Low Cost, Dual Circularly Polarized 2-bit Phased Array Antenna at X-band

A low cost, dual circularly polarized (CP) 2-bit antenna working at 10 GHz is reported in this work. The antenna element utilizes a square-ring patch as radiator. By selecting the feeding direction of the T-shaped coupling microstrip line and the position of perturbation corner, the 2-bit phase of 0...

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Veröffentlicht in:IEEE transactions on antennas and propagation 2023-03, Vol.71 (3), p.1-1
Hauptverfasser: Yin, Lu, Yang, Peng, Zeng, Qianwei, Zhang, Peng, Dong, Tao, Hu, Jun, Nie, Zaiping
Format: Artikel
Sprache:eng
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Zusammenfassung:A low cost, dual circularly polarized (CP) 2-bit antenna working at 10 GHz is reported in this work. The antenna element utilizes a square-ring patch as radiator. By selecting the feeding direction of the T-shaped coupling microstrip line and the position of perturbation corner, the 2-bit phase of 0°, 90°, 180°, 270°, and the CP reconfigurability can be realized. An 8-element linear array is used to verify the beam scanning performance. By controlling the 'ON' or 'OFF' of the p-i-n diodes, the prototype array can steer the main beam from 0° to 40°. Within these steering beams, simulated and measured results have a good agreement, which verifies the functions of the antenna.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2022.3233425