Dual polarization and mutual coupling improvement of UWB MIMO antenna with cross shape decoupling structure

Alfakhri, Abdullah

doi:10.1016/j.prime.2023.100130

Cited by 5 publications

(4 citation statements)

References 25 publications

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“…Polarization refers to the orientation of the electric field in an electromagnetic wave. For instance, a study by Alfakhri and Zhang et al [29,30] investigated a Multiple-Input-Multiple-Output (MIMO) antenna design to accomplish dual-polarization operation and a Defected Ground Structure (DGS). Moreover, the design showed a stable radiation pattern.…”

Section: Discussionmentioning

confidence: 99%

Ultra-Wideband-Based Time Occupancy Analysis for Safety Studies

Fakhoury,

Ismail

2023

Sensors

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This study investigates the use of ultra-wideband (UWB) tags in traffic conflict techniques (TCT) for the estimation of time occupancy in a real-world setting. This study describes UWB technology and its application in the TCT framework. Many experiments were conducted to evaluate the accuracy of the occupancy time measurement using a UWB-based tag. The UWB performance was measured using data from UWB tags as well as a video camera system by subtracting the time occupancy within a conflict zone. The results show that the UWB-based system can be utilized to estimate occupancy time with a mean absolute error difference from ground truth measurements of 0.43 s in the case of using two tags and 0.06 s in the case of using one tag in an 8 m × 8 m study area with double-sided two-way communication. This study also highlights the advantages and limitations of using UWB technology in TCT and discusses potential applications and future research directions. The findings of this study suggest that the UWB-based localization of multiple tags needs further improvements to enable consistent multi-tag tracking. In future work, this technology could be utilized to estimate post-encroachment time (PET) in various traffic scenarios, which could improve road safety and reduce the risk of collisions.

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Section: Discussionmentioning

confidence: 99%

Ultra-Wideband-Based Time Occupancy Analysis for Safety Studies

Fakhoury,

Ismail

2023

Sensors

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“…The values of the inductor (L) and capacitor (C) in an equivalent circuit can be calculated from the reactance (XL) and susceptance (BC) of the circuit. The equations for XL and BC [9][10][11][12][13][14][15][16][17][18] are based on references [42] and [43], respectively. )} + 𝐺(𝑝, 𝑔, 𝜆, 𝜃)] 𝜀 𝑒𝑓𝑓 .…”

Section: Equivalent Circuit Of the Fss Unit Cell (Ec)mentioning

confidence: 99%

“…In addition, parasitic or slot antennas are easy to design, small in size, and can be easily manufactured using either printed circuit board (PCB) technology or waveguides [8]. Electromagnetic Band Gap (EBG) is another method used in [15], while Split Ring Resonators (SRRs) are used in [16], Complimentary Split Ring Resonators (CSRRs) in [17], and Defected Ground Structure (DGS) in [18]. FSS techniques can enhance the isolation between antennas, but they are not typically compatible with low-profile structures and can affect the radiation pattern of the antennas.…”

Section: Introductionmentioning

confidence: 99%

“…However, FSS techniques can be used between Dielectric Resonator Antennas (DRAs) positioned in the 𝐻 -plane by using SRRs cells array employed in the 𝐸 -plane. By modelling the SRRs formation, it is possible to achieve bandstop functionality within the frequency band of the antenna [18]- [20]. Moreover, one of the challenges facing researchers in 5G wireless communication is developing compact MIMO antennas that offer both high gain and isolation for Sub6-GHz 5G and NR spectrums.…”

Section: Introductionmentioning

confidence: 99%

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A New Technique of FSS-Based Novel Chair-Shaped Compact MIMO Antenna to Enhance the Gain for Sub-6GHz 5G Applications

Zeain,

Abu,

Althuwayb

et al. 2024

IEEE Access

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This paper introduces a new compact Chair-shaped MIMO antenna with two radiating elements and a single layer of frequency-selective surface (FSS) for 5G Sub-6GHz communication systems. They use two techniques, Parasitic element, and (FSS), for isolation and gain enhancement, respectively. The 1 × 2 MIMO antenna using a coplanar waveguide (CPW) fed. Moreover, an FSS array structure consisting of (a 68-unit) Square-shaped structure with Circular Slot (SCS) shaped cells is employed using a new technique (Surround Technique) to enhance the gain and isolation between the elements of the MIMO antenna. The proposed MIMO antenna system is printed on a Rogers 4350B substrate with a thickness of 0.508 mm. The antenna's performance is evaluated using S-parameters, radiation properties, and MIMO characteristics. The MIMO antenna system works in the Sub 6-GHz 5G band, which ranges from 3 to 6 GHz. Adding the FSS layer enhances the MIMO's antenna gain to a peak measured gain of 7.96 dBi and it also improves the MIMO antenna's isolation. The performance metrics of the proposed MIMO antenna were also investigated, including measures values of ECC = 0.004, DG = 9.99 dB, CCL = 0.2 bit/s/Hz, MEG = -3.13 dBi, and TARC = > 0dB) exhibits advantageous antenna characteristics. The observed radiation characteristics of the suggested MIMO antenna system indicate its suitability for the upcoming 5G communication systems.

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Wideband mm-wave 30 GHz Pixled MIMO Antenna with Improved Isolation and Radiation Pattern

Veerella,

Ratna Kumari

2024

J Infrared Milli Terahz Waves

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Dual polarization and mutual coupling improvement of UWB MIMO antenna with cross shape decoupling structure

Cited by 5 publications

References 25 publications

Ultra-Wideband-Based Time Occupancy Analysis for Safety Studies

Ultra-Wideband-Based Time Occupancy Analysis for Safety Studies

A New Technique of FSS-Based Novel Chair-Shaped Compact MIMO Antenna to Enhance the Gain for Sub-6GHz 5G Applications

Wideband mm-wave 30 GHz Pixled MIMO Antenna with Improved Isolation and Radiation Pattern

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