Abstract
A mathematical model is developed to determine the antenna phase centre and its uniqueness. The model is then used to investigate the phase centre location for the azimuth antenna of a microwave landing system (MLS) and to determine its movement due to beam scanning and various design or operational errors. It is shown that, for an ideal antenna, i.e. the error-free case, the phase centre coincides with the antenna's geometrical centre. However, any deviation from ideal conditions, due to design, fabrication or operational errors, phase shifter quantization and the scan angle algorithm, causes its nonuniqueness and movement from the antenna's geometrical centre. The method is also used to treat environmental effects, such as ground reflection an thermal expansion or contraction, on the location of the antenna phase centre.
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 callMore From: Canadian Journal of Electrical and Computer Engineering
Disclaimer: 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.
