Compact SIW Fed Dual-Port Single Element Annular Slot MIMO Antenna for 5G mmWave Applications

This article presented a millimeter wave antenna which operated at 38 GHz for 5G mobile base station. The MIMO (Multiple Input Multiple Output) antenna consisted of 1x10 linear array configurations. The proposed antenna’s size was 88 x 98 mm^2 and printed on 1.575 mm-thick Rogers Duroid 5880 subsrate with dielectric constant of ε_r= 2.2 and loss tangent (tanδ) of 0.0009. The antenna array covered along the azimuth plane to provide the coverage to the users in omnidirection. The simulated results showed that the single element antenna had the reflection coefficient (S11) of -59 dB, less than -10 dB in the frequency range of 35.5 - 39.6 GHz. More than 4.1 GHz of impedance bandwidth was obtained. The gain of the antenna linear array was 17.8 dBi while the suppression of the side lobes was -2.7 dB. It showed a high array gain throughout the impedance bandwidth with overall of VSWR were below 1.0646. It designed using CST microwave studio.

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A dual-band microstrip annular slot-based mimo antenna system

Microwave and Optical Technology Letters ◽

10.1002/mop.28855 ◽

2014 ◽

Vol 57 (2) ◽

pp. 360-364 ◽

Cited By ~ 12

Author(s):

Muhammad Umar Khan ◽

Mohammad S. Sharawi

Keyword(s):

Antenna System ◽

Dual Band ◽

Mimo Antenna ◽

Annular Slot

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Annular Slot-Based Miniaturized Frequency-Agile MIMO Antenna System

IEEE Antennas and Wireless Propagation Letters ◽

10.1109/lawp.2017.2726058 ◽

2017 ◽

Vol 16 ◽

pp. 2489-2492 ◽

Cited By ~ 22

Author(s):

Rifaqat Hussain ◽

Asim Ghalib ◽

Mohammad S. Sharawi

Keyword(s):

Antenna System ◽

Mimo Antenna ◽

Annular Slot ◽

Frequency Agile

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Eight Element Side Edged Framed MIMO Antenna Array for Future 5G Smart Phones

Micromachines ◽

10.3390/mi11110956 ◽

2020 ◽

Vol 11 (11) ◽

pp. 956 ◽

Cited By ~ 1

Author(s):

Saad Hassan Kiani ◽

Ahsan Altaf ◽

Mujeeb Abdullah ◽

Fazal Muhammad ◽

Nosherwan Shoaib ◽

...

Keyword(s):

Liquid Crystal Display ◽

Multiple Input Multiple Output ◽

Cost Effective ◽

Antenna System ◽

Human Hand ◽

Single Element ◽

Performance Parameters ◽

Mimo Antenna ◽

Principal Performance ◽

On Chip

This paper presents a novel design of a Multiple Input Multiple Output (MIMO) antenna system for next generation sub 6 GHz 5G and beyond mobile terminals. The proposed system is composed of a main board and two side boards. To make the design cost-effective, FR4 is used as a substrate. The design is based on a unit monopole antenna etched at the side substrate. The single element is resonating at 3.5 GHz attaining a 10 dB bandwidth of 200 MHz and a 6 dB bandwidth of 400 MHz. The single element is then transformed into an MIMO array of 8-elements with an overall dimension of 150 mm × 75 mm × 7 mm, providing pattern diversity characteristics and isolation better than −12 dB for any two radiating elements. A number of studies such as effects of human hand on the system that includes single hand mode and dual mode scenarios and the effects of Liquid Crystal Display (LCD) over the principal performance parameters of the system are presented. The envelop correlation coefficient (ECC) is computed for all the scenarios and it is found that ECC is less than 0.1 for any case and maximum channel capacity is 38.5 bps/Hz within the band of interest. The main advantage of the proposed design over available designs in the literature is that almost all of the main substrate is empty providing wide space for different sensors, systems, and mobile technology components. A brief literature comparison of the proposed system is also presented. To validate the proposed model, a prototype is fabricated and results are presented. This design can be applied on higher frequencies to future micromachines for on chip communications using same theocratical approach as the space for higher frequencies in mmwave spectrum has been reserved. The simulated results are in an excellent agreement with the measured results. All the main performance parameters of the design are calculated and compared with the measured results wherever possible.

