Artificial medium cylindrical lens-based omni-directional multi-wave-beam antenna

Abstract

The invention provides an artificial medium cylindrical lens-based omni-directional multi-wave-beam antenna. The antenna is formed by high integration of multiple antenna units by taking an artificialmedium cylindrical lens as a carrier; the antenna comprises a cylindrical lens 1, antenna unit groups 2 and a metal bottom plate 3; the cylindrical lens 1 is prepared from an artificial medium material; the multi-wave-beam antenna comprises two same antenna unit groups 2; each antenna unit group 2 comprises multiple independent antenna units; the antenna units are fixed on the metal bottom plate3 to form an integrated body; the two antenna unit groups 2 are arranged uniformly in upper and lower lines along the semi-circumference surface of the cylindrical lens 1, and the two lines are staggered with an angle of 180 degrees; by virtue of the antenna, 360-degree full coverage can be realized in a horizontal plane; the measured drawing of each wave beam in the perpendicular direction is 2-3times of the width of the conventional tunable antenna, so that an electric tuning mechanism can be omitted, and an easily occurred phenomenon of "dark under tower" of the conventional antenna can beavoided effectively; and therefore, the omni-directional multi-wave-beam antenna is particularly suitable for intensive user and big data traffic service areas.

Description

technical field [0001] The present invention relates to the field of radio antennas, and more specifically, the present invention relates to a high-gain multi-beam antenna for a mobile communication base station, which can realize full coverage of a horizontal plane within a range of 360°. Background technique [0002] With the rapid expansion of market demand in wireless fields such as mobile communication 4G, 5G, MIMO, satellite communication, radar, and electronic warfare, new technical requirements are also put forward for antennas used as wireless entrances and exits. While meeting the requirements of high gain, low sidelobe, narrow beam, and wide beam coverage, it is also necessary to take into account the needs of scanning speed, cost, and environment. The most important thing is that the antenna must be able to carry a large information capacity without increasing its number and site. [0003] To achieve sector coverage in traditional wireless communication systems,...

AI Technical Summary

Problems solved by technology

The beam gain of the antenna is only 1dB, and the antenna can only generate high-frequency beams, and cannot achieve low-frequency coverage

In addition, the structure of the antenna is relatively complex, using a total of 30 element antennas, the structure is huge, the installation is complicated, and the production and installation costs are high

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