Phased-array antenna self-calibration method and device and phased-array antenna

• Main Authors: TANG QIANLONG, ZHANG CHENGJUN, DAI YING, LUO FAYING, WANG JINXIAN, LUO XUAN, GUO FANYU
• Format: Patent
• Language: Chinese; English
• Published: 27.11.2020
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

The invention provides a phased-array antenna self-calibration method and device and a phased-array antenna. The method comprises the steps of: when a calibration command is obtained, controlling theradio frequency signal input end to input a preset radio frequency transmitting signal to the transmitting antenna unit, and obtaining a signal actual gain and a signal theoretical gain, wherein the actual signal gain is the actual difference between the transmitting intensity and the receiving intensity, and the theoretical signal gain is the theoretical difference between the signal intensity ofthe radio frequency receiving signal and the signal intensity of the radio frequency transmitting signal; and determining the difference between the signal theoretical gain and the signal actual gainas calibration data of the unit to be calibrated, and calibrating the unit to be calibrated according to the calibration data. Therefore, the problems that a professional darkroom environment, professional test software and pr