COMPACT SELF-DIPLEXING MIMO ANTENNA WITH IMPROVED ISOLATION CHARACTERISTICS

Abstract: The design and analysis of a small multiple-input multiple-output (MIMO) antenna for wireless and Internet of Things applications operating in the 2.4 GHz to 2.7 GHz frequency range are presented in this research.The suggested antenna is created using a straightforward planar construction and examined utilizing several electromagnetic simulation tools, in contrast to traditional designs that depend on substrate integrated waveguide (SIW) structures and CST-based calculations Within the designated ISM band, the antenna is intended to provide dual-port operation with enhanced isolation and effective radiation characteristics. The design guarantees lower mutual coupling between antenna parts without requiring intricate decoupling structures by utilizing suitable slotting and efficient feed procedures. Throughout the operational frequency range, the suggested setup provides appropriate gain, steady radiation patterns, and good impedance matching. To verify the antenna behavior, performance metrics such S-parameters, return loss, isolation, and radiation characteristics are examined.The findings show that the antenna provides dependable performance appropriate for short-range wireless communication systems, such as Bluetooth, Wi-Fi, and Internet of Things devices.

Keywords: Compact Antenna , Self-Diplexing Antenna , MIMO Antenna , High Isolation , IoT Connectivity , Dual- Band Antenna, Microstrip Patch Antenna , Defected Ground Structure (DGS) , Mutual Coupling Reduction , HFSS Simulation ,Wireless Communication , Return Loss (S11) , Envelope Correlation Coefficient (ECC) , Gain Enhancement , 2.4 GHz / 5 GHz Bands.