A Circular Shaped Sierpinski Carpet Fractal Uwb Monopole Antenna With Band Rejection Capability

Ghatak, Rowdra; Karmakar, Anirban; Поддар, Д. Р.

doi:10.2528/pierc11082801

Cited by 25 publications

(15 citation statements)

References 20 publications

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“…However this approach increases the circuit dimension. Hence to simplify the design and meet the band pass characteristics, slots can be cut in the patch and ground plane [5][6][7]. In this paper an elliptical shaped monopole Antenna with Triple band notch characteristics is proposed.…”

Section: Introductionmentioning

confidence: 99%

A planar elliptical shaped UWB antenna with triple band notch characteristics using hybrid fractal slots

Goswami¹,

Pal

Ghatak

2013

2013 IEEE Applied Electromagnetics Conference (AEMC)

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A planar CPW-fed ultra wideband (UWB) monopole antenna with triple band notch characteristics is presented in this paper. A combination of Moore curve and Euclidean curve to create a hybrid fractal slot that is etched out from the radiator results in creating band notches centered at 5.5GHz and 8.1GHz. The band notch centered at 6.8GHz is obtained by Moore fractal slots etched from the ground planes. The impedance bandwidth of the proposed antenna covers frequency range from 2.8GHz to 12 GHz. The simulated peak gain is 4 dBi. The group delay profile is almost linear within the passband. Stable radiation patterns are observed within the operating range.

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Section: Introductionmentioning

confidence: 99%

A planar elliptical shaped UWB antenna with triple band notch characteristics using hybrid fractal slots

Goswami¹,

Pal

Ghatak

2013

2013 IEEE Applied Electromagnetics Conference (AEMC)

Self Cite

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“…From Table 3 it is found that the geometry offers the maximum impedance bandwidth of 124%. Also, the defected ground behind the monopole geometries offer a wide impedance bandwidth [14][15][16][17], in this work we have included a finite ground of size equal to L g x W s . Width of the ground is chosen equal to the substrate width and length is chosen such that it covers only feed line of the monopole antenna.…”

Section: Effect Of Radius and Ground Dimensionsmentioning

confidence: 99%

A Slotted Circular Monopole Antenna for Wireless Applications

Dandime¹,

Kasabegoudar

2014

WCMC

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Abstract:In this paper, a compact slotted circular monopole antenna with spike shaped slots embedded in it is presented. Also, the proposed antenna has ground length limited to 33% of substrate length. This ground is provided on the back side of the antenna geometry to excite the antenna by microstrip line feed. A slotted circular patch element will be achieved by subtracting 45 degrees rotated square patch of 12mm x 12mm, and then by proper scaling. In this study the geometry is scaled separately by 60%, 40%, 20%, and finally the resultant is obtained by uniting them. This final geometry offers an ultra wide band operation. The overall size of the antenna is 30mm×32.4mm×1.6mm including finite ground feeding mechanism. The antenna operates in the frequency range from 2.5-15GHz covering FCC defined UWB band with more than 130% impedance bandwidth. Stable omni-directional radiation patterns in the desired frequency band have been obtained. Measured data fairly agree with the simulated results.

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“…With these exquisite structures, fractal is able to yield more ideal diversiform current distribution, so a fractal-shaped antenna generally has better radiation properties than Euclidean counterparts. Thus far, almost all fractal antennas comprise fractal geometries with straight segments or rectilinearly-edged blocks, such as Koch curve series [13][14][15], Minkowski curve [16], and Sierpinski Carpet series [8,[17][18][19][20]. Naturally, we conceive the idea of fabricating a fractal antenna with curved elements, such as circular or elliptical arc with hope of further enhancing performances -bandwidth, directivity, and gain.…”

Section: Introductionmentioning

confidence: 99%

Circularly Arced Koch Fractal Multiband Multimode Monopole Antenna

Li¹,

Mao²

2013

PIER

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Abstract-Circularly arced Koch fractal curve (CAKC) is originally proposed. Then, a novel wire dipole is formed with K i -iterated CAKC. The dipole is experimentally studied for fractal electrical characteristics revealing. It manifests many unique properties, such as multiband resonance at odd times of half-wavelength. In particular, it unprecedentedly presents normal mode (0.5 · λ) and axial mode (1.5 · λ) simultaneously. Thus, K 2 CAKC wire is configured into folded monopole with circular disc ground for omni-directional and directive radiation. Five matched bands (|S 11 | ≤ −10 dB) are obtained within 1 GHz-10 GHz, of which f 1 = 1.31 GHz, f 2 = 3.14 GHz, f 3 = 3.63 GHz, f 4 = 4.65 GHz, and f 5 = 7.71 GHz. Compared with straight wire monopole (0.25 · λ), this fractal monopole shows 31% height reduction. It has dipole-like patterns at f 1 and f 2 , endfire patterns at f 3 and f 4 with high gain (10 dBi), and off-endfire patterns at f 5 . Moreover, the fractal antenna possesses compactness, lightweight, simplicity, and low cost. So, it is an attractive candidate for multiband and multifunction antennas, such as satellite antennas, of which omnidirectional normal mode and directive axial mode are needed for beaconing and communication respectively.

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A Circular Shaped Sierpinski Carpet Fractal Uwb Monopole Antenna With Band Rejection Capability

Cited by 25 publications

References 20 publications

A planar elliptical shaped UWB antenna with triple band notch characteristics using hybrid fractal slots

A planar elliptical shaped UWB antenna with triple band notch characteristics using hybrid fractal slots

A Slotted Circular Monopole Antenna for Wireless Applications

Circularly Arced Koch Fractal Multiband Multimode Monopole Antenna

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