and the reflecting plate to be shortened, i.e., reduces the height of the ration unit, accordingly, the stability design difficulty of a whole structure is reduced, and the low-profile dual-polarization low-frequency radiation unit can be more easily accepted by a user in need of an indoor antenna. The invention simultaneously discloses a low-profile multi-frequency range dual-polarization antenna array, antenna apparatus and antenna.

Description

technical field [0001] The invention relates to the technical field of mobile communication antennas, in particular to a low-profile dual-polarized low-frequency radiation unit, an antenna array, an antenna device and an antenna. Background technique [0002] Most existing base station antennas use half-wave oscillators or half-wave opposing oscillators when implementing dual-polarization schemes in the 698-960MHz frequency band. Since the operating frequency is as low as 698MHz, according to the special requirements of the half-wave oscillator, its height is about 0.25 wavelengths (about 107mm), resulting in a high height of the entire antenna. In the base station antenna system, especially in the new generation of active antenna system, too high antenna height will bring great difficulty to the stability design of the entire structure. In addition, the height of the conventional half-wave vibrator design is too high when applied to indoor antennas, which is difficult for ...

AI Technical Summary

Problems solved by technology

Since the operating frequency is as low as 698MHz, according to the special requirements of the half-wave oscillator, its height is about 0.25 wavelengths (about 107mm), resulting in a high height of the entire antenna

In the base station antenna system, especially in the new generation of active antenna system, the antenna height is too large will bring great difficulty to the stability design of the entire structure

In addition, the height of the conventional half-wave vibrator design is too high when applied to indoor antennas, which is difficult for customers to accept

Images