Fracton vibration modes in the Sierpinski microstrip patch antenna

Borja, C.; Romeu, J.

doi:10.1109/aps.2001.960171

Cited by 7 publications

(7 citation statements)

References 6 publications

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“…So, the ratio of each iterative could be depicted as (9) is also a constant factor of electrical length, but it is quite approximate to . When can resonate at higher order scale factor part of the entire fractal lateral sides, and the ratio of each iterative could be expressed as (10) We can conclude that the fractal bow-tie dipole resonates in multiband at scale factor rigorously only when .…”

Section: -Db Bandwidth and Gain Of Each Resonant Frequency Of K K Kmentioning

confidence: 99%

A Koch-Like Sided Fractal Bow-Tie Dipole Antenna

Mao

2012

IEEE Trans. Antennas Propagat.

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A novel Koch-like fractal curve is proposed to transform ultra-wideband (UWB) bow-tie into so called Koch-like sided fractal bow-tie dipole. A small isosceles triangle is cut off from center of each side of the initial isosceles triangle, then the procedure iterates along the sides like Koch curve does, forming the Koch-like fractal bow-tie geometry. The fractal bow-tie of each iterative is investigated without feedline in free space for fractal trait unveiling first, followed by detailed expansion upon the four-iterated pragmatic fractal bow-tie dipole fed by 50-coaxial SMA connector through coplanar stripline (CPS) and comparison with Sierpinski gasket. The fractal bow-tie dipole can operate in multiband with moderate gain (3.5-7 dBi) and high efficiency (60%-80%), which is corresponding to certain shape parameters, such as notch ratio , notch angle , and base angles of the isosceles triangle. Compared with conventional bow-tie dipole and Sierpinski gasket with the same size, this fractal-like antenna has almost the same operating properties in low frequency and better radiation pattern in high frequency in multi-band operation, which makes it a better candidate for applications of PCS, WLAN, WiFi, WiMAX, and other communication systems.

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Section: -Db Bandwidth and Gain Of Each Resonant Frequency Of K K Kmentioning

confidence: 99%

A Koch-Like Sided Fractal Bow-Tie Dipole Antenna

Mao

2012

IEEE Trans. Antennas Propagat.

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“…Therefore, it is expected that fractal boundary microstrip antennas will exhibit vibration modes similar to the ones of the fractal drum. While some preliminary results were discussed by the authors in [12]- [14], this paper will provide an in-depth insight to the behavior of the fractal boundary microstrip patch antenna in the fundamental mode and in the localized modes. In Section II, a description of the geometry of the Koch island or "snowflake" microstrip patch antenna is presented.…”

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confidence: 99%

On the behavior of koch island fractal boundary microstrip patch antenna

Borja

Romeu

2003

IEEE Trans. Antennas Propagat.

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123

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Abstract-The properties of the Koch island fractal boundary microstrip patch antenna are presented. The behavior at the fundamental mode and the existence of high-order modes that exhibit localized current density distributions is discussed. The main features are the size reduction of the patch resonating at the fundamental frequency when compared to Euclidean-shaped patches, and the application of localized modes in designing microstrip patch antennas with directive patterns.

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“…Fractal antenna uses self similar structure to maximize the length or increase the perimeter on inside sections or the outer structure of the material that can receive or transmit electromagnetic radiations within a given total surface area or volume [6]. Certain fractals represent multiband behavior and space-filling properties as reduction in antenna size [7][8][9][10][11]. In the present work, the bandwidth of microstrip antenna is enhanced to 47.97% .The fourth iterated antenna is shown in Figure 1.The frequency band of this antenna is between 1.751Ghz to 2.856Ghz which is suitable for WLAN, WiMAX and Bluetooth applications [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…Certain fractals represent multiband behavior and space-filling properties as reduction in antenna size [7][8][9][10][11]. In the present work, the bandwidth of microstrip antenna is enhanced to 47.97% .The fourth iterated antenna is shown in Figure 1.The frequency band of this antenna is between 1.751Ghz to 2.856Ghz which is suitable for WLAN, WiMAX and Bluetooth applications [9][10][11][12]. This antenna has been designed on glass epoxy substrate (ε r =4.4) [13].The substrate material has large effect in determining the size and bandwidth of an antenna.…”

Section: Introductionmentioning

confidence: 99%

DESIGN OF HEXAGONAL FRACTAL ANTENNA FOR WLAN/ WIMAX & BLUETOOTH APPLICATIONS

Yadav¹

2014

IJRET

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In this paper, hexagonal fractal antenna is investigated for wide band applications. The proposed antenna is made by removing the equilateral triangles of required dimensions. Modified line feed is used for designing the antenna to achieve wide bandwidth ranging from 1.751Ghz to 2.856Ghz with a bandwidth 47.97%.In the present work size reduction has been achieved. It offers gain of 2.88dBi, directivity of 3.12dBi and antenna efficiency of 94.57% at 1.95Ghz resonant frequency. This antenna is suitable for WLAN, WiMAX and Bluetooth applications. The proposed antenna is simulated by IE3D Zeland simulation software based on method of moments.

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Fracton vibration modes in the Sierpinski microstrip patch antenna

Cited by 7 publications

References 6 publications

A Koch-Like Sided Fractal Bow-Tie Dipole Antenna

A Koch-Like Sided Fractal Bow-Tie Dipole Antenna

On the behavior of koch island fractal boundary microstrip patch antenna

DESIGN OF HEXAGONAL FRACTAL ANTENNA FOR WLAN/ WIMAX & BLUETOOTH APPLICATIONS

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