A New UWB-MIMO Multi-Antennas With High Isolation For Satellite Communications

Abdelhamid, Chafai; Daghari, Marwa; Sakli, Hèdi; Hamrouni, Chafaa

doi:10.1109/iwcmc.2019.8766753

Cited by 9 publications

(3 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, many MIMO antennas have been studied, 2–17 some multiband and wideband MIMO antennas for Sub‐6GHz are research hotspot currently 3,18–24 . In, 21 a small dual‐port Sub‐6 GHz MIMO antenna for 5G system is designed, with bandwidth of 4.9–5.06 GHz and isolation below ‐21.3 dB.…”

Section: Introductionmentioning

confidence: 99%

High isolation 4‐port MIMO sloted antenna for Sub‐6 GHz wireless applications

Ren

You

2023

Micro & Optical Tech Letters

View full text Add to dashboard Cite

Aiming at the application of Sub‐6 GHz band, this paper presents a high isolation four‐port MIMO slot antenna with CPW feeding mode. About this antenna, two parallel binary antennas are oppositely arranged with connected ground, and isolation branches are adopted to improve isolation. Each element antenna is realized through elliptical shape patch and trident structure feed line. The measured results show that its working frequency band is 1.82–6.5 GHz band, with ports isolation less than −20 dB. In addition, its other performance parameters are good, such as gain of 7.03 dB and ECC parameter below 0.004, and CCL is less than 0.3 bps/Hz. The antenna has high isolation and it can not only work in the mobile communication frequency bands such as n41, n77, n78, and n79, but also work in the frequency band of the IoT, such as WiFi5, V2X, and DSRC.

show abstract

Section: Introductionmentioning

confidence: 99%

High isolation 4‐port MIMO sloted antenna for Sub‐6 GHz wireless applications

Ren

You

2023

Micro & Optical Tech Letters

View full text Add to dashboard Cite

show abstract

“…Fishaped stubss are employed in the ground-plane in (Iqbal et al 2017), to produce efficient isolation between two elements. In a four-element MIMO network that are very close to one another (Abdelhamid et al 2019), 4 linear SRR structures are used between adjacent elements to ensure good isolation. In (Zhu et al 2017), 6 FSS's (Frequency Selective Structures) are positioned in the middle of UWB-MIMO antenna backside that reduced coupling by 7.2 dB.…”

Section: Introductionmentioning

confidence: 99%

A compact metamaterial inspired UWB-MIMO fractal antenna with reduced mutual coupling

Reddy

Sheela²,

Parbot³

et al. 2020

Microsyst Technol

View full text Add to dashboard Cite

This article focuses on Metamaterial inspired UWB-MIMO fractal antenna. Antenna loaded with the metamaterial structure achieved an impedance bandwidth of 5.8-15 GHz (98.63 %). Mutual coupling between the two radiating elements is obtained to be less than -25 dB. The patterns of radiation are stable over the operating range and a peak gain of 6.2 dBi is obtained at 14 GHz. Throughout the operating range, the radiation efficiency is > 88%. The obtained Envelope correlation coefficient-ECC (<0.07), Mean effective gain-MEG (< 3 dB), Total active reflection coefficient-TARC (< -10 dB) and Diversity gain-DG (>9.98) proved that the desired antenna has a good diversity performance. The measured and simulated results are well adjusted, so that the antenna can be used for ultra-wide band applications. Simulation is conducted using HFSS simulation tool and printed on a 30 x 30 x 1.6 mm 3 FR4 material.

show abstract

“…Noting that the electromagnetic coupling presented between two patchesnearby is mainly of the capacitive type [12,13]. Indeed, by introducing an inductance between the two patches, a rejection filter behavior allows decoupling [14,15]. A decoupling of the order of 14 dB is obtained in the operating band [3.2 -17.7] GHz.…”

Section: Introductionmentioning

confidence: 99%

Mutual Reduction in the Coupling of the MIMO Antenna Network Applied to the Broadband Transmission

Abdelhamid¹,

Sakli²

2020

Adv. sci. technol. eng. syst. j.

Self Cite

View full text Add to dashboard Cite

In this article, a new form of UWB (ultra-wide-band) antenna operating to the desired specifications, obtained from a base antenna to which some modifications are made. The proximity of the antennas causes a mutual coupling phenomenon thus generating an apparent modification of their characteristics. It is therefore crucial to have the minimum level of insulation with a small possible separation distance between the antennas to ensure efficient operation of our multiple input and multiple output (MIMO) system. The separation spacing between the antennas is close to 0.15λ0 (λ0 is the wavelength in free space), where the coupling can be very weak. To overcome this weakness, two efficient methods are applied to minimize mutual coupling in a four-element MIMO antenna, such as the use of the neutralization line and the use of split ring resonator metamaterial (SRR). The objective of our paper is, on the one hand the design of UWB antenna, and on the other hand to minimize the coupling between four UWB-MIMO antennas using the two methods of isolation mentioned above. A coupling minimization of more than 15 dB is obtained using the neutralization line and more than 20 dB with the use of metamaterial while maintaining the operating band and radiation specifications of the MIMO antennas.

show abstract

A New UWB-MIMO Multi-Antennas With High Isolation For Satellite Communications

Cited by 9 publications

References 11 publications

High isolation 4‐port MIMO sloted antenna for Sub‐6 GHz wireless applications

High isolation 4‐port MIMO sloted antenna for Sub‐6 GHz wireless applications

A compact metamaterial inspired UWB-MIMO fractal antenna with reduced mutual coupling

Mutual Reduction in the Coupling of the MIMO Antenna Network Applied to the Broadband Transmission

Contact Info

Product

Resources

About