TY - JOUR
T1 - Dual Circularly Polarized Tri-Resonances Ultrawideband Metasurface Antenna for C-Band Satellite Communications
AU - Xing, Zijian
AU - Wang, Xiaoting
AU - Zhang, Jinping
AU - Yu, Qianan
AU - Li, Jianying
AU - Wang, Ling
AU - Sim, Chow Yen Desmond
N1 - Publisher Copyright:
© 2002-2011 IEEE.
PY - 2025
Y1 - 2025
N2 - A novel ultrawideband metasurface antenna with dual circular polarization is proposed in this letter. The high, low, and medium circular polarization (CP) mode frequencies of the antenna are generated through the radiation metamaterial patch, the 3/4 ring feed network, and the coupling between them, respectively. The characteristic modes of low and mid frequency exhibit a broad frequency coverage, ensuring that the antenna's entire operating band is continuous and broadband. The antenna is fed by a low dispersion annular microstrip cross slot coupling network with broadband approximate 90° phase difference. The dimensions of the proposed antenna are 0.73λ × 0.73λ × 0.066λ. The overlap impedance bandwidths in simulations and measurements are 81.01% of left-handed circular polarization (LHCP, 3.54 GHz to 8.36 GHz) and 81.92% of right-handed circular polarization (RHCP, 3.51 GHz to 8.38 GHz). The overlap axial ratio bandwidth (ARBW) is 64.74% (LHCP, 3.52 GHz to 6.89 GHz) and 62.97% (RHCP, 3.58 GHz to 6.87GHz), respectively. This broad AR bandwidth is sufficient to cover uplink and downlink transmission frequencies of C-band satellite communications.
AB - A novel ultrawideband metasurface antenna with dual circular polarization is proposed in this letter. The high, low, and medium circular polarization (CP) mode frequencies of the antenna are generated through the radiation metamaterial patch, the 3/4 ring feed network, and the coupling between them, respectively. The characteristic modes of low and mid frequency exhibit a broad frequency coverage, ensuring that the antenna's entire operating band is continuous and broadband. The antenna is fed by a low dispersion annular microstrip cross slot coupling network with broadband approximate 90° phase difference. The dimensions of the proposed antenna are 0.73λ × 0.73λ × 0.066λ. The overlap impedance bandwidths in simulations and measurements are 81.01% of left-handed circular polarization (LHCP, 3.54 GHz to 8.36 GHz) and 81.92% of right-handed circular polarization (RHCP, 3.51 GHz to 8.38 GHz). The overlap axial ratio bandwidth (ARBW) is 64.74% (LHCP, 3.52 GHz to 6.89 GHz) and 62.97% (RHCP, 3.58 GHz to 6.87GHz), respectively. This broad AR bandwidth is sufficient to cover uplink and downlink transmission frequencies of C-band satellite communications.
KW - Dual circular polarization
KW - metasurface (MS)
KW - ultrawideband
UR - https://www.scopus.com/pages/publications/86000805276
U2 - 10.1109/LAWP.2025.3548770
DO - 10.1109/LAWP.2025.3548770
M3 - 文章
AN - SCOPUS:86000805276
SN - 1536-1225
VL - 24
SP - 4252
EP - 4256
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
IS - 11
ER -