TY - GEN
T1 - Fast and Accurate Near-Field Calibration Method for Phased Array Antennas
AU - Jin, Xin
AU - Wang, Shuai
AU - Lin, Yujie
AU - Bu, Xiangyuan
AU - An, Jianping
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/11/30
Y1 - 2018/11/30
N2 - The near-field calibration can be performed indoors, avoiding to be affected by the environment and security concerns which makes it has important research value. Nevertheless, the application is limited by the calibration efficiency and precision. A near-field calibration method based on code division multiple-Access (CDMA) scheme is proposed in this paper to decrease calibration time and improve the calibration precision. In the proposed method, the calibrating signal associated with each antenna is distinguished by a unique spread-spectrum code sequence instead of the continuous wave (CW). The relationship between calibration accuracy and signal to noise ratio (SNR) is obtained by derivation, and the simulation results verify the correctness of theoretical derivation results. If the SNR is higher than 15dB, the calibration accuracy of the amplitude/phase can reach 0.1 decibel (dB) and 1 degree (deg), respectively. The proposed method can be good applied to the large-scale phased array antennas calibration.
AB - The near-field calibration can be performed indoors, avoiding to be affected by the environment and security concerns which makes it has important research value. Nevertheless, the application is limited by the calibration efficiency and precision. A near-field calibration method based on code division multiple-Access (CDMA) scheme is proposed in this paper to decrease calibration time and improve the calibration precision. In the proposed method, the calibrating signal associated with each antenna is distinguished by a unique spread-spectrum code sequence instead of the continuous wave (CW). The relationship between calibration accuracy and signal to noise ratio (SNR) is obtained by derivation, and the simulation results verify the correctness of theoretical derivation results. If the SNR is higher than 15dB, the calibration accuracy of the amplitude/phase can reach 0.1 decibel (dB) and 1 degree (deg), respectively. The proposed method can be good applied to the large-scale phased array antennas calibration.
KW - code division multiple-Access(CDMA)
KW - near-field calibration
KW - phased array antennas
KW - spread-spectrum communication
UR - http://www.scopus.com/inward/record.url?scp=85059950689&partnerID=8YFLogxK
U2 - 10.1109/WCSP.2018.8555608
DO - 10.1109/WCSP.2018.8555608
M3 - Conference contribution
AN - SCOPUS:85059950689
T3 - 2018 10th International Conference on Wireless Communications and Signal Processing, WCSP 2018
BT - 2018 10th International Conference on Wireless Communications and Signal Processing, WCSP 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Conference on Wireless Communications and Signal Processing, WCSP 2018
Y2 - 18 October 2018 through 20 October 2018
ER -