Compact metamaterial inspired periwinkle shaped fractal antenna for multiband applications

Madhav, B. T. P.; Rao, M Venkateswara; Manisahithi, K; Sarvani, D S S; Dharani, M; Reddy, S V Rami

doi:10.14419/ijet.v7i1.1.10157

Cited by 6 publications

(2 citation statements)

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“…Initially AVA is designed considering microstrip patch of proper dimensions, which depends on required frequency of operation of antenna along with the microstrip transmission line launched on denim jeans as substrate whose relative permittivity ɛ is 1.7 and tan ∂ of 0.025, respectively as shown in figure 3(a) [12]- [19].A balun structure is introduced to match 50Ω microstrip feed line and patch antenna as the AVA is of balanced structure. The balun structure is the parallel plate transmission line which is connected into patch and microstrip feed line by slotting and uniting them [6], [7].Generally the balun structure is developed based on the band width required, operating frequency and physical architecture.…”

Section: Antenna Design-1mentioning

confidence: 99%

A Novel Approach of Designing Insubstantial AVA operating in UWB for GPR Applications

2020

IJETER

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ABSTRACTGround Penetrating Radar (GPR) is one of the capable technologies for exposure and recognition of both metallic and non metallic objects masked under the ground. Bandwidth is one of the parameter for GPR system performance, very high frequencies are required for better resolution of microscopic objects. Ultra wide band GPR system can able to meet the current requirement with more efficiency. An Anti-podal Vivaldi Antenna (AVA) is proposed such that its operating frequency range varies from wideband to ultra wide band. A novel approach of designing Anti-podal Vivaldi Antenna is designed to increase the performance characteristics like gain, frequency of operation, radiation pattern, to reduce return loss, to reduce side lobes levels and to reduce the fabrication cost. In order to reduce the cost of fabrication, the substrate material preferred as denim material. The reason for choosing denim material is, it can be easily incorporated and it is homogeneous in nature. Anti-podal Vivaldi Antenna is designed, simulated using HFSS software and it is fabricated. The results obtained in the simulation process and the fabricated antennas are very relative to each other. The performance characteristics measured by simulation process achieves a maximum gain of more than 7dB and practical antenna achieves around 6.92dB with an operating frequency range from wide band to ultra wide band range from 5.2GHz to 13GHz.

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Section: Antenna Design-1mentioning

confidence: 99%

A Novel Approach of Designing Insubstantial AVA operating in UWB for GPR Applications

2020

IJETER

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“…Out of the above proposed, the binomial is best suited for suppressing SLL at the cost of half power beam width (Madhav et al , 2018). The alternative approach uses the increment in the number of elements of antenna increasing its radiation concentrated to a direction.…”

Section: Introductionmentioning

confidence: 99%

An improved peak side lobe reduction method for linear array antenna for military applications

Kotamraju

2021

IJICC

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PurposeThe purpose of this paper is to improve energy efficiency and further reduction of side lobe level the algorithm proposed is firework algorithm. In this paper, roused by the eminent swarm conduct of firecrackers, a novel multitude insight calculation called fireworks algorithm (FA) is proposed for work enhancement. The FA is introduced and actualized by mimicking the blast procedure of firecrackers. In the FA, two blast (search) forms are utilized and systems for keeping decent variety of sparkles are likewise all around planned. To approve the presentation of the proposed FA, correlation tests were led on nine benchmark test capacities among the FA, the standard PSO (SPSO) and the clonal PSO (CPSO).Design/methodology/approachThe antenna arrays are used to improve the capacity and spectral efficiency of wireless communication system. The latest communication systems use the antenna array technology to improve the spectral efficiency, fill rate and the energy efficiency of the communication system can be enhanced. One of the most important properties of antenna array is beam pattern. A directional main lobe with low side lobe level (SLL) of the beam pattern will reduce the interference and enhance the quality of communication. The classical methods for reducing the side lobe level are differential evolution algorithm and PSO algorithm. In this paper, roused by the eminent swarm conduct of firecrackers, a novel multitude insight calculation called fireworks algorithm (FA) is proposed for work enhancement. The FA is introduced and actualized by mimicking the blast procedure of firecrackers. In the FA, two blast (search) forms are utilized and systems for keeping decent variety of sparkles are likewise all around planned. To approve the presentation of the proposed FA, correlation tests were led on nine benchmark test capacities among the FA, the standard PSO (SPSO) and the clonal PSO (CPSO). It is demonstrated that the FA plainly beats the SPSO and the CPSO in both enhancement exactness and combination speed. The results convey that the side lobe level is reduced to −34.78dB and fill rate is increased to 78.53.FindingsSamples including 16-element LAAs are conducted to verify the optimization performances of the SLL reductions. Simulation results show that the SLLs can be effectively reduced by FA. Moreover, compared with other benchmark algorithms, fireworks has a better performance in terms of the accuracy, the convergence rate and the stability.Research limitations/implicationsWith the use of algorithms radiation is prone to noise one way or other. Even with any optimizations we cannot expect radiation to be ideal. Power dissipation or electro magnetic interference is bound to happen, but the use of optimization algorithms tries to reduce them to the extent that is possible.Practical implications16-element linear antenna array is available with latest versions of Matlab.Social implicationsThe latest technologies and emerging developments in the field of communication and with exponential growth in users the capacity of communication system has bottlenecks. The antenna arrays are used to improve the capacity and spectral efficiency of wireless communication system. The latest communication systems use the antenna array technology which is to improve the spectral efficiency, fill rate and the energy efficiency of the communication system can be enhanced.Originality/valueBy using FA, the fill rate is increased to 78.53 and the side lobe level is reduced to 35dB, when compared with the bench mark algorithms.

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Design and Analysis of Coax-Fed U-Slot Antenna for Wireless Applications

Midasala

Bhavanam

Kumar

et al. 2021

IOP Conf. Ser.: Mater. Sci. Eng.

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In this paper a multi frequency U-slot patch antenna for wireless applications is presented. The proposed antenna operates at four frequencies of 1.4GHz, 5.3GHz, 6GHz and 6.9GHz with return loss of -19dB, -22.50dB, -21.05dB, -19.37dB respectively. The antenna is designed with Rogers R04232 substrate with dielectric constant of 3.2 and dielectric loss 0.043 with dimensions of 47 × 54 × 1.5 mm3. Coaxial feed technique is used as a feed to the antenna which is having characteristic impedance 50 ohm. The simulation studies were carried out using Ansys HFSS 15.0 Software.

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Compact metamaterial inspired periwinkle shaped fractal antenna for multiband applications

Cited by 6 publications

References 0 publications

A Novel Approach of Designing Insubstantial AVA operating in UWB for GPR Applications

A Novel Approach of Designing Insubstantial AVA operating in UWB for GPR Applications

An improved peak side lobe reduction method for linear array antenna for military applications

Design and Analysis of Coax-Fed U-Slot Antenna for Wireless Applications

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