Results 11 to 20 of about 230,808 (236)
Multimode and Multiband Microstrip Antennas [PDF]
, 2007 This thesis describes original work on the broadband and multiband matching of microstrip patch antennas. Microstrip patch antennas suffer from many constraints on their performance. One major restriction is their narrow impedance bandwidth.
Abunjaileh, Alaa Ibrahim
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On the 5G Communications: Fractal-Shaped Antennas for PPDR Applications
Complexity, 2021 In this study, one method of using antennas based on fractals to cover few kinds of public protection and disaster relief (PPDR) communications was presented.
Mihai-Virgil Nichita +3 more
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Fractals: An Eclectic Survey, Part II
Fractal and Fractional, 2022 Fractals are geometric shapes and patterns that can describe the roughness (or irregularity) present in almost every object in nature. Many fractals may repeat their geometry at smaller or larger scales.
Akhlaq Husain +3 more
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Lacunarity of Fractal Superlattices: a Remote Estimation using Wavelets [PDF]
, 2005 The lacunarity provides a useful parameter for describing the distribution of gap sizes in discrete self-similar (fractal) superlattices and is used in addition to the similarity dimension to describe fractals.
Jaggard, Dwight L. +3 more
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Impact of a purina fractal array geometry on beamforming performance and complexity [PDF]
, 2013 This paper investigates the possible benefits of using a Purina fractal array for beamforming, since this particular fractal has recently been suggested as the flight formation for a fractionated space craft.
Weiss, Stephan +5 more
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High‐directivity microstrip antenna with Mandelbrot fractal boundary [PDF]
, 2018 High-directivity is a needed feature for small base station antennas in order to provide coverage to a certaingeographic area. For wireless communications, arrays of microstrip antennas are frequently used as radiating elements due totheir thin profile ...
Sungtek Kahng +9 more
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A Multiband Fractal Dipole Antenna for Wireless Communication Applications [PDF]
Engineering and Technology Journal, 2010 mmunication applications. The proposed fractal antenna design is based onfractal geometry of the second level tent function transformation. Due to theresulting geometrical structures of a fractal tent function curve depend on thestarting angles of the ...
Jawad K. Ali +2 more
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Fibonacci fractal tree antennas [PDF]
, 2004 Fractal geometry is first defined by Benoit Mandelbrot. A fractal structure is generated with an iterative procedure of a simple initiator by replicating many times at different scales, positions and directions.
Özbakış, Başak
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Design and Simulation of RFID Aperture Coupled Fractal Antennas
International Journal of Engineering Business Management, 2012 Different fractal antennas based on aperture coupled feeding technique are studied, analysed and compared for size reduction, low profile, and good omini-dirctional pattern suitable for RFID applications.
Dhrgham. K. Naji +2 more
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Sierpiński fractal plasmonic antenna: a fractal abstraction of the plasmonic bowtie antenna
Optics Express, 2011 A new class of bowtie antennas with Sierpiński fractal features is proposed for sensing molecular vibration modes in the near- to mid-infrared. These antennas offer a compact device footprint and an enhanced confinement factor compared to a bowtie antenna.
Shawn, Sederberg, A Y, Elezzabi
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