A Compact Planar Four-port MIMO Antenna for 28/38 GHz Millimeter-wave 5G Applications

Tadesse, Abdulaziz Dessalew; Acharya, Om Prakash; Sahu, Sasmita

doi:10.7716/aem.v11i3.1947

Cited by 12 publications

(9 citation statements)

References 27 publications

(38 reference statements)

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“…The antenna array is a system of N elementary electric vibrators arranged with a step d; the position where the first (closest to one of the ends) an element characterized by coordinates (a, 0, l); distance l satisfies the following conditions: and According to [10,11], the normalized complex radiation pattern of the array has the form (1) where in is the complex current amplitude of the n-th antenna element, n=1,…, N, (…”

Section: Mathematical Model and Calculation Methodsmentioning

confidence: 99%

“…-are the space-energy coefficients of the electromagnetic interaction of the n-th and p-th antenna elements [11], (5) -is an expression for calculating the power of the field emitted (received) by a hypothetical isotropic antenna, according to the level at which the power of the array field changes from the radiation patterns (1).…”

Section: Mathematical Model and Calculation Methodsmentioning

confidence: 99%

“…hip antenna arrays, the dimensions of elements that do not exceed the wavelength of the operating range, are used in radio-electronic complexes on unmanned aerial vehicles. According to [1,2], due to the possibility of matching antenna elements with distribution (feeding) lines in a wide frequency band, due to the absence of sign alternating reactive components of input impedances and significant radiation resistance [3,4], arrays of this type are used:…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

General Approaches to Solving Problems of Analysis and Synthesis of Directional Properties of Antenna Arrays

Islamov

Humbataliyev

2022

AEM

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The work carried out the calculation and synthesis of antenna arrays used in radio-electronic complexes on unmanned aerial vehicles. The analytical model is designed to find asymptotic estimates of the polarization components of the electric field of the grating in the far zone of the carrier surface; the results obtained with its use are the initial data for constructing a technique for the numerical solution of a boundary value problem for a grating on a carrier surface in the CST MWS electrodynamic simulation environment. The synthesis of gratings with the maximum achievable coefficient of directional action is carried out with the control of radiation patterns at a given set of angles. A two-mirror antenna system has been calculated. It is shown that with an increase in the number of re-reflections taken into account, the convergence of the result for the calculated characteristics of the antenna is observed. To test the proposed method, the same antenna was calculated using the integral equation method. The comparison showed a high degree of agreement between the results obtained by two different methods. The results of the simulation based on a software algorithm designed to quantify the input matching at the input of a multichannel frequency-scanning antenna array power divider are presented. It was found that when performing wide-angle scanning in a relative frequency band of more than a few percent, the disadvantage of the known method for eliminating the normal effect is a sharp deterioration in matching in the lower and upper frequencies of the operating range. A new method is proposed based on an automated iterative process of optimizing the divider geometry, which makes it possible to obtain an acceptable match over the entire operating frequency band. The feasibility of switching from a serial power divider construction scheme to a series-parallel scheme is analyzed for wide-angle scanning in a relative frequency band of about 5%.

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Section: Mathematical Model and Calculation Methodsmentioning

confidence: 99%

Section: Mathematical Model and Calculation Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

General Approaches to Solving Problems of Analysis and Synthesis of Directional Properties of Antenna Arrays

Islamov

Humbataliyev

2022

AEM

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“…A 14 mm × 14 mm planar four-port microstrip line-fed MIMO antenna is introduced in [110]. The antenna operates at 28 GHz/38 GHz, possible 5G millimeter-wave frequencies.…”

Section: Metamaterial/metasurface Structuresmentioning

confidence: 99%

“…FIGURE 14. Fabricated metamaterial inspired antennas, (a) [109], (b)[110], (c)[112], (d)[113], (e)[114], (f)[115].…”

mentioning

confidence: 99%

Millimeter Wave Antennas: A State-of-the-Art Survey of Recent Developments, Principles, and Applications

