Design and simulation of RFID adaptive antenna array usign microstrip technology for object detection system

This paper presents the design and simulation of RFID adaptive antenna array for object detection system or living things in movement in a very limited space. The proposed antenna array is composed of four identical elements which are connected in parallel with a microstrip line in the form ≪ T ≫ having a power port adapted to 50 Ω. This array is made using microstrip technology around a resonance frequency of 2.45 GHz for he can make improvements at the level of the quality of communication and many other benefits. Design, simulation and optimization processes are carried out with the aid of the Agilent Advanced Design System (ADS) electromagnetic simulator that uses the full-wave Method of Moment (MoM) numerical technique. The simulation results show that the proposed antenna array presents the better performance in terms of return loss, voltage standing wave ratio, input impedance, radiation pattern as well as electric and magnetic field distribution.