Wide-beam broadband dual-polarized antenna

Abstract

The invention belongs to the technical field of antennas and discloses a wide-beam broadband dual-polarized antenna. The wide-beam broadband dual-polarized antenna comprises two dipoles and a floor. The dipoles are combined in a cross-crossing manner, and are axially parallel to the ground. The outer sides of the two arms of each dipole are inclined downwards, so that an umbrella-shaped structure is formed, wherein the tail end of the umbrella-shaped structure is bent downwards. According to the invention, a direction pattern superposition effect can be generated through improving the shapes of dipoles and introducing parasitic conductors. Therefore, the E-plane half-power beam width and the low-elevation-angle gain of the antenna are improved. Within a working frequency range with the relative bandwidth being 25%, the E-plane half-power beam width of the above wide-beam broadband dual-polarized antenna is increased by 30% compared with a traditional dipole antenna without a parasitic patch.

Description

technical field [0001] The invention belongs to the technical field of antennas, in particular to a wide-beam broadband dual-polarization antenna. Background technique [0002] With the continuous upgrading of contemporary communication needs, broadband and multi-polarization have become popular directions for modern radio. More and more antenna scholars have a high research interest in new broadband dual-polarized antennas. A dual-polarized antenna can transmit or receive two orthogonally polarized electromagnetic waves. In the same frequency band, the antenna can transmit or receive two signals at the same time. One pair of antennas can realize the function of two antennas, which can reduce the antenna cost and installation space; at the same time, the use of orthogonal polarization for the transceiver antenna can reduce the mutual coupling effect between the transceiver antennas and improve the communication quality; when the transceiver antennas work at the same time, i...

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Problems solved by technology

[0003] To sum up, the existing problems in the existing technology are: according to the principle of pattern product, the scanning range of the phased array antenna depends on the beam width of the array elements and the array arrangement, and the narrow half-power beam width of the antenna array elements will lead to The reduction of the scanning gain affects the scanning range of the array beam, and the relative bandwidth of the traditional dipole radiating element is generally about 5%, and the half-power beam width is about 70°, which cannot meet the wide scanning angle phased antenna array element. Half Power Beamwidth Requirements

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