Sub-6 GHz Band Massive MIMO Antenna System for Variable Deployment Scenarios in 5G Base Stations

2021 ◽  
Author(s):  
Darwin R ◽  
Sampath P
Keyword(s):  
Massive Mimo ◽  
Mimo System ◽  
Ground Plane ◽  
Antenna System ◽  
Base Stations ◽  
Base Layer ◽  
Mimo Antenna ◽  
System A ◽  
Length Width ◽  
Working Frequency

Abstract A compact massive MIMO antenna system with 1x4 (sector) subarray setup working at sub-6 GHz range for 5G base stations has been planned and broke down in different configurations(rectangular, triangular and hexagonal). The limit of a system can be expanded by more than 10 times whereas the energy efficiency can be expanded 100 times utilizing a Massive MIMO system. A limit of 5 sectors has been utilized with every sector containing 1x4 subarray components. Every sector comprises of three layers, in which 1x4 patches is situated on its top layer though it's taking care of organization and ground plane has been set in the base layer and the centre layer individually. The whole system can work in two modes, singular port activity andmassive MIMO exhibit activity with shaft guiding abilities. The deliberate data transmission of the framework is 140 MHz that covers the frequencies from 3.36 GHz to 3.50 GHz in sub-6 GHz band. The general component of a unit subarray regarding length, width and tallness was 280.5 x 56.1 x 2 mm3. The gain of an individual port is discovered to be 12.95 dBi and the general addition of a single panel with 5 sectors arranged in rectangular structure is 19.73 dBi. Mutual couplingamong all the ports has been kept not exactly - 16 dB. The working frequency of the radio antenna array system is picked in the scope of 3.3 GHz to 3.8 GHz as this band has been assigned and focused across the globe to empower 5G in Sub-6 GHz band.

scholarly journals Massive MIMO antenna system for 5G base stations with directive ports and switched beamsteering capabilities

2018 ◽  
Vol 12 (10) ◽  
pp. 1709-1718 ◽  
Author(s):  
Monjed A. Al‐Tarifi ◽  
Mohammad S. Sharawi ◽  
Atif Shamim
Keyword(s):  
Massive Mimo ◽  
Antenna System ◽  
Base Stations ◽  
Mimo Antenna

scholarly journals 4 × 4 MIMO Antenna System for Smart Eyewear in Wi-Fi 5G and Wi-Fi 6e Wireless Communication Applications

Electronics ◽  
2021 ◽  
Vol 10 (23) ◽  
pp. 2936
Author(s):  
Ming-An Chung ◽  
Cheng-Wei Hsiao ◽  
Chih-Wei Yang ◽  
Bing-Ruei Chuang
Keyword(s):  
Ground Plane ◽  
Multiple Input Multiple Output ◽  
Antenna System ◽  
Slot Antenna ◽  
Actual Measurement ◽  
Antenna Efficiency ◽  
Mimo Antenna ◽  
Measurement Results ◽  
Working Frequency ◽  
Peak Gain

This paper proposes a small-slot antenna system (50 mm × 9 mm × 2.7 mm) for 4 × 4 multiple-input multiple-output (MIMO) on smart glasses devices. The antenna is set on the plastic temple, and the inverted F antenna radiates through the slot in the ground plane of the sputtered copper layer outside the temple. Two symmetrical antennas and slots on the same temple and series capacitive elements enhance the isolation between the two antenna ports. When both temples are equipped with the proposed antennas, 4 × 4 MIMO transmission can be achieved. The antenna substrate is made of polycarbonate (PC), and its thickness is 2.7 mm εr=2.85, tanδ=0.0092. According to the actual measurement results, this antenna has two working frequency bands when the reflection coefficient is lower than −10dB, its working frequency bandwidth at 4.58–5.72 GHz and 6.38–7.0 GHz. The proposed antenna has a peak gain of 4.3 dBi and antenna efficiency of 85.69% at 5.14 GHz. In addition, it also can obtain a peak gain of 3.3 dBi and antenna efficiency of 82.78% at 6.8 GHz. The measurement results show that this antenna has good performance, allowing future smart eyewear devices to be applied to Wi-Fi 5G (5.18–5.85 GHz) and Wi-Fi 6e (5.925–7.125 GHz).

