A Microstrip MIMO Antenna with Enhanced Isolation for WiMAX Applications

Nguyễn Ngọc Lan, Nguyễn Thị Thu Hằng, Hồ Văn Cừu
2019 Research and Development on Information and Communication Technology  
In this paper, a multiple-input multipleoutput (MIMO) antenna with high isolation is designed using defected ground structure (DGS). The proposed antenna is constructed by two sets of four elements (2×2), which are designed at the central frequency of 3.5 GHz for Worldwide Interoperability for Microwave Access (WiMAX) applications. The antenna is fabricated on a FR4 substrate with an overall size of 144 × 99 × 1.6 mm. Thanks to DGS, the designed MIMO antenna achieves a high isolation of 30 dB
more » ... d a high radiation efficiency of over 90%. Besides, this MIMO antenna attains a 7.5 dBi gain. There is a good agreement between the simulated S-parameters and the measurement results.
doi:10.32913/mic-ict-research.v2019.n2.869 fatcat:hdg7ahie7ncm5dzoflpqpgr4xi