Bidirectional beam forming leaky-wave antenna and power divider loaded antenna assembly

Abstract

The invention discloses a bidirectional beamforming leaky-wave antenna and a power divider loaded antenna assembly. SIW LWA units with symmetrical double beams are adopted for arraying, the length of the gap of the aperture surface of each unit is designed to meet binomial distribution, and the gap widths of the two units are different, and a substrate integrated waveguide side wall opening with a stop band self-suppression function is designed; the larger the local inductance needs to be reduced, the larger the opening of the side wall of the corresponding substrate is; the Z-shaped anti-phase unequal power divider is used for providing two paths of excitation sources of which the phase difference is 180 degrees and the power ratio is 1: 5. According to the leaky-wave antenna provided by the invention, bilateral beamforming of cosecant square distribution of a radiation pattern in a one-dimensional direction is realized, and the current situation that the conventional SIW LWA only performs cosecant square beamforming on a single side is broken; the technical problem that the open stop band and the sub-directional diagrams cannot be superposed in the same phase is solved.

Description

technical field

[0001] The invention relates to the technical field of wireless communication, in particular to a bidirectional beamforming leaky wave antenna and an antenna assembly loaded with a power divider. Background technique

[0002] Today, mobile communication has been extended to various complex environments to meet people's requirements for full coverage of communication, especially in long, straight and confined spaces such as tunnels and mines. The quality and reliability of wireless communication in a confined space mainly depends on the uniformity of radio wave coverage in the confined space, and the uniformity of radio wave coverage depends on the performance of the antenna installed in the confined space. Currently, antennas used in confined spaces are Yagi antennas, helical antennas, and patch antennas, and their radiation patterns usually have wide beamwidths. When this type of antenna is installed in a confined space with a hard boundary, a large amount ...

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