A Novel Small-Size Single Patch Microstrip Antenna Based on Koch and Sierpinski Fractal-Shapes

Zhang, Yu; Wang, Guangming; Gao, Xiangjun; Lu, Ke

doi:10.2528/pierl10062803

Cited by 28 publications

(13 citation statements)

References 12 publications

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“…Though patch antennas can be easily manufactured it is not easy to combine high resonance frequency and sufficiently small size, as numerous research studies suggest [18][19][20][21][22][23]. The solution used in the proposed system is a small shorting pin placed at distance d = 8 mm from the patches' feed.…”

Section: Patch Antennasmentioning

confidence: 99%

Phased-Array Near Field Radiometry for Brain Intracranial Applications

Οικονόμου¹,

Karanasiou²,

Uzunoglu³

2010

PIER

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Abstract-During the past decades there has been a tremendous increase throughout the scientific community for developing methods of understanding human brain functionality, as diagnosis and treatment of diseases and malfunctions, could be effectively developed through understanding of how the brain works. In parallel, research effort is driven on minimizing drawbacks of existing imaging techniques including potential risks from radiation and invasive attributes of the imaging methodologies. Towards that direction a new near field radiometry imaging system has been theoretically studied, developed and experimentally tested and all of the aforementioned research phases are herein presented. The system operation principle is based on the fact that human tissues emit chaotic thermal type radiation at temperatures above the absolute zero. Using a phase shifted antenna array system, spatial resolution, detection depth and sensitivity are increased. Combining previous research results, as well as new findings, the capabilities of the constructed system, as well as the possibility of using it as a complementary method for brain imaging are discussed in this paper.

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Section: Patch Antennasmentioning

confidence: 99%

Phased-Array Near Field Radiometry for Brain Intracranial Applications

Οικονόμου¹,

Karanasiou²,

Uzunoglu³

2010

PIER

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“…The single pentagon patch is designed according to the methodology available for microstrip antenna design from the following equations [6]. …”

Section: Koch Embedded Pentagon Cell Analysismentioning

confidence: 99%

Novel Miniaturized Koch Pentagonal Fractal Antenna for Multiband Wireless Applications

Khan¹,

Islam²,

Rashid³

et al. 2013

PIER

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Abstract-A novel reduced size three band Koch Pentagonal fractal antenna is presented. The proposed antenna uses pentagonal shape for the basic fractalization combined with inner sides etched with Koch fractal pattern of the first iteration providing reduction in the overall size of the antenna. For higher order of iterations, more size reduction is achieved, producing equal number of radiation bands. Optimization is done for achieving radiations in the S, C and X bands. Ansoft HFSS, CST Microwave Studio and Solid Works are used for the 3D Modeling, S 11 frequency optimization and radiation pattern calculations. The proposed third iteration fractal configuration is fabricated on Rogers RT5870, and measured results are presented. Size reduction up to 43.26 percent in terms of its overall size and 75.18 percent in terms of copper cladding remaining is achieved for the third iteration proposed fractal antenna in comparison to pentagonal patch antenna operating in the first resonant frequency band.

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“…Fractal rules can be applied to miniature the RF component [9][10][11][12][13][14][15]. In this paper, the microstrip dual-band filter with fractal geometry is demonstrated.…”

Section: Introductionmentioning

confidence: 99%

The Design and Fabrication of a Highly Compact Microstrip Dual-Band Bandpass Filter

Chen¹,

Lin²

2011

PIER

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Abstract-A highly miniaturized 2.45/5.7 GHz dual-band bandpass filter is presented in this paper. It shows that the proposed filter which combines different sizes of open-loop resonators can excite two desired passbands. With the meandered technology and fractal geometry, the overall size is extremely compact compared with the published dual-band bandpass filters. Furthermore, the skirt selectivity of the proposed filter with two transmission zeros locating at both sides of the passbands is much improved. The rejection of the spurious response from 6.7 GHz to 14.5 GHz is successfully suppressed to the level lower than −15 dB. The occupied area of the proposed filter is 9.8 × 8.7 mm 2 . The measurement is in good agreement with the simulation.

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A Novel Small-Size Single Patch Microstrip Antenna Based on Koch and Sierpinski Fractal-Shapes

Cited by 28 publications

References 12 publications

Phased-Array Near Field Radiometry for Brain Intracranial Applications

Phased-Array Near Field Radiometry for Brain Intracranial Applications

Novel Miniaturized Koch Pentagonal Fractal Antenna for Multiband Wireless Applications

The Design and Fabrication of a Highly Compact Microstrip Dual-Band Bandpass Filter

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