DESIGNING AND COMPARISON OF FOUR PORT ANTENNA USING PLANE GROUND AND SLOTTED GROUND STRUCTURE

Microstrip patch antenna is basically a low profile antenna used where space is the prime issue. Antenna plays a significant role in the wireless communication. In electronic equipments, an antenna can be work as a transmitter or receiver or it can work as both. Now days, a variety of antennas have been investigated and each antenna has its own importance and applications. A Four-port compact microstrip antenna, with and without slotting in ground structure is presented here to improve the isolation. The proposed antenna is constructed using FR4 substrate. After simulation with CST software the performance of the proposed antenna is investigated and compared to both the structures. An improvement of 2 dB in coupling loss (S₄₁) and minor improvement in other parameter is found. The various result like S-parameter, gain, radiation pattern, and ECC is calculated and compared for plane ground and slotted ground.