Circular Polarized Re-Configurable Patch Antenna for Futuristic Wireless Communication

A novel, compact circularly polarized elliptical patch antenna array for 5G applications is presented. The design is printed on commercially available substrate Rogers RT/Duroid 5880 with 1.575 mm thickness. A single port microstrip feed is used to excite the structure. A ring is added at the center as a power divider and to make a circular arrangement of array elements. The 45° rotated slot is made at the right ellipse. Consequently, the electric field is divided into x and y components which provide circular polarization. The four vias are added in left upper ellipse to increase the gain. A Pin diode is used for switching purpose. The proposed structure can operate between (30.6-47.6) GHz with a gain of 9.84 dB. The design is simulated in Computer Simulation Technology Microwave Studio (CST MWS).