Ultra-wideband dual-polarized radiation unit and antenna

Abstract

The invention discloses an ultra-wideband dual-polarized radiation unit. The antenna comprises a radiating element, a metal ring and a feed element. The metal ring is annularly arranged at the periphery of the radiating element. The radiating element comprises a first dipole and a second dipole which are arranged in a crossed manner. The first dipole and the second dipole respectively comprise tworadiation arms which are arranged diagonally. The feed element comprises a first transmission line and a second transmission line which are electrically isolated. The first transmission line is coupled with the first dipole, and the second transmission line is coupled with the second dipole. According to the invention, the standing-wave ratio and the directional diagram of the radiating element are improved. The bandwidth and the gain of the radiating element are increased. The ultra-wideband design is realized. The radiating element is rotationally and symmetrically arranged around the central position of the radiating element by 90 degrees, so that the structure is compact. The dislocation problem of the antenna in the batch production and assembly process can be avoided. The batch production efficiency is improved. In addition, the invention also discloses an ultra-wideband dual-polarized antenna.

Description

technical field [0001] The invention relates to the technical field of antenna design, in particular to an ultra-wideband dual-polarization radiation unit and an antenna. Background technique [0002] The antenna is a key device for signal transmission and signal reception in the communication system, and its radiation performance and reception performance will directly affect the performance of the entire communication system. With the rapid development of communication technology, it is required to further increase the capacity of the communication system, and the base station antenna is also developing in the direction of broadband, multi-frequency, miniaturization and low cost. Due to the coexistence of multiple communication standards today, the site selection of base station antennas is becoming more and more difficult. Therefore, the layout of the radiation unit of the base station antenna is required to be more compact and smaller. At the same time, the radiation uni...

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Problems solved by technology

[0003] In order to solve the current coexistence of multiple communication standards, at this stage, it is usually achieved by designing a broadband antenna radiating unit or placing multiple frequency band radiating units on one antenna to achieve the broadband characteristics of the antenna, thereby reducing the design cost; but at the same time There are disadvantages such as large volume, heavy weight and high profile of the antenna

Because microstrip antennas have the advantages of low profile, planarization, low cost, and easy processing, microstrip antennas are often designed in the prior art to solve the problems of large antenna volume and high profile, but microstrip antennas also have narrow bandwidth and low gain. Disadvantages such as low and poor cross polarization

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