Date of Award


Document Type


Degree Name

Master of Science in Engineering (MSE)


Electrical and Computer Engineering

Committee Chair

Z. A. Pour

Committee Member

Tony Gatlin

Committee Member

Biswajit Ray


Phased array antennas., Antenna radiation patterns.


In this thesis, a novel displaced phase center antenna technique is introduced and demonstrated. A proof of concept study is performed using a three-element linear array, placed in the focal plane of a parabolic reflector antenna. Then, a seven-element circular focal plane phased array as the primary feed for a parabolic reflector antenna will be utilized and further investigated to realize a reconfigurable aperture antenna, capable of electronically displacing the antenna phase center location along any direction with no mechanical means. The proposed technique will be tested using both front-fed and offset parabolic reflector geometries. Results will show that, while the phase center of the parabolic reflector antenna is displaced along the surface of the reflector, the main beam of the secondary radiation pattern remains stationary in space, in the form of a broadside pattern along the optical axis of the parabolic reflector.



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