Abstract
Caused by the degradation of active amplifier, the absolute time delay drift of phased array antenna is produced. In order to meet the requirement of precise ranging for navigation system, absolute time delay of phased array antenna need to be calibrated. Using group delay theory, combining Mid-field calculation technology, a calibration method of absolute time delay for phased array antenna based on time delay self-calibration channel is proposed. Analysis results indicate that the same effect on self-calibration channel and phased array antenna by time delay drift of active RF component. The absolute time delay of phased array antenna can be calibrated by time delay of self-calibration channel. The calculation and the measured results show that the proposed method is feasible and efficient.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
