METASURFACE-BASED DUAL-BAND POLARIZED TWO-BEAM BASE STATION ANTENNA
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United States of America
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Issued Date -
Dec 5, 2024
app pub date -
Oct 29, 2020
filing date -
Oct 29, 2020
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Abstract
A metasurface-based dual-band polarized two-beam base station antenna includes a radiation metasurface antenna layer, a metal floor etched with a plurality of crossed slots, and a four-port feed network layer; the radiation metasurface antenna layer is positioned on an uppermost layer, the four-port feed network layer is positioned on a lowermost layer, the metal floor is arranged between the radiation metasurface antenna layer and the four-port feed network layer, and the plurality of crossed slots are etched on the metal floor to achieve a dual-band polarized radiation characteristic; and the plurality of crossed slots are sequentially excited, and energy of the four-port feed network layer is coupled to the radiation metasurface antenna layer via the crossed slots, so as to realize dual-band polarized beams.
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