Sierpinski gasket fractal antenna with defected ground structure (DGS)

Ismail, Khudzir; Ishak, Siti Hasyimah

doi:10.1109/ictc.2012.6387170

Cited by 10 publications

(3 citation statements)

References 6 publications

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“…no. DOI/URL 72 https://doi.org/10.21307/ijssis-2021-007 73 https://doi.org/10.1017/S1759078713000123 74 https://doi.org/10.11113/jt.v78.8777 12 https://doi.org/10.1080/02522667.2020.1715561 75 https://doi.org/10.1109/ICTC.2012.6387170 76 https://doi.org/10.1007/s11277-017-4079-5 77 https://doi.org/10.1109/ICECDS.2017.8389905 78 https://doi.org/10.1016/j.aeue.2012.08.007 79 https://doi.org/10.1155/2018/2084747 80 https://doi.org/10.1002/mop.30489 81 https://doi.org/10.1049/iet-map.2016.0154 82 https://doi.org/10.1007/s10825-018-1194-9 83 https://doi.org/10.1049/iet-map.2016.0110 84 https://doi.org/10.1590/2179-10742018v17i31244 85 https://doi.org/10.1002/mop.30156 86 https://doi.org/10.1016/j.aej.2017.04.001 87 https://doi.org/10.1109/ICCSP.2016.7754104 88 https://doi.org/10.17485/ijst/2015/v8i17/66573 89 https://doi.org/10.1049/iet-map.2016.1098 90 https://doi.org/10.1002/mmce.22058…”

Section: Data Availability Statementmentioning

confidence: 99%

An extensive survey on fractal structures using iterated function system in patch antennas

Ezhumalai

Nagarajan

Balasubramaniyan³

2021

Int J Communication

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Summary Over the last few years, fractal structure has been used in several engineering fields such as surface physics, telecommunication, fluid mechanics, and so forth. In telecommunication, often there is a demand for miniaturized patch antennas with fractal structures because it is capable of handling very high frequencies with its diminutive structure. The space filling capability of the fractal structures is used to effectively distribute the surface current all over the radiating material. Fractal structures have a better size reduction capability which aids a miniaturized antenna design. This article provides a generalized and detailed survey on fractal structures in a Euclidean space using iterated function system (IFS) in patch antennas. There are various techniques to design a fractal structure, namely, IFSs, escape‐time fractals, strange attractors, L‐systems, random fractals, and so forth. IFSs are widely used technique to construct a finite set of construction mapping on a complete metric space. The fractal geometries designed using the technique are Sierpinski carpet and gasket, Koch snowflake, deterministic tree/binary tree, Gosper island, Minkowski island, Cantor set, T‐square, and some space filling fractals. This paper deals with the above given fractal structures with their design expressions and shapes in recent developments and applications mentioned. The fractal geometries are used in MIMO antennas to abridge the mutually coupled radiators and improve the gain and efficiency of the antenna. This paper also analyzes the effects of fractal structures on MIMO antennas and discusses the ascendancy fractal structures by cross‐referencing the significant antenna parameters.

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Section: Data Availability Statementmentioning

confidence: 99%

An extensive survey on fractal structures using iterated function system in patch antennas

Ezhumalai

Nagarajan

Balasubramaniyan³

2021

Int J Communication

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“…Moreover, as the number of iterations of the fractal increases, the total effective electrical length increases with relatively same area, which gives advantages of reduced antenna size and better input impedance matching. This is the reason of further enhancement of return loss bandwidth with the increment of the iterations of fractal in DGS incorporated antenna structure as documented in Table 1 [16]. Here, as the ground plane was defected and Kotch iteration added, the patch radius was reduced to keep the simulated operating frequency constant.…”

Section: Db Return Loss Bandwidthmentioning

confidence: 99%

“…Defected ground structure (DGS) concept has also been used to improve the desired characteristics of the planar antennas [14][15][16][17][18][19][20][21][22][23][24]. DGS can be realised by etching a specific shape in the ground plane of the antenna.…”

Section: Introductionmentioning

confidence: 99%

Design and testing of a compact circularly polarised microstrip antenna with fractal defected ground structure for L‐band applications

Prajapati¹,

Murthy²,

Patnaik³

et al. 2015

IET Microwaves, Antennas & Propagation

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A compact circularly polarised (CP) microstrip antenna for mobile satellite communication band of India (1.492–1.518 GHz) is presented. Two asymmetric length rectangular shape slots, perpendicular to each other are printed on the circular patch for realisation of CP radiation. To improve the performance parameters of patch antenna such as axial ratio (AR) bandwidth, return loss bandwidth, radiation efficiency and so on a new technique of combination of fractal theory and defected ground structure (DGS) is proposed for the first time in design of CP antennas. 44.74% size reduction in patch size, enhancements of 62.73% in AR bandwidth, 70.74% in return loss bandwidth and 4.03% in radiation efficiency is achieved as compared with conventional patch antenna, after incorporation of Koch curve fractal DGS in the ground plane. The performance of the developed antenna has been compared with other available L‐band planar antennas in the literature, and it is found that the developed structure is better one in many aspects. Laboratory prototype of the antenna is fabricated and experimentally measured for cross verifying the simulated results.

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A novel miniaturized band stop filter using fractal type defected ground structure (DGS)

Verma

Rano

Hashmi

2017

2017 IEEE Asia Pacific Microwave Conference (APMC)

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Sierpinski gasket fractal antenna with defected ground structure (DGS)

Cited by 10 publications

References 6 publications

An extensive survey on fractal structures using iterated function system in patch antennas

An extensive survey on fractal structures using iterated function system in patch antennas

Design and testing of a compact circularly polarised microstrip antenna with fractal defected ground structure for L‐band applications

A novel miniaturized band stop filter using fractal type defected ground structure (DGS)

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