Broadband Dual-Polarized Antenna Using Metasurface for Full-Duplex Applications
Broadband Dual-Polarized Antenna Using Metasurface for Full-Duplex Applications
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DOI：
10.1109/lawp.2020.3047231
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发表时间：
2021-02
影响因子：
4.2
通讯作者：
S. Ta;N. Nguyen-Trong;Van Cuong Nguyen;Khac Kiem Nguyen;Chien Dao-Ngoc
中科院分区：
文献类型：
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作者：
S. Ta;N. Nguyen-Trong;Van Cuong Nguyen;Khac Kiem Nguyen;Chien Dao-Ngoc
In this letter, a broadband dual-polarized metasurface-based antenna is proposed for in-band full-duplex applications. The design concept exploits the wideband and low-profile features of a metasurface, as well as its structural symmetry to implement the differential-fed scheme for high isolation. An antenna design operating at 3.5 GHz is optimized, fabricated, and tested. The prototype with dimensions of 0.97$\lambda _{\text{min}}$ × 0.97$\lambda _{\text{min}}$ × 0.078$\lambda _{\text{min}}$ ($\lambda _{\text{min}}$ is the free-space wavelength referring to the lowest operational frequency) achieves a 10 dB return loss bandwidth of 28.4% (2.93–3.90 GHz) and an interport isolation of $>$43 dB. The far-field measurements indicate that the antenna exhibits broadside radiation with a realized gain of $>$8.0 dBi and low cross-polarization level of ${30 dB within the wide operational bandwidth.
