Design, Analysis and Implementation of wide-band antenna for IBFD Applications

Abstract

This research work is conducted to design and analyze a novel antenna for In band full duplex communication. A metamaterial-based microstrip patch antenna is designed for wideband operation in IBFD systems. The design incorporates electromagnetic band-gap structures for improved isolation and bandwidth enhancement. Detailed mathematical modeling and full-wave simulation techniques are employed to optimize the antenna's performance. Designed antenna in the 4.9 GHz to 6.4 GHz range, with a focus on achieving high isolation (over 40 dB).Peak isolation is 55 dB and increased up to 67 dB with rat race coupler. Grid slotted patch antenna and thick substrate reduces the surface wave coupling and enhances the isolation. T structure feeds also enhances the DC isolation due to gap between the structure and radiating element. The simulation results show excellent isolation and impedance matching across the target frequency band