What is it about?
The major challenges of fractal array design are the high Side Lobe Level (SLL), the huge number of elements at higher growth stages, and the radiation pattern synthesis. This paper introduces, for the first time, a novel design methodology that combines the unique multi-band features of thinned fractal antenna arrays with the adaptive beamforming requirements, while keeping the number of elements as low as possible.
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Why is it important?
With the proposed approach, the designer can efficiently control both radiation pattern main lobe and nulls, while maintaining the minimzed SLL at multiple frequency bands. The proposed fractal array design is much superior in terms of multi-band frequency operation, array element reduction, and beamforming accuracy. This reveals the effectiveness of the proposed technique as a promising design in smart antenna technology.
Perspectives
I hope this article reveals the great importance of fractal arrays in several multi-band wireless systems such as unmanned aerial vehicles, personal communication systems, and microwave communications applications. Also, the proposed fractal array design can be efficiently employed in multi-band, thinned, low cost, and shaped-beam smart antenna technology.
Ahmed Eltrass
Alexandria University
Read the Original
This page is a summary of: A New Design of Thinned Fractal Antenna Arrays for Adaptive Beam Forming and Side Lobe Reduction , IET Microwaves Antennas & Propagation, November 2017, the Institution of Engineering and Technology (the IET),
DOI: 10.1049/iet-map.2017.0464.
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