A Compact Two-via Hammer Spanner-Type Polarization-Dependent Electromagnetic Bandgap Structure

Bhavarthe, Pramod P.; Rathod, Surendra S.; Reddy, Kota Srinivas

doi:10.1109/lmwc.2018.2809042

Cited by 9 publications

(9 citation statements)

References 12 publications

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“…The conventional center located via EBG (CLV-EBG) structure can be represented as an equivalent parallel LC resonance circuit [1][2][3][4][6][7][8]. The resonance frequency (f c ) of parallel LC circuit is given as…”

Section: Proposed Multi-layer Meander Line Step Via-ebgmentioning

confidence: 99%

“…where (μ 0 ) = permeability of free space, (h) = total substrate height, (a) = width of each EBG patch, (g) = gap between two adjacent EBG cells, ( r ) = dielectric constant of the substrate, and ( 0 ) = permittivity of free space. The bandgap bandwidth (BW) [1][2][3][4][6][7][8] of EBG structure is given as…”

Section: Proposed Multi-layer Meander Line Step Via-ebgmentioning

confidence: 99%

“…Electromagnetic band gap (EBG) structures play an important role in antenna and microwave engineering due to their stopband characteristics [1,2]. In past years, single layer [3][4][5], polarization dependent [6,7], multi-layer [8][9][10][11][12][13][14][15][16] type of EBG structures have been reported. As per recent trends in antenna and microwave engineering multi-layer EBG structures are in demand [8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

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A Novel Compact Electromagnetic Band Gap Structure to Reduce the Mutual Coupling in Multilayer Mimo Antenna

Parvathi¹,

Gupta²,

Bhavarthe³

2020

PIER M

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This paper presents a novel compact multilayer meander strip line step-via electromagnetic band-gap (MLSV-EBG) structure with the application of mutual coupling reduction in a multilayer multiple input multiple output (MIMO) antenna. The proposed EBG-cell has been developed by using multilayer, novel meander strip line, and step-via concept. To analyse the proposed EBG a parallel LC model method is used. In the proposed MLSV-EBG structure, due to step-via concept, current path length increases, and compactness is achieved per unit cell. Parametric study is also presented. MLSV-EBG structure unit cell is simulated using ANSYS high frequency structure simulator (HFSS), and 5 × 5 cells are printed on an FR4 substrate for band-gap measurements. Simulated and measured results prove that compared with three-layer central located via EBG (CLV-EBG) and edge located via EBG (ELV-EBG), size reductions of 47.01% and 43.01% have been achieved, respectively, which shows that step via concept gives the significant size reduction per unit multilayer EBG cell. The application of proposed MLSV-EBG for the reduction of mutual coupling between two multilayer MIMO antennas is also demonstrated. The key contribution of the presented work is that the proposed compact multi-layer EBG structure is useful in a multi-layer environment at a lower frequency.

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Section: Proposed Multi-layer Meander Line Step Via-ebgmentioning

confidence: 99%

Section: Proposed Multi-layer Meander Line Step Via-ebgmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Novel Compact Electromagnetic Band Gap Structure to Reduce the Mutual Coupling in Multilayer Mimo Antenna

Parvathi¹,

Gupta²,

Bhavarthe³

2020

PIER M

Self Cite

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“…Placing an electromagnetic band gap structure (EBG) near the feed line of an antenna exhibits advantages like less effect on radiation performance on un-notch frequencies, less coupling effect, etc. [13][14][15][16]. However, fixed band rejection is not constantly required, rather variable band rejection is required.…”

Section: Introductionmentioning

confidence: 99%

A Novel Multilayer Ebg Structure to Reconfigure the Band-Notch of Uwb Monopole Printed Antenna

Parvathi¹,

Gupta²

2021

PIER C

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“…In recent years, electromagnetic metamaterials have physically realizable response functions that do not occur in natural materials, which have been widely researched in depth. Various types of electromagnetic metamaterials, such as perfect lens, electromagentic bandgap (EBG), double‐negative (DNG) materials, and artificial magnetic conductors (AMCs), to name a few, have attracted a considerable number of attentions from the worldwide researchers. AMCs were proposed for the first time in 1999, which have the unique property similar to magnetic conductors.…”

Section: Introductionmentioning

confidence: 99%

Design of phase matching chessboard‐like electromagnetic metasurfaces for wideband radar cross section reduction

Chen

Shen

et al. 2019

Micro & Optical Tech Letters

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In this article, a chessboard‐like electromagnetic metasurfaces which can realize the polarization compensation and cancellation of the reflection beam in microwave region is designed and realized for wideband radar cross section (RCS) reduction. The chessboard‐like electromagnetic metasurfaces are composed of a square annular artificial magnetic conductor (AMC) combination with the Jerusalem cross AMC. Simulation and experimental results demonstrate that the chessboard‐like electromagnetic metasurfaces exhibit significantly RCS reduction over −10 dB in the frequency bandwidths 6.16‐18 GHz, and two RCS reduction peaks at 7.0 and 12.0 GHz in the considering frequency ranges for the normal incidence of an electromagnetic wave. The physical mechanisms of the RCS reduction peaks can be elucidated by the phase matching technology similar to the impedance matching technology applied to radar absorbing materials (RAMs). The basic physical property implies that RCS reduction based on the composite AMC metasurfaces can be improved greatly by introducing as many phase matching points as possible in the functional frequency bands. Considered that the phase matching is a necessary condition rather than a sufficient condition for RCS reduction of the chessboard‐like AMCs structures, other physical mechanisms of RCS reduction are also discussed by far field distribution, near field distribution and the properties of mono‐static RCS reduction.

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A Compact Two-via Hammer Spanner-Type Polarization-Dependent Electromagnetic Bandgap Structure

Cited by 9 publications

References 12 publications

A Novel Compact Electromagnetic Band Gap Structure to Reduce the Mutual Coupling in Multilayer Mimo Antenna

A Novel Compact Electromagnetic Band Gap Structure to Reduce the Mutual Coupling in Multilayer Mimo Antenna

A Novel Multilayer Ebg Structure to Reconfigure the Band-Notch of Uwb Monopole Printed Antenna

Design of phase matching chessboard‐like electromagnetic metasurfaces for wideband radar cross section reduction

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