Experiments on metamaterials for sub-wavelength antenna insulation at PEC boundaries

Almeida, Jorge Virgilio de; Siqueira, G.L.; Mosso, Marbey M.; Maia, Marcelo; Souza, Jorge A. M.

doi:10.1002/mop.30559

Cited by 6 publications

(8 citation statements)

References 4 publications

(4 reference statements)

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“…A comparison of this work with published literatures is tabulated in Table in terms of number of bands, size, isolation, polarization and gain. The configuration in References are smaller in size than the proposed work. The proposed configuration has dual bands whereas the designs in References consist of a single band.…”

Section: Discussionmentioning

confidence: 89%

“…The configuration in References are smaller in size than the proposed work. The proposed configuration has dual bands whereas the designs in References consist of a single band. The triple‐band antenna with smaller size has poor isolation and LP.…”

Section: Discussionmentioning

confidence: 89%

“…The triple‐band antenna with smaller size has poor isolation and LP. The gain enhancement method is not introduced in References Compact dual‐band antennas are presented in References These have only LP and no gain enhancement techniques are described. In addition to this, via is used in References which increases design complexity.…”

Section: Discussionmentioning

confidence: 99%

“…The isolation between the ports of a MIMO antenna should be more than 15 dB for practical applications . Many researchers have proposed linearly polarized MIMO antenna with single‐band response in Reference and multiband responses in References and . Very few circularly polarized (CP) MIMO antennas are published in literatures .…”

Section: Introductionmentioning

confidence: 99%

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Dual‐band CPW fed MIMO antenna with polarization diversity and improved gain

Islam

Das²

2020

Int J RF Microw Comput Aided Eng

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A dual‐band MIMO slot antenna with polarization diversity and improved gain is proposed in this article. The antenna is composed of two C‐type back‐to‐back connected slot resonators and offers resonances at 3.5 and 5.2 GHz. This antenna element is further used to design a MIMO antenna. By introducing one U‐shaped slot between two antenna elements, isolation between the ports of this MIMO antenna is improved further. Finally, an artificial magnetic conductor (AMC) is placed below the MIMO antenna to enhance its gain. Gain enhancement of 1.5 and 2.2 dB is achieved at lower and upper band, respectively. S‐parameters, radiation patterns, gain, envelope correlation coefficient, and channel capacity loss are investigated to conclude about its performances in MIMO applications. Dual band dual polarization (circular and linear), improved isolation, polarization diversity (right‐hand circular polarization and left‐hand circular polarization), gain enhancement all are presented in a simple design represents the novelty of the proposed MIMO antenna.

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Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dual‐band CPW fed MIMO antenna with polarization diversity and improved gain

Islam

Das²

2020

Int J RF Microw Comput Aided Eng

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“…It is more convenient to use a multiband antenna instead of multiple antenna elements to operate in multiband, because the latter leads to increase in size of the device. Various techniques to design single band, multiband, and UWB MIMO antenna are reported in recent years in engineering community . In Ref.…”

Section: Introductionmentioning

confidence: 99%

Design of a compact triple band antenna with independent frequency tuning for MIMO applications

Islam

Kumar

Sen

et al. 2018

Int J RF Microw Comput Aided Eng

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In this article, a planar, low profile microstrip line‐fed triple band multiple input multiple output (MIMO) antenna is presented for WiMax (2.5/3.5/5.5 GHz)/WLAN (2.4/3.6/5.8 GHz) applications simultaneously. The single element of the MIMO antenna consists of (i) a rectangular split ring resonator (SRR), (ii) a stepped impedance resonator (SIR) inside the SRR and (iii) a slot on the SIR. Each of the resonators generates its own individual band and each band is independently tunable. The antenna exhibits three operating bands at 2.35‐2.85 GHz, 3.25‐3.90 GHz and 5.45‐5.65 GHz. Four antenna elements are used to design the proposed MIMO antenna. The simulated results are observed and reported in terms of S‐parameters, gain, radiation patterns, envelope correlation coefficient (ECC), diversity gain (DG), channel capacity loss (CCL) and total active reflection coefficient. ECC and CCL are within the acceptable range defined for 4G and 5G application standards. To validate the simulation results a prototype structure is fabricated and the measured results are compared with those obtained from the simulation.

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