The fractal random array

Kim, Y.; Jaggard, D.L.

doi:10.1109/proc.1986.13617

Cited by 146 publications

(54 citation statements)

References 1 publication

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“…Then, fractal theory was applied in various field of science and engineering [1]. In 1986, Kim and Jaggard [4] first time put forward that the theory of fractal could be implemented to the design of antenna and its array shown in Fig. 2.…”

Section: Literature Reviewmentioning

confidence: 99%

Study of Fractal Tree Antenna for Multiband Applications

Khobragade

Nalbalwar

Nandgaonkar

2017

Proceedings of the International Conference on Communication and Signal Processing 2016 (ICCASP 2016)

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Abstract. Present day is witnessing a very rapid growth of wireless communication, for which antenna with very large bandwidth are in strong demand, so that various application are covered with fewer or preferably with single antenna. Fractals are profoundly intricate shapes that are easy to define. Fractals are space-filling contours, electrically large features can be efficiently packed into small areas. Fractal tree structures can be utilise to enhance the performance of the antenna such as widening the frequency band while reducing the size of an antenna. This paper summarize the different kind of tree design structure, development process, current research and application of the fractal tree antenna.

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Section: Literature Reviewmentioning

confidence: 99%

Study of Fractal Tree Antenna for Multiband Applications

Khobragade

Nalbalwar

Nandgaonkar

2017

Proceedings of the International Conference on Communication and Signal Processing 2016 (ICCASP 2016)

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“…Put (6), (7) into (22), then simplify the expression as (11), then we will get the control equation of current for compensate the positional error:…”

Section: Lobe Level Compensationmentioning

confidence: 99%

“…They have also demonstrated that when applied to periodic arrays, the phase correction algorithm is not effective in eliminating grating lobes. In [19][20][21][22], they have proposed that by combining phase compensation with optimized sparse aircraft formations, one can achieve high radiation pattern resolution in a micro-UAV based radar imaging application. However, none of these literatures shows how to maintain SLL to keep the performance of antenna arrays.…”

Section: Introductionmentioning

confidence: 99%

Positional Error Compensation and SLL Control of Miniature Deep Space Probe Based Antenna Arrays

Xu¹,

Zhang²,

Yu³

2014

PIER M

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Abstract-As the boundary of the universe which is explored by human expanded, antenna used in deep space exploration (DSE) could become too large to carry and deploy, miniature deep space probe based antenna arrays (MDSPBAA) provide a novel solution for the problem. This kind of antenna array may lower the difficulty of sending antenna to the area where is tend to be detected and may also monitor cost effectively in the work of deep space detect. However, turbulence and positional errors provide a challenging operational environment when it comes to the implementation of these systems. Turbulence will deteriorate SLL badly. In some cases, the level could be changed by almost 10 dB. Therefore, a SLL control algorithm is presented, which could well compensate the SLL which is caused by positional error.

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“…These aperiodically-ordered geometries represent the "gray zone" that separates perfect periodicity from absolute randomness. In electromagnetics (EM) engineering, random or deterministic aperiodic geometries are usually used within the framework of antenna array thinning [4][5][6][7], whereas multiperiod configurations have recently been proposed for optimizing the passband/stopband characteristics of frequency selective surfaces [8] and photonic bandgap devices [9].…”

Section: Introductionmentioning

confidence: 99%

Suppression of Backscattering From 2-D Aperiodically-Ordered Thinned Patch Array Using Rudin-Shapiro Sequences

Sallam¹,

Attiya²

2018

PIER M

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Abstract-The discovery of "quasi-crystals," whose X-ray diffraction patterns reveal certain unusual features which do not conform with spatial periodicity, has motivated studies of the wave-dynamical implications of "aperiodic order." This paper discusses various aperiodic configurations generated by Rudin-Shapiro (RS) sequences. These RS sequences constitute ones of the simplest conceivable examples of deterministic aperiodic geometries featuring random-like (dis)order. The scattering properties of aperiodically-ordered thinned 2-D patch arrays based on RS sequences are analyzed by using physical optics approximation. Compared to a periodic case, RS-based antenna array is found to have a substantial reduction in the magnitude of the backscattering component of the scattered signal with half of the elements and the same magnitude of specular reflection. This property is verified by illustrative numerical parametric studies.

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The fractal random array

Cited by 146 publications

References 1 publication

Study of Fractal Tree Antenna for Multiband Applications

Study of Fractal Tree Antenna for Multiband Applications

Positional Error Compensation and SLL Control of Miniature Deep Space Probe Based Antenna Arrays

Suppression of Backscattering From 2-D Aperiodically-Ordered Thinned Patch Array Using Rudin-Shapiro Sequences

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