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A compact single element dielectric resonator MIMO antenna with low mutual coupling

Frequenz ◽

10.1515/freq-2020-0167 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Ashim Kumar Biswas ◽

Ujjal Chakraborty

Keyword(s):

Dielectric Resonator ◽

Multiple Input Multiple Output ◽

Hybrid Network ◽

Single Element ◽

Dielectric Resonator Antenna ◽

Defected Ground Structure ◽

International Telecommunication Union ◽

Mimo Antenna ◽

International Telecommunication ◽

Input Multiple Output

Abstract A two-port multiple input multiple output (MIMO) dielectric resonator antenna is proposed where two orthogonally connected feed lines are combined to unite two orthogonally produced modes. The feed lines build a hybrid network. The backplane is defected by a circular defected ground structure (CDGS), which is extended by two rectangular slits placed orthogonally with the input ports. The antenna uses a single ‘H/I’-shaped dielectric resonator (DR) element. It covers frequency spectrum from 7.29 to 10.65 GHz and fulfils the international telecommunication union (ITU) (8–8.5 GHz) and Maritime Radio Navigational (8.85–9 and 9.2–9.5 GHz) application bands. The antenna offers very high port isolation (>18 dB) and diversity properties throughout the whole application band. The antenna also provides circular polarization (AR ≤ 3 dB) in the operating ranges from 8 to 8.25 GHz and 8.85 to 8.9 GHz. Simulated and measured results make clear to the antenna most suitable for MIMO operation.

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CSRR Loaded 2x1 Triangular MIMO Antenna for LTE Band Operation

Advanced Electromagnetics ◽

10.7716/aem.v6i3.538 ◽

2017 ◽

Vol 6 (3) ◽

pp. 78 ◽

Cited By ~ 1

Author(s):

C. J. Malathi ◽

D. Thiripurasundari

Keyword(s):

Patch Antenna ◽

Ground Plane ◽

Multiple Input Multiple Output ◽

Split Ring Resonator ◽

Antenna System ◽

Antenna Element ◽

Single Element ◽

Mimo Antenna ◽

Antenna Miniaturization ◽

Input Multiple Output

A 2´1 (two-element) multiple-input multiple-output (MIMO) patch antenna system is designed and fabricated for (2.43 – 2.57) GHz LTE band 7 operation. It uses comple-mentary split -ring resonator (CSRR) loading on its ground plane for antenna miniaturization. This reduces the single-element antenna size by 76%. The total board size of the proposed MIMO antenna system, including the GND plane is 50´50´0.8mm3, while the single-patch antenna element has a size of 18.5 ´16mm2. The antenna is fabricated and tested. Measured results are in good agreement with simulations. A minimum measured isolation of 10 dB is obtained given the close interelement spacing of 0.17λ.

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Dualband Microstrip Elliptic Patch 1x4 MIMO Antenna Design for 5G System Device

International Journal of Electrical, Energy and Power System Engineering ◽

10.31258/ijeepse.4.2.154-158 ◽

2021 ◽

Vol 4 (2) ◽

pp. 154-158

Author(s):

Yusnita Rahayu ◽

Mayo Andika

Keyword(s):

Patch Antenna ◽

Antenna Design ◽

Dual Band ◽

Single Element ◽

System Communication ◽

Mimo Antenna ◽

Transmission Rates ◽

Dual Band Antenna ◽

Communication Device ◽

24 Ghz

This paper presents a dual-band antenna for the 5G system communication device. The MIMO antenna can potentially boost the capacity and transmission rates to a new level in a communication system. The MIMO 1x4 elliptic circular patch is designed at 24 GHz and 27.8 GHz. From the simulated S11 results, a single patch antenna provides -16.364 dB at 24 GHz and -35.44 dB at 27.86 GHz. While for the MIMO 1x4 patch, the simulated S11 of -15.563 dB and -21.889 dB are achieved at both 24 GHz and 27.8 GHz, respectively. It has a gain value of 9.04 dBi at the 24 GHz and a gain value of 6.56 dBi at the 27.8 GHz. These gains are higher than the gain obtained with a single element.

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Double Overt-Leaf Shaped CPW-Fed Four Port UWB MIMO Antenna

Electronics ◽

10.3390/electronics10243140 ◽

2021 ◽

Vol 10 (24) ◽

pp. 3140

Author(s):

Shobit Agarwal ◽

Umair Rafique ◽

Rizwan Ullah ◽

Shakir Ullah ◽

Salahuddin Khan ◽

...

Keyword(s):

Frequency Band ◽

Impedance Matching ◽

Ultra Wideband ◽

Impedance Bandwidth ◽

Antenna Element ◽

Single Element ◽

Mimo Antenna ◽

Single Antenna ◽

Isolation Performance ◽

Diversity Technique

This paper presents a 4 × 4 multi-input multi-output antenna array for ultra-wideband applications. The single element of the array is comprised of a modified co-planar waveguide-fed double overt-leaf shaped patch radiator. The co-planar ground is optimized to achieve maximum impedance matching in the operating frequency band. The results show that the single antenna element offers an impedance bandwidth of 13.2 GHz starting from 3.2 GHz to 16.7 GHz. It is also observed from the results that the antenna offers good radiation characteristics and acceptable gain for the frequency band of interest. Furthermore, a 4 × 4 MIMO array is designed by utilizing the polarization diversity technique. To improve the isolation performance among antenna elements, a fan-shaped decoupler is introduced on the other side of the substrate, which ensures minimum isolation of 20 dB. Moreover, the proposed MIMO array operates in the frequency range of 2.75–16.05 GHz. The proposed MIMO array is fabricated and measured for the validation of simulation results, and it is observed that both the results are well in agreement.

