期刊
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
卷 20, 期 6, 页码 898-902出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2021.3066574
关键词
5G communication; compressed dipoles; dual-mode; high-order modes; sidelobe suppression; wideband antennas
资金
- Independent Innovation Fund of Tianjin University [2020XRY-0023]
A dual-mode compressed high-order-mode dipole loaded with bent stubs is presented for sidelobe suppression, achieving a decreased sidelobe level by 12 dB on average. The prototype antenna has gains higher than 4.4 dBi over the entire operating band and suppressed sidelobes of less than -10 dB within the desired frequency range.
A dual-mode compressed high-order-mode dipole loaded with bent stubs is presented for sidelobe suppression. When the high-order modes are introduced to achieve high gain, the sidelobes are generated due to the reverse currents along the dipole. To suppress the sidelobes, the bent stubs are used to impair the reverse currents. By bending the stubs, the sidelobe level (SLL) is decreased by 12 dB, on average. A prototype is fabricated and measured to validate the principles. The measurements show that the gains are higher than 4.4 dBi over the entire operating band of 3.26-4.075 GHz (22.2%). Within the desired n78-band (3.3-3.8 GHz), the measured radiation patterns are consistent with simulations, and the suppressed SLL is less than -10 dB.
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