Isolation Improvement of Parasitic Element-Loaded Dual-Band MIMO Antenna for Mm-Wave Applications

Musa Hussain; Wahaj Abbas Awan; Esraa Musa Ali; Mohammed S Alzaidi; Mohammad Alsharef; Dalia H Elkamchouchi; Abdullah Alzahrani; Mohamed Fathy Abo Sree

doi:10.3390/mi13111918

Isolation Improvement of Parasitic Element-Loaded Dual-Band MIMO Antenna for Mm-Wave Applications

Micromachines (Basel). 2022 Nov 6;13(11):1918. doi: 10.3390/mi13111918.

Authors

Musa Hussain¹, Wahaj Abbas Awan², Esraa Musa Ali³, Mohammed S Alzaidi⁴, Mohammad Alsharef⁴, Dalia H Elkamchouchi⁵, Abdullah Alzahrani⁴, Mohamed Fathy Abo Sree⁶

Affiliations

¹ Department of Electrical Engineering, Bahria University Islamabad Campus, Islamabad 44000, Pakistan.
² Department of Information and Communication Engineering, Chungbuk National University, Cheongju 28644, Korea.
³ Faculty of Aviation Sciences, Amman Arab University, Amman 11953, Jordan.
⁴ Department of Electrical Engineering, College of Engineering Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia.
⁵ Department of Information Technology, College of Computer and Information Sciences, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia.
⁶ Department of Electronics and Communications Engineering, Arab Academy for Science, Technology and Maritime Transport, Cairo 11865, Egypt.

Abstract

A dual-band, compact, high-gain, simple geometry, wideband antenna for 5G millimeter-wave applications at 28 and 38 GHz is proposed in this paper. Initially, an antenna operating over dual bands of 28 and 38 GHz was designed. Later, a four-port Multiple Input Multiple Output (MIMO) antenna was developed for the same dual-band applications for high data rates, low latency, and improved capacity for 5G communication devices. To bring down mutual coupling between antenna elements, a parasitic element of simple geometry was loaded between the MIMO elements. After the insertion of the parasitic element, the isolation of the antenna improved by 25 dB. The suggested creation was designed using a Rogers/Duroid RT-5870 laminate with a thickness of 0.79 mm. The single element proposed has an overall small size of 13 mm × 15 mm, while the MIMO configuration of the proposed work has a miniaturized size of 28 mm × 28 mm. The parasitic element-loaded MIMO antenna offers a high gain of 9.5 and 11.5 dB at resonance frequencies of 28 GHz and 38 GHz, respectively. Various MIMO parameters were also examined, and the results generated by the EM tool CST Studio Suite® and hardware prototype are presented. The parasitic element-loaded MIMO antenna offers an Envelop Correlation Coefficient (ECC) < 0.001 and Channel Capacity Loss (CCL) < 0.01 bps/Hz, which are quite good values. Moreover, a comparison with existing work in the literature is given to show the superiority of the MIMO antenna. The suggested MIMO antenna provides good results and is regarded as a solid candidate for future 5G applications according to the comparison with the state of the art, results, and discussion.

Keywords: 28 GHz; 5G; MIMO antenna; compact electronics; isolation improvement.

Grants and funding

This work is supported by Princess Nourah bint Abdulrahman University Researchers Supporting Project number (PNURSP2022R238), Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia.