Wideband, High-Gain, and Compact Four-Port MIMO Antenna for Future 5G Devices Operating over Ka-Band Spectrum

Abstract

In this article, the compact, ultra-wideband and high-gain MIMO antenna is presented for future 5G devices operating over 28 GHz and 38 GHz. The presented antenna is designed over substrate material Roger RT/Duroid 6002 with a thickness of 1.52 mm. The suggested design has dimensions of 15 mm × 10 mm and consists of stubs with loaded rectangular patch. The various stubs are loaded to antenna to improve impedance bandwidth and obtain ultra-wideband. The resultant antenna operates over a broadband of 26.5–43.7 GHz, with a peak value of gain >8 dBi. A four-port MIMO configuration is achieved to present the proposed antenna for future high data rate devices. The MIMO antenna offers isolation <−30 dB with ECC of <0.0001. The antenna offers good results in terms of gain, radiation efficiency, envelop correlation coefficient (ECC), mean effective gain (MEG), diversity gain (DG), channel capacity loss (CCL), and isolation. The antenna hardware prototype is fabricated to validate the performance of the suggested design of the antenna achieved from software tools, and good correlation between measured and simulated results is observed. Moreover, the proposed work performance is also differentiated with literature work, which verifies that the suggested work is a potential applicant for future 5G compact devices operating over wideband and high gain.

MIMO Dielectric Resonator Antennas for 5G Applications: A Review

“…A similar design with two ports consisting of two arrays each with four DRAs, achieving a gain of 9 dBi, was proposed in [26]. In [27], polarization diversity is utilized to reduce the mutual coupling in a four-port wideband MIMO antenna for 5G mm-wave applications where the impedance bandwidth ranges between 26.5 GHz to 43.7 GHz and the maximum gain is greater than 8 dBi.…”

A 28 GHz Highly Linear Up-Conversion Mixer for 5G Cellular Communications

“…Recently, millimeter-wave (mm-wave) transceivers have been intensively researched for multi-Gb/s data transfer with low-latency and high reliability [1][2][3][4][5][6][7][8]. For fifth-generation (5G) cellular communications, n260 (37~40 GHz) and n257 (26.5~29.5 GHz) mm-wave bands are allocated for 5G applications [9][10][11]. Transceiver systems [1][2][3][4][5][6][7][8] have successfully demonstrated 5G cellular communications using mm-wave bands.…”

Mutual Coupling Reduction in Antenna Arrays Using Artificial Intelligence Approach and Inverse Neural Network Surrogates

“…Another type of structures that have been widely used to reduce MC between the antenna cells, especially in the MIMO structures, are resonators [ 32 , 33 ]. Resonators have been widely used in the structures of microwave devices to improve the functionality of the components [ 34 , 35 , 36 ].…”