期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 70, 期 7, 页码 6024-6029出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2022.3161461
关键词
Antenna arrays; Reflector antennas; Antenna radiation patterns; Reflection; Dipole antennas; Antennas; Couplings; Base station antenna; decoupling; partially reflective surface (PRS); shared-aperture antenna
资金
- Key Program of Marine Economy Development (Six Marine Industries) Special Foundation of Department of Natural Resources of Guangdong Province [GDNRC[2020]009]
A new decoupling concept for dual-band shared-aperture base station antenna arrays is proposed in this paper. By loading arrow-shaped decoupling structures in the hollowed regions of the low-band loop dipole arms, the high-band antennas' coupled wave can be cancelled. The designed antenna array achieves both cross-band and in-band decoupling abilities without the need for an extra decoupling layer.
A new decoupling concept for dual-band shared-aperture base station antenna arrays is proposed. By loading arrow-shaped decoupling structures in the hollowed regions of the low-band (LB) loop dipole arms, the LB antenna can yield partial reflection to the high-band (HB) antennas, canceling the HB-coupled wave. A dual-band base station antenna array is designed, fabricated, and measured based on this decoupling concept. With decoupling, the HB radiation patterns are restored. The copolarized in-band couplings between the HB antennas are reduced by about 9 dB, reaching >26.9 dB. The proposed antenna array possesses both cross-band and in-band decoupling abilities, without extra decoupling layer.
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