Design of a compact MIMO antenna system with reduced mutual coupling

2014 ◽  
Vol 8 (1) ◽  
pp. 117-124 ◽  
Author(s):  
Mohammed Younus Talha ◽  
Kamili Jagadeesh Babu ◽  
Rabah W. Aldhaheri
Keyword(s):  
Resonant Frequency ◽  
Mutual Coupling ◽  
Mimo System ◽  
Ground Plane ◽  
Multiple Input Multiple Output ◽  
Antenna System ◽  
Dual Band ◽  
Impedance Bandwidth ◽  
Mimo Antenna ◽  
Operating Band

A novel compact multiple-input–multiple-output (MIMO) antenna system operating from 5 to 7.3 GHz is proposed for wireless applications. It comprises of two similar antennas with microstrip feeding and radiating patches developed on a reduced ground plane. The developed antenna system resonates at a dual-band of 5.4 and 6.8 GHz frequencies, giving an impedance bandwidth of 38% (based on S11 < −10 dB). The unique structure of the proposed MIMO system gives a reduced mutual coupling of −27 dB at 5.4 GHz resonant frequency and −19 dB at 6.8 GHz resonant frequency and in the entire operating band the coupling is maintained well below −16 dB. The envelope correlation coefficient of the proposed MIMO system is calculated and is found to be less than 0.05 in the operating band. The measured and simulation results are found in good agreement.

scholarly journals A Compact Quad-Element UWB-MIMO Antenna System with Parasitic Decoupling Mechanism

2019 ◽  
Vol 9 (11) ◽  
pp. 2371 ◽  
Author(s):  
Fatima Amin ◽  
Rashid Saleem ◽  
Tayyab Shabbir ◽  
Sabih ur Rehman ◽  
Muhammad Bilal ◽  
...  
Keyword(s):  
Mutual Coupling ◽  
Mimo System ◽  
Ground Plane ◽  
Research Work ◽  
Spatial Diversity ◽  
Antenna System ◽  
Ultra Wideband ◽  
Personal Area Networks ◽  
Back Side ◽  
Mimo Antenna

This research work proposes a compact four-port multiple-input multiple-output (MIMO) antenna that operates in the whole license free ultra-wideband (UWB) spectrum of 3.1–10.6 GHz. Spatial diversity has been introduced by arranging these antennas in close proximity without developing a strong mutual coupling. Antenna elements are evolved from a conventional rectangular patch antenna whereas a customized decoupling structure is introduced on the back side of the substrate to achieve the desired isolation level. The parasitic decoupling structure consists of different features which are resonant at different frequencies offering a whole UWB coverage. In addition to the decoupling structure a dumbbell shaped stub has also been introduced to the partial ground plane to suppress the mutual coupling. The overall measured isolation among elements is more than 20 dB. Different MIMO performance parameters have also been investigated from the measured results. Whole MIMO system measures 0.41 λo × 0.44 λo at 3.1 GHz. The MIMO system is intended for high data rate and short-range communication devices used in wireless personal area networks.

Cuboidal quad-port UWB-MIMO antenna with WLAN rejection using spiral EBG structures

2021 ◽  
pp. 1-8
Author(s):  
Sumon Modak ◽  
Taimoor Khan
Keyword(s):  
Close Agreement ◽  
Ground Plane ◽  
Antenna System ◽  
Ultra Wideband ◽  
Electromagnetic Bandgap ◽  
Mimo Antenna ◽  
Simulated Performance ◽  
Notched Band ◽  
Multiple Input ◽  
Band Characteristic

Abstract This study presents a novel configuration of a cuboidal quad-port ultra-wideband multiple-input and multiple-output antenna with WLAN rejection characteristics. The designed antenna consists of four F-shaped elements backed by a partial ground plane. A 50 Ω microstrip line is used to feed the proposed structure. The geometry of the suggested antenna exhibits an overall size of 23 × 23 × 19 mm3, and the antenna produces an operational bandwidth of 7.6 GHz (3.1–10.7 GHz). The notched band characteristic at 5.4 GHz is accomplished by loading a pair of spiral electromagnetic bandgap structures over the ground plane. Besides this, other diversity features such as envelope correlation coefficient, and diversity gain are also evaluated. Furthermore, the proposed antenna system provides an isolation of −15 dB without using any decoupling structure. Therefore, to validate the reported design, a prototype is fabricated and characterized. The overall simulated performance is observed in very close agreement with it's measured counterpart.