Aggarwal,

Roy,

Kumar

2024

PIER B

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The increasing volumes of data generated by social networking, cloud computing, e-commerce, and online video broadcasting necessitate the implementation of higher data rates. As the current 4G network encounters congestion and potentially struggles to accommodate the substantial data demand, there is a growing interest in millimeter wave (mmWave) technology. The 30-300 GHz mmWave spectrum is characterized by its broad bandwidth and low latency; it is having many applications in communication domains, also includes 5G cellular. Despite its atmospheric attenuation and non-line-of-sight (NLOS) propagation, the majority of nations have begun to implement mmWave 5G in the band of 28/38 GHz as a result of its reduced path loss exponent, minimal signal spread, and decreased atmospheric attenuation. While the patch antenna (single-element) is a compact and easily transportable choice for mmWave applications, its radiation efficiency, gain, and bandwidth are all subpar. Array antennas have effectively addressed these limitations by exhibiting significant enhancements in bandwidth, gain, and radiation efficiency. It is still limited in the maximum data rates it can accommodate. The rate of data can be increased by a factor of one thousand using Multiple-Input-Multiple-Output (MIMO) technology, which is enabled by geographical diversity and multiplexing techniques. As a result, the comprehension of structures of MIMO antennas operating at mmWave is imperative for the continued enhancement of performance. In comparing the efficacy of these designs, bandwidth, isolation, efficiency, gain, and radiation pattern are considered. In this paper, the most recent planar MIMO antenna designs, which are categorized as defected ground structures, Slot/Patch/Stub, MIMO Antenna Array, Dielectric Resonator Antenna, and Meta-Surface/Metamaterial Structures, are described. This paper also addresses the effects that slots, partial ground, and decoupling structures have on levels of isolation, bandwidth, and impedance matching. A comprehensive analysis of the design considerations and subsequent advancements is also provided in this paper.

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Dual-Band (28/38 GHz) Compact MIMO Antenna System for Millimeter-Wave Applications

Elsharkawy,

Hussein,

Farahat

2023

J Infrared Milli Terahz Waves

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The present work proposes a novel design of a dual-band-printed antenna for operation at the millimeter-wave frequencies 28 and 38 GHz that are utilized for the modern and future generations of mobile communications. The antenna is composed of two radiating elements. The first element is the main patch that is fed through a microstrip line with inset feed, and the second element is a parasitic element that is fed through capacitive coupling with the main patch. The design parameters of the proposed antenna are optimized through a complete parametric study to give excellent impedance matching at 28 GHz over the band 27.7–28.3 GHz and at 38 GHz over the band 37.7–38.3 GHz. The surface current distributions at the two operational frequencies are investigated. The designed antenna is used to construct a four-port efficient multi–input–multi–output (MIMO) system. The MIMO system performance is investigated regarding the envelope correlation coefficient (ECC), diversity gain (DG), and the channel capacity loss (CCL) showing very good performance. The single-element antenna and the MIMO are fabricated and experimentally evaluated showing excellent impedance matching over the lower and higher frequency bands, which come in agreement with the simulation results. It is shown that the antenna produces maximum gain of 7.4 and 8.1 dBi at 28 and 38 GHz, respectively. The average radiation efficiencies of the proposed antenna are 88% and 88.8% over the lower and higher frequency bands, respectively. In addition, the coupling coefficients between the MIMO antenna systems are measured experimentally showing very low coupling values resulting in an efficient MIMO system that is suitable for future millimeter-wave (mm-wave) applications.

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A Compact Planar Four-port MIMO Antenna for 28/38 GHz Millimeter-wave 5G Applications

Cited by 12 publications

References 27 publications

General Approaches to Solving Problems of Analysis and Synthesis of Directional Properties of Antenna Arrays

General Approaches to Solving Problems of Analysis and Synthesis of Directional Properties of Antenna Arrays

Millimeter Wave Antennas: A State-of-the-Art Survey of Recent Developments, Principles, and Applications

Dual-Band (28/38 GHz) Compact MIMO Antenna System for Millimeter-Wave Applications

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