TY - GEN
T1 - A low complexity calibration method for space-borne phased array antennas
AU - Wang, Shuai
AU - Dai, Jibo
AU - Lin, Yujie
AU - Bu, Xiangyuan
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/7/5
Y1 - 2016/7/5
N2 - The number of array elements significantly influences the computational complexity of space-borne phased array antenna systems. When the satellite is on-orbit, the performances of space-borne phased array antennas will be easily influenced by the environment and devices aging. Therefore, the space-borne antennas need to be regularly calibrated after satellite is launched. However, the complexity of calibration system increases in direct ratio to the radio frequency (RF) chain number of phased array antenna system. To solve the problem, a low complexity calibration method is proposed, whose system complexity is irrelevant to the number of array elements and calibration time is short. This method is especially suitable for large-scale space-borne phased array antennas. Simulation and experimental results of relative amplitude/phase inaccuracy probability under different SNR illustrate that when the value of SNR is higher than 16dB, the measurement accuracy of relative power (amplitude) and phase can reach ±0.1dB and ±1, respectively. The simulation and experiment results also provide a significant basis to the link budget of the space-borne phased array antenna systems.
AB - The number of array elements significantly influences the computational complexity of space-borne phased array antenna systems. When the satellite is on-orbit, the performances of space-borne phased array antennas will be easily influenced by the environment and devices aging. Therefore, the space-borne antennas need to be regularly calibrated after satellite is launched. However, the complexity of calibration system increases in direct ratio to the radio frequency (RF) chain number of phased array antenna system. To solve the problem, a low complexity calibration method is proposed, whose system complexity is irrelevant to the number of array elements and calibration time is short. This method is especially suitable for large-scale space-borne phased array antennas. Simulation and experimental results of relative amplitude/phase inaccuracy probability under different SNR illustrate that when the value of SNR is higher than 16dB, the measurement accuracy of relative power (amplitude) and phase can reach ±0.1dB and ±1, respectively. The simulation and experiment results also provide a significant basis to the link budget of the space-borne phased array antenna systems.
KW - Antenna calibration
KW - Computational complexity.
KW - Parallel calibration
KW - Phased array transmitting antennas
UR - http://www.scopus.com/inward/record.url?scp=84979779438&partnerID=8YFLogxK
U2 - 10.1109/VTCSpring.2016.7504078
DO - 10.1109/VTCSpring.2016.7504078
M3 - Conference contribution
AN - SCOPUS:84979779438
T3 - IEEE Vehicular Technology Conference
BT - 2016 IEEE 83rd Vehicular Technology Conference, VTC Spring 2016 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 83rd IEEE Vehicular Technology Conference, VTC Spring 2016
Y2 - 15 May 2016 through 18 May 2016
ER -