A compact dual port UWB-MIMO/diversity antenna for indoor application

2017 ◽  
Vol 10 (3) ◽  
pp. 360-367 ◽  
Author(s):  
Sonika Priyadarsini Biswal ◽  
Sushrut Das
Keyword(s):  
Mimo System ◽  
Ground Plane ◽  
Multiple Input Multiple Output ◽  
Open Circuit ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Good Prospect ◽  
Mimo Antenna ◽  
Radiating Element ◽  
Input Multiple Output

A compact printed quadrant shaped monopole antenna is introduced in this paper as a good prospect for ultra wideband- multiple-input multiple-output (UWB-MIMO) system. The proposed MIMO antenna comprises two perpendicularly oriented monopoles to employ polarization diversity. An open circuit folded stub is extended from the ground plane of each radiating element to enhance the impedance bandwidth satisfying the UWB criteria. Two ‘L’ shaped slots are further etched on the radiator to provide good isolation performance between two radiators. The desirable radiator performances and diversity performances are ensured by simulation and/or measurement of the reflection coefficient, radiation pattern, realized peak gain, envelope correlation coefficient (ECC), diversity gain, mean effective gain (MEG) ratio and channel capacity loss (CCL). Results indicate that the proposed antenna exhibits 2.9–11 GHz 10 dB return loss bandwidth, mutual coupling <−20 dB, ECC < 0.003, MEG ratio ≈ 1, and CCL < 0.038 Bpsec/Hz, making it a good candidate for UWB and MIMO diversity application.

scholarly journals Mutual Coupling Reduction of DRA for MIMO Applications

2019 ◽  
Vol 8 (1) ◽  
pp. 75-81
Author(s):  
N. Al Shalaby ◽  
S. G. El-Sherbiny
Keyword(s):  
Mutual Coupling ◽  
Dielectric Material ◽  
Ground Plane ◽  
Multiple Input Multiple Output ◽  
Antenna System ◽  
Parasitic Element ◽  
Mimo Antenna ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Element Method

In this paper, A multiple input Multiple Output (MIMO) antenna using two Square Dielectric Resonators (SDRs) is introduced. The mutual coupling between the two SDRAs is reduced using two different methods; the first method is based on splitting a spiral slot in the ground plane, then filling the slot with dielectric material, "E.=2.2". The second method is based on inserting a copper parasitic element, having the same shape of the splitted Spiral, between the two SDRAs.  The effect of replacing the copper parasitic element with Carbon nanotubes (CNTs) parasitic element "SOC12 doped long-MWCNT BP" is also studied. The antenna system is designed to operate at 6 GHz. The analysis and simulations are carried out using finite element method (FEM). The defected ground plane method gives a maximum isolation of l8dB at element spacing of 30mm (0.6λo), whereas the parasitic element method gives a maximum isolation of 42.5dB at the same element spacing.

scholarly journals Optimal Low-Power Design of a Multicell Multiuser Massive MIMO System at 3.7 GHz for 5G Wireless Networks

2018 ◽  
Vol 2018 ◽  
pp. 1-17 ◽  
Author(s):  
Michel Matalatala ◽  
Margot Deruyck ◽  
Emmeric Tanghe ◽  
Luc Martens ◽  
Wout Joseph
Keyword(s):  
Low Power ◽  
Communication Networks ◽  
Massive Mimo ◽  
Mimo System ◽  
Low Power Design ◽  
Base Station ◽  
Base Stations ◽  
Reference Network ◽  
Power Requirement ◽  
Time Frequency

Massive MIMO techniques are expected to deliver significant performance gains for the future wireless communication networks by improving the spectral and the energy efficiencies. In this paper, we propose a method to optimize the positions, the coverage, and the energy consumption of the massive MIMO base stations within a suburban area in Ghent, Belgium, while meeting the low power requirements. The results reveal that massive MIMO provides better performances for the crowded scenario where users’ mobility is limited. With 256 antennas, a massive MIMO base station can simultaneously multiplex 18 users at the same time-frequency resource while consuming 8 times less power and providing 200 times more capacity than a 4G reference network for the same coverage. Moreover, a pilot reuse pattern of 3 is recommended in a multiuser multicell environment to obtain a good tradeoff between the high spectral efficiency and the low power requirement.

scholarly journals Multiband MIMO Antenna System with Parasitic Elements for WLAN and WiMAX Application

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Reza Karimian ◽  
Hamed Tadayon
Keyword(s):  
Return Loss ◽  
Ground Plane ◽  
Antenna System ◽  
Slot Antenna ◽  
Antenna Structure ◽  
Mimo Antenna ◽  
Measurement Result ◽  
Array Configuration ◽  
Element Array ◽  
Microstrip Feed

A new microstrip slot antenna with parasitic elements has been presented in this paper. The proposed antenna is composed of a microstrip feed line, a ground plane on which some simple slots are etched, and parasitic elements. Simulation results show that the antenna structure allows for the independent adjustment of each frequency. A two-element array configuration of this antenna for MIMO application is investigated as well. For comparison between simulation and measurement result both single and array configurations have been fabricated. The measurement result exhibits good radiation performance in terms of return loss, low mutual coupling, and compactness.

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