Dual-Band MIMO Circular Patch Microstrip Antenna (CPMA) with Low Mutual Coupling for 5G Communication System

Authors Indra Surjati1 , Syah Alam1 , Lydia Sari1 , Yuli Kurnia Ningsih1 , Agatha Elishabet1 , Salsanabila Mariestiara Putri1 , Zahriladha Zakaria2 , Teguh Firmansyah3

1Departement of Electrical Engineering, Universitas Trisakti, West Jakarta, Indonesia

2Faculty of Electronics and Computer Engineering, Universiti Teknikal Malaysia Melaka (UTeM), Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia

3Departement of Electrical Engineering, Universitas Sultan Ageng Tirtayasa, Banten, Indonesia

Е-mail syah.alam@trisakti.ac.id
Issue Volume 16, Year 2024, Number 2
Dates Received 03 December 2023; revised manuscript received 14 April 2024; published online 29 April 2024
Citation Indra Surjati, Syah Alam, et al., J. Nano- Electron. Phys. 16 No 2, 02009 (2024)
DOI https://doi.org/10.21272/jnep.16(2).02009
PACS Number(s) 84.40.Ba
Keywords Dual-band, Circular patch, Microstrip antenna, MIMO (7) , 5G (23) .

This paper proposes a MIMO circular patch microstrip antenna (CPMA) operating at resonant frequencies of 3.5 GHz and 6 GHz for 5G communication systems. The proposed antenna is designed using RO-5880 substrate with a dielectric constant (εr) of 2.2, a thickness (h) of 1.58 mm and a loss tan (tanδ) of 0.0009. The dual band characteristic is obtained by placing the slot in the center of the CPMA while the inset feeder is used to control the reflection coefficient. Furthermore, mutual coupling reduction is obtained by controlling the distance between the antennas when configured in MIMO. Based on the simulation results, the proposed antenna produces excellent performance with reflection coefficient ≤ – 10 dB and mutual coupling (MC) ≤ – 20 dB at resonant frequencies of 3.5 GHz and 6 GHz. This research is very useful and can be recommended as a receiving antenna for 5G communication system.

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