A Compact UWB Koch Fractal Antenna for UWB Antenna Array Applications

Tripathi, Shrivishal; Mohan, Akhilesh; Yadav, Sandeep

doi:10.1007/s11277-016-3613-1

Cited by 21 publications

(9 citation statements)

References 20 publications

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“…1% distribution level. Furthermore, in order to calculate the effective diversity gain (EDG), DG multiplies with the total antenna efficiency 26 . The calculated value of EDG is 7.41 which is given in Table 2.…”

Section: Resultsmentioning

confidence: 99%

Design and analysis of high isolated super compact 2 × 2 MIMO antenna for WLAN application

Kaur

Singh

2021

Int J RF Microw Comput Aided Eng

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In this article, a DGS structure is applied to enhance the inter‐port isolation of super compact 2 × 2 MIMO antenna. Each element of MIMO antenna configuration is designed using a planar inverted‐F antenna (PIFA) having dimensions 7 × 7 × 0.8 mm3 and elevated at 2.8 mm from the ground plane of dimensions 100 × 50 × 0.8 mm3 (comparable to the size of mobile handsets). The proposed antenna operates from 5.2 to 6 GHz resonating at 5.65 GHz which is suitable for WLAN applications. The proposed design with and without the isolation enhancement technique is resonating at 5.65 GHz. Therefore, the proposed DGS structure is acting as a perfect isolator without affecting the reflection coefficient of the MIMO antenna configuration. It provides high isolation enhancement from 12 to 25 dB at the resonance frequency. All the diversity parameters of the MIMO configuration are calculated and found within the desirable limits. Thus, it is found that the proposed antenna is well suited for modern wireless applications (WLAN). The radiation performances such as 2D and 3D patterns, total antenna efficiency, and peak realized gain are calculated and analyzed. Finally, a prototype is fabricated and validated experimentally.

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Section: Resultsmentioning

confidence: 99%

Design and analysis of high isolated super compact 2 × 2 MIMO antenna for WLAN application

Kaur

Singh

2021

Int J RF Microw Comput Aided Eng

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“…The fractal geometry shape is used as antenna shapes instead of the euclidean geometries because of its space filling property, also, this fractal geometry is used to obtain the multi-band operation and miniaturization [12]- [14]. The property of space filling in a small area improves the electrical path length of the designed antenna [15]. Generally, the fractal geometry is applied into the patch and it is added in the antenna for designing the fractal antenna which is used to obtain the compact, small side lobe arrays and higher gain aerials [16]- [17].…”

Section: Introductionmentioning

confidence: 99%

Sierpinski carpet fractal monopole antenna for ultra-wideband applications

Kumar¹,

Jayappa

2022

IJECE

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Microstrip antenna is broadly used in the modern communication system due to its significant features such as light weight, inexpensive, low profile, and ease of integration with radio frequency devices. The fractal shape is applied in antenna geometry to obtain the ultra-wideband antennas. In this paper, the sierpinski carpet fractal monopole antenna (SCFMA) is developed for base case, first iteration and second iteration to obtain the wideband based on its space filling and self-similar characteristics. The dimension of the monopole patch size is optimized to minimize the overall dimension of the fractal antenna. Moreover, the optimized planar structure is proposed using the microstrip line feed. The monopole antenna is mounted on the FR4 substrate with the thickness of 1.6 mm with loss tangent of 0.02 and relative permittivity of 4.4. The performance of this SCFMA is analyzed in terms of area, bandwidth, return loss, voltage standing wave ratio, radiation pattern and gain. The proposed fractal antenna achieves three different bandwidth ranges such as 2.6-4.0 GHz, 2.5-4.3 GHz and 2.4-4.4 GHz for base case, first and second iteration respectively. The proposed SCFMA is compared with existing fractal antennas to prove the efficiency of the SCFMA design. The area of the SCFMA is 25×20 mm<sup>2</sup>, which is less when compared to the existing fractal antennas.

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“…Space filling property helps to reduce the size of antenna, that is, miniaturization of antenna by improving the effective permeability and permittivity of the substrate, 10,11 whereas, self-similarity is useful to attain the multiband/wideband characteristics. 12,13 The most common geometries which are used in designing of FAs are Sierpinski Gasket/Carpet, [14][15][16][17][18] Giuseppe Peano, [19][20][21][22][23] Minkowski, [24][25][26][27][28] Koch, [29][30][31][32][33] Hilbert, [34][35][36][37][38] Meander, [39][40][41][42][43] and so on. Apart from this, other fractal geometries are Amer and Sunflower fractal.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of hybrid fractal antennas: A review

Sharma

Bhatia

2021

Int J RF Microw Comput Aided Eng

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The comprehensive review of hybrid fractal antenna (HFA) has been presented in this article. Distinguished researchers have designed, analyzed, and investigated numerous types of HFA's as per the requirement of the market. Firstly, it gives introduction about the fractal antennas (FAs) along with the need of integration of the fractal geometries then research motivation. The extensive literature survey has been divided into three different parts as, fusion of same type of fractal geometries, amalgamation of two distinct fractal geometries and concoction of three different fractal geometries, further, the comparative analysis among these HFA's has been made on the basis of their size, geometries used for designing, number of resonant frequency bands, gain, bandwidth, radiation efficiency, circular polarization, and their applications. The juxtaposition among different HFA's has also been delineated in tabular form for more limpidity along with the findings of individual research article. The challenges faced by researchers while designing the antennas are also being portrayed in this article. This review may be supportive for the novices to carry out their research on HFA as such type of comparative analysis on HFA's is not existing in the open state of art literature as per best of authors knowledge.

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A Compact UWB Koch Fractal Antenna for UWB Antenna Array Applications

Cited by 21 publications

References 20 publications

Design and analysis of high isolated super compact 2 × 2 MIMO antenna for WLAN application

Design and analysis of high isolated super compact 2 × 2 MIMO antenna for WLAN application

Sierpinski carpet fractal monopole antenna for ultra-wideband applications

Comparative analysis of hybrid fractal antennas: A review

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