Dual-polarization radiation apparatus and antenna and base station

Abstract

The invention provides a dual-polarization radiation apparatus. The dual-polarization radiation apparatus comprises a metal reflective plate, an insulating dielectric and at least one dual-polarization vibrator, wherein the insulating dielectric and the dual-polarization vibrator are positioned on the same side of the metal reflective plate; each dual-polarization vibrator comprises a plurality of radiation arms; the insulating dielectric is long-strip-shaped, and the insulating dielectric and the radiation arms are all arranged above the metal reflective plate; and the distance between the insulating dielectric and the metal reflective plate is less than that between the radiation arms and the metal reflective plate. By virtue of the dual-polarization radiation apparatus disclosed by the invention, the resonance length and balun height of the radiation arms of the dual-polarization vibrator can be improved equivalently, so as to realize small-cross-section and low-profile design of the dual-polarization radiation apparatus. Correspondingly, the invention also provides an antenna, wherein the antenna adopts the dual-polarization radiation apparatus, so that the antenna is small in size and convenient to install. In addition, the invention also provides a base station adopting the antenna.

Description

technical field [0001] The invention relates to the technical field of mobile communication antennas, in particular to a dual-polarization radiation device, an antenna using the dual-polarization radiation device and a base station using the antenna. Background technique [0002] With the increase of mobile communication network standards and the coexistence of multiple communication systems, co-site and co-site system antennas have gradually become the primary choice for operators to build networks. It optimizes resource allocation, saves site and antenna resources, and reduces Reduce the difficulty of property coordination and reduce investment costs. With the acceleration of the construction of the fourth-generation mobile communication network, various operators began to look for ultra-high Broadband antennas; at the same time, with the limitation of station building space, the demand for miniaturization has become the development trend of antennas, and the demand for m...

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Problems solved by technology

[0003] However, with the widening of the frequency band, the size of the antenna also increases accordingly, especially the increase of the height of the antenna, because the design of wide frequency band and multi-frequency often leads to the increase of the overall height of the antenna

Generally speaking, the overall height of the antenna can be reduced by reducing the height of the antenna radiation unit, but the antenna design principle requires that the effective radiation height of the radiation unit is a quarter of the wavelength corresponding to the center frequency point of the working frequency band to achieve optimal radiation Therefore, it is difficult to reduce the height of the radiation unit when designing a broadband radiation unit, resulting in a larger overall size of the antenna, which is not conducive to the miniaturization of the antenna, resulting in extremely inconvenient installation

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