Electronically scanned phased array antenna design and implementation

Abstract

A multi-purpose phased array antenna is designed and implemented using Commercial Off The Shelf (COTS) components, operating at 2.3 GHz on the frequency range from 2.25 GHz to 2.35 GHz. Four elements rectangular microstrip linear antenna array with Wilkinson power divider and phase shifters was implemented and measured. Controlling of phase shifters to achieve the desired scanning angle is accomplished by programming a microcontroller (Arduino) to change the input voltages of the phase shifters according to pre-calculated equations. The radiation patterns of selected steering angles has been measured and the achieved results were good as the pre-calculated ones.