Angularly stable frequency selective surface for the gain enhancement of isolated multiple input multiple output antenna

Rahman, Saeed Ur; Deng, Hai; Sajjad, Muhammad; Rauf, Arshad; Shafiq, Zeeshan; Ahmad, M.O.; Iqbal, Shahid

doi:10.1002/mop.32980

Cited by 6 publications

(2 citation statements)

References 27 publications

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“…As shown in Fig. 1 (a), this structure is divided into two layers: the ring patch [28] and the zigzag line structure based on the shape of a cross. These shapes are coated separately and are on the upper and lower sides of a square dielectric substrate with a side length P and thickness h respectively.…”

Section: Structure Designmentioning

confidence: 99%

A New Miniaturized Double Stop-band Frequency Selective Surface

Li,

Wang,

Zhang

et al. 2024

ACES Journal

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A miniaturized double stop-band FSS for WLAN was proposed based on the structure of a ring patch with internal branches and a cross zigzag loaded line. This construction is obtained by using the multilayer connection method to paint the two layers of the patch that we designed on the top and bottom of the dielectric substrate to simulate the designed construction by using HFSS simulation. Analyzing the frequency response characteristics of the FSS indicates that the construction can generate two transmission band gaps at 1.92-2.17 GHz and 4.94-5.99 GHz in the WLAN wave. This construction has stronger polarization stability and angle stability when the incident electromagnetic wave is 0-60∘. It also has a simple construction, small size, and significant engineering applicationvalue.

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Section: Structure Designmentioning

confidence: 99%

A New Miniaturized Double Stop-band Frequency Selective Surface

Li,

Wang,

Zhang

et al. 2024

ACES Journal

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“…The ECC, shown in Figure 7(c), indicates the correlation of the given antenna. To achieve optimal MIMO performance, it is ideal for the ECC to be below 0.5 [40]. Figure 7(c) demonstrates a minimal correlation between two antennas, with a consistently simulated ECC value below 0.001 throughout the entire operating frequency range.…”

Section: Envelope Correlation Coefficientmentioning

confidence: 99%

A Novel Frequency Selective Surface Loaded MIMO Antenna with Low Mutual Coupling and Enhanced Gain

Ullah¹,

Cao²,

Khan³

et al. 2023

PIER M

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This study focuses on the utilization of a slotted patch MIMO antenna to enhance isolation and gain. The MIMO antenna configuration includes two radiators integrated with an array of Frequency Selective Surfaces (FSSs). These antenna components are implemented on an FR-4 substrate and encompassed by FSS units that are optimized for X-band frequencies. The proposed MIMO antenna possesses dimensions of 65 mm (width) × 45 mm (length) × 1.6 mm (height). The primary objective of incorporating FSSs is to not only enhance isolation but also achieve high gain. The proposed FSS design features a circular ring structure with a rectangular loop at its center. The FSS unit cells exhibit excellent stability across various polarization incidence angles and operate within the frequency range of 7 to 9 GHz. The FSS loaded antenna offers a bandwidth ranging from 8.0 to 8.55 GHz, with a peak gain of 6.5 dB and isolation exceeding −20 dB among the MIMO elements. Furthermore, the study explores the MIMO antenna's performance in terms of diversity gain (DG), efficiency, and Envelope Correlation Coefficient (ECC), demonstrating superior results compared to existing state-of-the-art approaches. The proposed findings are validated by fabricating a sample prototype and conducting a comprehensive comparison between simulated and measured results.

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