Performance enhancement of microstrip patch antenna using metamaterial cover

Mahamuni, Chaitanya Vijaykumar

doi:10.1109/icgtspicc.2016.7955332

Cited by 8 publications

(7 citation statements)

References 8 publications

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“…The losses of both conductive and dielectric materials have been taken into account in the simulation model. The initial dimensions of the investigated resonator unit cell have been determined on the basis of analytical relationships [5,42], in order to adjust them to an arbitrarily selected frequency of approx. 250 MHz (VHF).…”

Section: Metamaterials Structure Simulation Researchmentioning

confidence: 99%

“…The available literature presents various methods of recovering electric energy from the electromagnetic field, mostly based on antenna systems [1,2]. The undoubted disadvantages of antennas, however, are their low geometric compactness (small active surface in relation to the occupied volume) and relatively low absorption (the ability to absorb electromagnetic field energy) [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…A potential solution to the above problems is absorption systems based on resonant metamaterials [7][8][9][10][11][12][13][14][15][16][17], i.e., special electromagnetic structures exhibiting unusual circuit-field properties in certain frequency bands. The miniaturization potential, the possibility of adjusting the geometry of metamaterials to the substrate on which they are to be installed (e.g., a car body, a roof or walls of a building, housing of electronic appliances), much higher absorption, additional beneficial properties and extensive research into the technology [5,8,9,[14][15][16][17][18][19][20][21][22][23][24][25][26][27] (mostly in the microwave spectrum) are important factors supporting the development of effective solutions for obtaining energy from the electromagnetic field using metamaterial absorbers. Table 1 shows a brief summary of selected parameters of EH systems based on rectennas and resonant metamaterials presented in the technical literature in order to compare their electromagnetic energy absorption capabilities.…”

Section: Introductionmentioning

confidence: 99%

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Metamaterial-Based Sub-Microwave Electromagnetic Field Energy Harvesting System

Nowak

2021

Energies

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This paper presents the comprehensive analysis of the sub-microwave, radio frequency band resonant metastructures’ electromagnetic properties with a particular emphasis on the possibility of their application in energy harvesting systems. Selected structures based on representative topologies of metamaterials have been implemented in the simulation environment. The models have been analyzed and their substitute average electromagnetic parameters (absorption, reflection, transmission and homogenized permeability coefficients) have been determined. On the basis of simulation research, prototypes of electromagnetic field two-dimensional absorbers have been manufactured and verified experimentally in the proposed test system. The absorber has been implemented as a component of the low-cost energy harvesting system with a high-frequency rectifier and a voltage multiplier, obtaining usable DC energy from the electromagnetic field in certain frequency bands. The energy efficiency of the system has been determined and the potential application in energy harvesting technology has been assessed.

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Section: Metamaterials Structure Simulation Researchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Metamaterial-Based Sub-Microwave Electromagnetic Field Energy Harvesting System

Nowak

2021

Energies

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“…However, thick substrates cause problems in impedance matching, while parasitic patches linearly increase the size of the antenna and complicate its design [2]. The 'holy grail' therefore is to design advanced materials [3] [4][5][6], composites or metamaterials [7][8][9] to act as dielectric substrates for MPAs which intrinsically result in larger bandwidths.…”

Section: Introductionmentioning

confidence: 99%

High quality factor cold sintered Li2MoO4BaFe12O19 composites for microwave applications

et al. 2019

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Ceramics-ceramic composites in the series (1-x)Li2MoO4-xBaFe12O19 (LMO-BF12, 0.00≤x≤0.15) have been cold sintered at 120 o C and their structure and properties characterized. X-ray diffraction, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) confirmed that compositions were dual phase and had a dense microstructure. Composites in the xBF12-(1-x)LMO (0.0≤x≤0.15) series resonated at MW frequencies (~6GHz) with 5.6≤r≤5.8 and Qf =16,000-22,000 GHz, despite the black colour of compositions with x > 0. The permeability of the composites was measured in the X band (~8 GHz) and showed an increase from 0.94 (x=0.05) to 1.02 (x=0.15). Finite element modelling revealed that the volume fraction of BF12 dictates the conductivity of the material, with a percolation threshold at 10 vol.% BF12 but changes in r as a function of x were readily explained using a series mixing model. In summary, these composites are considered suitable for the fabrication of dual mode or enhanced bandwidth microstrip patch antennas.

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“…In this context, we study the development of a 3D structure with dodecahed microstrip antenna [3] network modeling for new USS development. Proposed new architecture permits a full visibility of USS with corresponds station [4].…”

Section: Introductionmentioning

confidence: 99%