A compact dual‐band multi‐input multi‐output antenna for <scp>5G/WLAN/Bluetooth</scp> applications

Xi, Shuqi; Huang, Jianlin; Chen, Bo; Liu, Gui

doi:10.1002/mop.33089

Cited by 8 publications

(5 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To minimize the electromagnetic interference between the two monopoles, a metamaterial unit is used which surrounds the antenna element [23]. The isolation is improved more than 15 dB by creating a rectangular slot in the ground plane and using a decoupling strip with three-quarter circular rings in [24]. A Meta surface-based decoupling method is suggested in [25] to reduce the mutual couplings between the patches operating at two separate bands.…”

Section: Introductionmentioning

confidence: 99%

Circumferential slots based decoupled wideband MIMO antenna for 5G and sub-6 GHz applications

Sharma,

Tiwari,

Singh

2024

Phys. Scr.

View full text Add to dashboard Cite

This paper investigates a small size 2×2 wideband multiple input multiple output (MIMO) antenna covering frequency band of 2.61 to 5.52 GHz. The antenna structure consists of elliptical ring patch with multiple circumferential slots. The edge-to-edge separation between the patches are kept 3.6 mm with volumetric dimensions of 30×46×1.6 mm3. The narrow slits are etched in the tapered ground plane to obtain the wideband characteristics. The electromagnetic coupling is improved more than 16 dB by employing the neutralization technique. The measured average gain and radiation efficiency of the proposed antenna are above 2.61dBi and 83.54%, respectively across the operating band. In addition to that, the important MIMO diversity parameters are investigated. The group delay and signal analysis in different orientations are also studied to ensure the quality performance of the antenna. The proposed MIMO antenna is simulated using CST microwave studio and further validated with the measurements. In addition to that, the parallel and orthogonal configuration of 4×4 MIMO antennas are analyzed by extending the proposed 2×2 MIMO design. The 4-port MIMO antennas exhibit the operating frequency bands varying from 2.80 to 5.58 GHz and 3.4 to 5.52 GHz, respectively for parallel and orthogonal MIMO configurations. The diversity parameters of 4-port MIMO antennas are calculated and compared with the measured results to verify its practical applications. Finaly, the SAR analysis of the antenna is presented at 3.08 and 5.20 GHz for 1/10 g tissues and are found 0.111/0.106 and 0.079/0.063 W/Kg, respectively. The proposed MIMO antenna designs are suitable for modern high-speed communication for 5G and sub-6 GHz frequency bands.

show abstract

Section: Introductionmentioning

confidence: 99%

Circumferential slots based decoupled wideband MIMO antenna for 5G and sub-6 GHz applications

Sharma,

Tiwari,

Singh

2024

Phys. Scr.

View full text Add to dashboard Cite

show abstract

“…One is a single element with dual-band operation. The structure of this type usually contains one main radiator for basic resonant mode, and other resonant modes that are generated with the corresponding techniques, such as parasitic patch, 1,2 slots on the radiator, [3][4][5] feeding position, 6,7 and shorting pin. 8,9 The circular patch fed at the center is combined with the parasitic periodic mushroom elements, so that the whole structure works in the zeroth order resonant mode and TM02 mode.…”

Section: Introductionmentioning

confidence: 99%

Stacked dual‐band antenna with flexible combination structure based on frequency selective surface

Dai,

Wu,

et al. 2024

Micro & Optical Tech Letters

View full text Add to dashboard Cite

A stacked dual‐band antenna system based on frequency selective surface (FSS) is proposed in this paper. The system consists of lower band (LB) and higher band (HB) antenna elements with a frequency ratio of 2.5. FSS is introduced between LB and HB elements, which can fully reflect LB wave and transmit HB wave without reflection. LB and HB antenna arrays can be designed independently and combined with only a few screws, allowing for flexible combination of different arrays according to different needs. The stacked scheme can avoid the generation of grating lobes caused by excessive spacing of HB elements. Two different arrays were analyzed, simulated, and measured to validate the excellent features of the proposed scheme, such as easy to combine, stable radiation patterns, and lower mutual interference for LB and HB elements, respectively. The proposed system can be a promising candidate for dual‐band wireless communication with large frequency ratio.

show abstract

“…During the design process of many proposed MIMO antennae [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 ], there exists a complex problem of maintaining the compact volume and achieving high isolation at the same time. Many tools have been used to decrease the mutual coupling, including defected ground structure (DGS), parasitic element, neutralization line, passive resonator, electromagnetic bandgap (EBG) and so on.…”

Section: Introductionmentioning

confidence: 99%

“…A two-port antenna with double bands is presented in [ 12 ], exhibiting better than 15 dB isolation. Two microstrip-fed two-element two-band antennae for 5G applications are presented [ 15 , 17 ], the isolation of the antenna in [ 15 ] is better than 15 dB, and the other isolation of the antenna in [ 17 ] is better than 16 dB. Dual-band MIMO antennae with four elements are proposed in both [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

A Design of Quad-Element Dual-Band MIMO Antenna for 5G Application

Shi

Zhao

2023

Micromachines

View full text Add to dashboard Cite

A dual-band four-element MIMO antenna was designed and fabricated with enhanced isolation. The introduced antenna was fed by a coplanar waveguide (CPW) and consisted of four identical monopole antenna elements placed perpendicular to each other. A cross-shaped stub and orthogonal placement of four elements were introduced for high isolation. Modified ground structure was used for extending bandwidths. The measured results demonstrate that the introduced antenna has double bands (S11 < −10 dB) covering 3.28–4.15 GHz and 4.69–6.01 GHz, with fractional bandwidths of 23.4% and 24.7% and a high isolation S21, S31 better than 19 dB. The curves of the envelope correlation coefficient (ECC) and diversity gain (DG) were less than 0.0025 and higher than 9.999, respectively, indicating a low correlation between antenna elements. Furthermore, gain, efficiency, channel capacity loss (CCL), total active reflection coefficient (TARC) and mean effective gain (MEG) have all been investigated over the operating band to determine the antenna’s diversity performance. In accordance with the simulated and measured results, it confirms that the proposed antenna is appropriate for 5G applications.

show abstract

A compact dual‐band multi‐input multi‐output antenna for 5G/WLAN/Bluetooth applications

Cited by 8 publications

References 23 publications

Circumferential slots based decoupled wideband MIMO antenna for 5G and sub-6 GHz applications

Circumferential slots based decoupled wideband MIMO antenna for 5G and sub-6 GHz applications

Stacked dual‐band antenna with flexible combination structure based on frequency selective surface

A Design of Quad-Element Dual-Band MIMO Antenna for 5G Application

Contact Info

Product

Resources

About