Lens antenna based on MEMS array

Abstract

The invention discloses a lens antenna based on a MEMS array. The lens antenna comprises antenna array units. Each antenna array unit is mounted at an angle with the horizontal ground, and multiple antenna array units are arranged into a concave lens array and a convex lens array. The MEMS antenna array units are arranged in the form of lenses, wherein the convex lens antenna array units do not need to rotate and the radiation range of the antenna can be expanded; the concave lens antenna array units converge the generated signals at one point and then transmit them so as to enhance the transmission intensity and realize point-to-point communication; meanwhile, no mechanical rotation is needed, the antenna units are mounted at a certain angle and the radiation surface of the antenna unitshas a larger coverage by the modulated torsion so that the scanning rotation of the beams is realized by the mechanical radar relying on the conventional mechanical rotation can be avoided and the influence of slow reflection speed, low update speed and poor resolution of the mechanical scanning target can be improved.

Description

technical field [0001] The invention relates to the field of communication antennas, in particular to a MEMS-based array lens antenna. Background technique [0002] Traditional array radars usually use mechanical scanning or electronic scanning, that is, phased array radar. The mechanical scanning radar realizes the beam scanning by rotating the radar antenna. Due to the influence of the mechanical rotation, the reaction speed is slow, the target update rate is low, the resolution is poor, the versatility is weak, the electronic countermeasures are poor, the volume is large, and the power consumption High and expensive. Although the electric scanning radar, that is, the phased array radar, flexibly controls the beam pointing by controlling the feeding method of the antenna array elements, its beam pointing is flexible, and it can realize fast scanning without inertia, with high data rate, resolution, versatility and The ability of electronic countermeasures is strong, but ...

AI Technical Summary

Problems solved by technology

[0003] The electronic scanning radar antenna is based on a phase-controllable array antenna. In addition to the antenna oscillator, each antenna unit also has necessary components such as a phase shifter. Different oscillators can be fed into the Currents of different phases radiate beams with different directions in space; traditional array radars usually use mechanical scanning or electronic scanning, that is, phased array radars, and mechanical scanning radars realize beam scanning by rotating the radar antenna. Affected by mechanical rotation, it has slow response speed, low target update rate, poor resolution, weak versatility, poor electronic countermeasures, large volume, high power consumption, and expensive price. Radar is to flexibly control the beam pointing by controlling the feeding method of the antenna array elements. Its beam pointing is flexible, and it can realize fast scanning without inertia. Controlled array radar is expensive, consumes a lot of power, has a large volume, and requires a lot of cooling

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