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Multi-Band MIMO Antenna Design with User-Impact Investigation for 4G and 5G Mobile Terminals

Sensors ◽

10.3390/s19030456 ◽

2019 ◽

Vol 19 (3) ◽

pp. 456 ◽

Cited By ~ 10

Author(s):

Naser Ojaroudi Parchin ◽

Haleh Jahanbakhsh Basherlou ◽

Yasir I. A. Al-Yasir ◽

Atta Ullah ◽

Raed A. Abd-Alhameed ◽

...

Keyword(s):

Printed Circuit Board ◽

Multiple Input Multiple Output ◽

Circuit Board ◽

Slot Antenna ◽

Fourth Generation ◽

Impedance Bandwidth ◽

Single Element ◽

Mobile Terminals ◽

Mimo Antenna ◽

Multi Band

In this study, we propose a design of a multi-band slot antenna array applicable for fourth-generation (4G) and fifth-generation (5G) smartphones. The design is composed of double-element square-ring slot radiators fed by microstrip-line structures for easy integration with radio frequency (RF)/microwave circuitry. The slot radiators are located on the corners of the smartphone printed circuit board (PCB) with an overall dimension of 75 × 150 mm2. The proposed multiple-input multiple-output (MIMO) antenna is designed to meet the requirements of 4G and 5G mobile terminals with essential bandwidth for higher data rate applications. For −10 dB impedance bandwidth, each single-element of the proposed MIMO design can cover the frequency ranges of 2.5–2.7 GHz (long-term evolution (LTE) 2600), 3.45–3.8 GHz (LTE bands 42/43), and 5.00–5.45 GHz (LTE band 46). However, for −6 dB impedance bandwidth, the radiation elements cover the frequency ranges of 2.45–2.82 GHz, 3.35–4.00 GHz, and 4.93–5.73 GHz. By employing the microstrip feed lines at the four different sides of smartphone PCB, the isolation of the radiators has been enhanced and shows better than 17 dB isolation levels over all operational bands. The MIMO antenna is implemented on an FR-4 dielectric and provides good properties including S-parameters, efficiency, and radiation pattern coverage. The performance of the antenna is validated by measurements of the prototype. The simulation results for user-hand/user-head impacts and specific absorption rate (SAR) levels of the antenna are discussed, and good results are achieved. In addition, the antenna elements have the potential to be used as 8-element/dual-polarized resonators.

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A Compact Dual-Band CPW-Fed MIMO Antenna for Indoor Applications

International Journal of Antennas and Propagation ◽

10.1155/2019/4732905 ◽

2019 ◽

Vol 2019 ◽

pp. 1-7

Author(s):

Mohamed M. Morsy

Keyword(s):

Coupling Effect ◽

Impedance Matching ◽

Ground Plane ◽

Multiple Input Multiple Output ◽

Surface Current ◽

Dual Band ◽

Single Element ◽

Mimo Antenna ◽

Input Multiple Output ◽

Parametric Studies

A compact dual-band multiple-input-multiple-output (MIMO) antenna for LTE700, GSM1900, and UMTS applications with high isolation is presented. To enhance impedance matching and multiband operation, two inverted L-shaped monopoles are printed in the circular slot of the ground plane. The single element design is mirrored along the diameter of the circular slot of the ground plane. A strip is employed between the two radiators in order to mitigate the mutual coupling effect and enhance the impedance matching at operating bandwidths. Moreover, two slits are inserted in the ground plane in order to disturb the current distribution between radiating elements, and hence, the isolation between elements is improved. The measured 10 dB return loss bandwidth is 100 MHz (698–798 MHz) and 359 MHz (1765-2124 MHz) over the LTE700, GSM1900, and UMTS bands. The measured isolation between the two ports is less than -13 dB over the LTE700 bands while it is recorded to be less than -17 dB over the GSM1900 and UMTS bands. In addition, parametric studies of the proposed MIMO antenna are performed, and the surface current analysis is discussed to show the effect of the isolation structure. The radiation patterns are measured, and envelope correlation coefficient is calculated. The simulated results are in good agreement with measurements.

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