期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 70, 期 10, 页码 9877-9881出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2022.3178803
关键词
Dual band; Metasurfaces; Polarization; Apertures; Metals; Antenna measurements; Antenna feeds; Dual band; dual-circularly polarization; electromagnetic bandgap structure; polarization-twisting metasurface antenna (PTMA)
资金
- China Postdoctoral Science Foundation [2021M693890]
- National Natural Science Foundation of China [41874158]
- Key Laboratory Project of Shaanxi Provincial Department of Education [20JS124]
A polarization-twisting metasurface antenna (PTMA) is proposed to generate dual-band dual-circularly polarized (CP) radiation in the Ku-band. By integrating a dual-linear-to-circular polarization converter (DLCPC) with a linear polarization conversion metasurface (LPCM), the PTMA is capable of realizing both left hand CP (LHCP) and right hand CP (RHCP) radiation.
We propose a polarization-twisting metasurface antenna (PTMA) to generate the dual-band dual-circularly polarized (CP) radiation by integrating a dual-linear-to-circular polarization converter (DLCPC) with a linear polarization conversion metasurface (LPCM) in the Ku-band. The DLCPC possesses the functionality of polarization selection and is capable of transforming the linearly polarized (LP) waves into right hand CP (RHCP) waves in low-frequency (LF) and left hand CP (LHCP) waves in high frequency (HF). Based on the DLCPC, the dual-band dual-CP PTMA is designed and fabricated, and then, the measured results indicate that the PTMA is capable of realizing the RHCP radiation in LF and the LHCP radiation in HF. In the meanwhile, the common bandwidths of -1.5 dB gains and 3 dB axial ratios are 12.25-12.95 and 14.00-14.55 GHz, respectively. Our design, by integrating the DLCPC and LPCM to construct the dual-band dual-CP PTMA, should, thus, pave the way for building up more efficient wireless communication systems with the requirement of different CPs as the receiver and the transmitter at downlink and uplink in the Ku-band.
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