Vol. 117

Front:[PDF file] Back:[PDF file]
Latest Volume
All Volumes
All Issues
2022-01-02

Wideband Four-Port Compact Millimeter-Wave MIMO Antenna Configuration through Defected Ground Structure for Forthcoming 5G Handheld Devices

By Abdullah, Hamza Ahmad, MuhibUr Rahman, Muhammad Haris, and Muhammad Salman
Progress In Electromagnetics Research C, Vol. 117, 173-184, 2021
doi:10.2528/PIERC21111801

Abstract

We presented a miniaturized defected ground structure-based millimeter-wave (MMW) contemporary MIMO antenna for 5G smart applications devices. The proposed MIMO antenna offers many advantages including high gain, compactness, planar geometry, wide impedance bandwidth, and reduced mutual coupling effects performance. The top layer of the proposed four-port MIMO antenna design comprises 1x2 rectangular patch array structures, with each placed at the middle of a 20x20 mm2 substrate of material (RO4350B) having thickness of 0.76 mm and loss tangent of 0.0037. For miniaturization and better performance, both the ground layer and radiating patches are defected with slots of a rectangular shape while an E-shaped slot is placed at the center of the ground plane. The operating impedance bandwidth of the proposed antenna ranges from 26.4 to 30.9 GHz incorporating the dominant portion of the mm-wave band. The proposed MIMO antenna is also characterized by the fundamental MIMO performance metrics such as Envelope Correlation Coefficient (ECC) which is less than 0.12 for any two-element array that encounters the mandatory standard of <0.5, high Diversity gain (DG) reaching its ideal value of 10 as well as minimum isolation of -19 dB with a total efficiency of 85% at 28 GHz. These characteristics make the proposed compact four-port MIMO antenna one of the best candidates to be used in 5G portable devices.

Citation


Abdullah, Hamza Ahmad, MuhibUr Rahman, Muhammad Haris, and Muhammad Salman, "Wideband Four-Port Compact Millimeter-Wave MIMO Antenna Configuration through Defected Ground Structure for Forthcoming 5G Handheld Devices," Progress In Electromagnetics Research C, Vol. 117, 173-184, 2021.
doi:10.2528/PIERC21111801
http://jpier.org/PIERC/pier.php?paper=21111801

References