General

How does a fractal antenna work?

How does a fractal antenna work?

A fractal antenna is an antenna that uses a fractal, self-similar design to maximize the effective length, or increase the perimeter (on inside sections or the outer structure), of material that can receive or transmit electromagnetic radiation within a given total surface area or volume.

How are fractals used?

Fractals are used to model soil erosion and to analyze seismic patterns as well. Seeing that so many facets of mother nature exhibit fractal properties, maybe the whole world around us is a fractal after all! Actually, the most useful use of fractals in computer science is the fractal image compression.

Who invented fractal antenna?

Dr. Nathan Cohen
Invented in 1988 by our founder Dr. Nathan Cohen, fractal antennas have become globally accepted as the highest performing antenna elements available.

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What is fractal object?

Simply put, a fractal is a geometric object that is similar to itself on all scales. If you zoom in on a fractal object it will look similar or exactly like the original shape. This property is called self-similarity. The property of self-similarity or scaling is closely related to the notion of dimension.

Where are patch antennas used?

The patch antenna is mainly practical at microwave frequencies, at which wavelengths are short enough that the patches are conveniently small. It is widely used in portable wireless devices because of the ease of fabricating it on printed circuit boards.

How have fractals changed the world?

The fractal mathematics Mandelbrot pioneered, together with the related field of chaos theory, lifts the veil on the hidden beauty of the world. It inspired scientists in many disciplines – including cosmology, medicine, engineering and genetics – and artists and musicians, too.

How are fractals used in cell phones?

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Fractal antennas allow phones to process the transmission of a wider range of electromagnetic frequencies and reduce the total number of antennas required. The fractal used in cell phones today is called the sierpinski carpet, which is a plane fractal first described by Wacław Sierpiński in 1916.

What does a fractal look like?

A fractal is a never-ending pattern. Fractals are infinitely complex patterns that are self-similar across different scales. Driven by recursion, fractals are images of dynamic systems – the pictures of Chaos. Geometrically, they exist in between our familiar dimensions.

What properties does a fractal possess?

A fractal often has the following features:

  • It has a fine structure at arbitrarily small scales.
  • It is too irregular to be easily described in traditional Euclidean geometric language.
  • It is self-similar (at least approximately or stochastically).

Why is DNA a fractal antenna?

The wide frequency range of interaction with EMF is the functional characteristic of a fractal antenna, and DNA appears to possess the two structural characteristics of fractal antennas, electronic conduction and self symmetry. These properties contribute to greater reactivity of DNA with EMF in the …

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Are fractals worth the hype?

Just one ham’s opinion: fractals are mostly hype. To create a radio wave an electron must be accelerated through space. If you reduce the available space, a weaker wave must result, and therefore compact antennas are always inferior. Always!

What is the difference between a fractal antenna and a monopole?

Fractal antenna are mostly just prettier space filling curves for making meanderlines that act as slow wave structures by packing long lengths of conductive path into an electrically small form factor. A closely spaced simple meanderline monopole is better than any fractal monopole.

Can DNA be an antenna for electromagnetic fields?

Purpose: To review the responses of deoxyribonucleic acid (DNA) to electromagnetic fields (EMF) in different frequency ranges, and characterise the properties of DNA as an antenna.