Metamaterial phased array antenna with wide-angle beam scanning
A phased array antenna, wide-angle scanning technology, used in radar detection and mobile satellite communications, can solve problems such as scanning blind spots, and achieve good cross-polarization characteristics or circular polarization axis ratio characteristics, good active impedance Match and improve the effect of radiation pattern
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[0025] Below, combine Figure 1 to Figure 3 The present invention is further described.
[0026] A wide-angle scanning metamaterial phased array antenna includes a plurality of phased array antenna units, and the array form of the phased array antenna units is flexible, and can be either a square array or a triangular array. Each phased array antenna unit includes a metal waveguide 4 and a loading medium 5 filled in the metal waveguide, the lower port of the metal waveguide 4 is the feeding port 6, and the upper port of the metal waveguide 4 is the radiation port. A metamaterial cladding 2 is erected above the radiation port of the array antenna unit. The metamaterial coating 2 is composed of a radio frequency board 7 and a plurality of subwavelength metal patches 8 , and the subwavelength metal patches 8 are printed on the upper surface of the radio frequency board 7 . The array period of the phased array antenna unit is an integer multiple of the subwavelength metal patch ...
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