Abstract: This paper proposes a dual-band shared-aperture base station antenna based on filtering structure. This antenna array consists of a low-band (LB) antenna and a $2 \times 2$ high-band antenna ...

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Abstract: This paper proposes a coplanar small frequency-ratio dual-band base-station antenna array. The array consists of a layered lower-band (LB) crisscrossed dipole antenna located in the center ...