Multi-beam Planar Patch Lens Antenna

Abstract

The invention discloses a multi-beam plane patch lens antenna, which relates to a lens antenna, is implemented in a manner of a plane patch array antenna, inherits the characteristics of easiness in processing and shaping, relatively low cost and the like of a patch antenna, can effectively implement space focusing of electromagnetic waves, and can realize a good multi-beam function by feed source offset-focus. The multi-beam plane patch lens antenna is provided with a medium mounting ring, a support bracket, a horn feed source and a plane patch array lens, wherein the plane patch array lens and the support bracket are connected with each other by the medium mounting ring; the horn feed source is arranged above the center of the plane patch array lens and fixed on the support bracket; and the medium mounting ring, the plane patch array lens and the horn feed source are connected with one another.

Description

technical field [0001] The present invention relates to a lens antenna, in particular to a planar patch array antenna that realizes the function of the lens antenna, and realizes a multi-beam multi-beam planar patch lens antenna by defocusing a feed source. Background technique [0002] A multi-beam antenna is an antenna that generates multiple sharp beams that can be combined into one or several shaped beams to cover a specific airspace. Multi-beam antennas are widely used at present, and its realization methods include lens type, reflector type, phased array type and hybrid form with phased array as reflector or lens feed. [0003] The multi-beam lens antenna refers to the use of lenses to gather the energy radiated by the feed source to form a sharp beam to realize the spatial focusing of electromagnetic waves. When multiple feed sources are set near the focal point of the lens, multiple beams with different directions are formed accordingly. The key to the implementatio...

AI Technical Summary

Problems solved by technology

[0005] Chinese patent 201210051097.X discloses a point-focused flat-panel lens antenna. Although this structure uses a metamaterial flat plate to replace the traditional lens curved surface, its essence is still to obtain a plane wavefront on the radiation aperture by changing the refractive index distribution through a multi-layer dielectric structure. , the processing process is more complicated, the cost is expensive, and the interface reflection is serious

The advantage of this structure is that it can flexibly control the number and shape of the beams, and can control the beams for fast scanning, but its feed network is complex and expensive

Images