A broadband dual-polarized antenna array unit

Abstract

The application discloses a broadband dual-polarized antenna array unit, which comprises an antenna dielectric material plate from top to bottom, a metal back plate, a metal mounting back plate and a Wilkinson power divider, a supporting structure is located between the antenna dielectric material plate and the metal mounting back plate, a feeding structure is located between the antenna dielectric material plate and the metal mounting back plate and is connected with a broadband radio frequency connector on the metal mounting back plate through the metal back plate, the broadband radio frequency connector is connected with the Wilkinson power divider through the metal mounting back plate, and a radiation patch and a coupling patch are located on the antenna dielectric material plate. By adopting a circular ring coupling patch and a multi-point orthogonal microstrip staggered feeding on the basis of a symmetrical radiation patch, the broadband working of the antenna is realized, and the purpose of simultaneously improving the cross-polarization isolation in the wide spatial range in the working frequency band and the isolation between the feeding ports of the two kinds of polarization antenna units in the array is achieved.

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