alexa Mathematical Dodecahed Microstrip Antenna Network Modeling for Femto Satellite | Open Access Journals
ISSN: 2168-9792
Journal of Aeronautics & Aerospace Engineering
Make the best use of Scientific Research and information from our 700+ peer reviewed, Open Access Journals that operates with the help of 50,000+ Editorial Board Members and esteemed reviewers and 1000+ Scientific associations in Medical, Clinical, Pharmaceutical, Engineering, Technology and Management Fields.
Meet Inspiring Speakers and Experts at our 3000+ Global Conferenceseries Events with over 600+ Conferences, 1200+ Symposiums and 1200+ Workshops on
Medical, Pharma, Engineering, Science, Technology and Business

Mathematical Dodecahed Microstrip Antenna Network Modeling for Femto Satellite

Hamrouni C1* and Hamza R2

1Institut Supérieure des Etudes Technologiques de Gabès) - ISET Gabes, Tunisia

2University of Manar II, Sup’com, Tunis, Tunisia

*Corresponding Author:
Hamrouni C
Institut Supérieure des Etudes Technologiques
de Gabès) - ISET Gabes, Tunisia
Tel: +216 75 290 053
E-mail: [email protected]

Received Date: May 16, 2017 Accepted Date: June 30, 2017 Published Date: July 06, 2017

Citation: Hamrouni C, Hamza R (2017) Mathematical Dodecahed Microstrip Antenna Network Modeling for Femto Satellite. J Aeronaut Aerospace Eng 6: 196. doi: 10.4172/2168-9792.1000196

Copyright: ©2017 Hamrouni C, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Visit for more related articles at Journal of Aeronautics & Aerospace Engineering

Abstract

The work focusses on antenna design based on fundamental Electromagnetic radiated element conception and a mathematical Dodecahed Microstrip Antenna Network Modeling for New Ultra Small Satellite (NUSS) development. Proposed solution meets ever increasing demands for improvements in inter station and Femto Satelite disconnection rates, and thus to synthesize the total radio transmission access USS visibility. We develop a new architecture for Dodecahed microstrip antenna elements which present a fundamental component of the overall system solution. The paper demonstrates mathematically: How proposed controlled antenna element combination operates, advanced selection and other related technologies can achieve substantial system performance for new USS generation.

Keywords

Dodecahed; Microstrip antenna network; Modeling; Femto satellite

Abbreviations

ADS: Advanced Design System; DMA: Dodecahedron Microstrip Antenna; FIS: Fuzzy Interference System; NUSS: New Ultra Small Satellite; MAN: Microstrip Antenna Network

Introduction

Ultra-Small Universities researches, that allows researchers to participate and contribute in USS [1,2] development and use various satellite technology and participate in several original scientific experimental implementations that results researches opting to test new technologies before they are explored in space. In this context, we study the development of a 3D structure with dodecahed microstrip antenna [3] network modeling for new USS development. Proposed new architecture permits a full visibility of USS with corresponds station [4]. New USS technologies appeared ten years ago, and hundreds of copies have already been in orbit. The Femto Satellite is a USS weighing less than one hundred grams and operating with some mW of Electric power consumption [5]. Accurate standard was established, called N–Prize, which defined the constraints of Femto Satellite in order to classify the USS and determine its mission in Leo [6]. The work proposes a solution for maximizing USS visibility with corresponding station, we develop a new Dodecahed Microstrip Antenna network. To synthesize a total visibility USS radio transmission access solution capable of meeting the ever-increasing demands for improvements inter station/ Femto Satellite disconnection rates. Proposed architecture uses antenna element of the Dodecahed MA as a fundamental component of this overall system solution.

Development of Dodecahedron MAN

Proposed dodecahedron architecture for femto satellite

In geometry, a dodecahedron is any polyhedron with twelve flat faces. Dodeca is a prefix meaning "twelve". But usually a regular dodecahedron is meant: a Platonic solid. It is composed of 12 regular pentagonal faces, with three meeting at each vertex. It has 20 vertices, 30 edges as well. Its dual polyhedron is the Icosahedron. The dodecahedron, described by Buckminster Fuller as 6 pentagonal spheres, is a polyhedron of which is composed entirely of regular pentagons. We have done this mathematical analysis inorder to build this polyhedron.

Studied mathematical dodecahedron volume

In order to determine the volume of the dodecahedron, we will use the pyramid method. There are 12 pentagonal pyramids, one for each face, each pyramid beginning at O. The volume of any n-sided pyramid is 1/3 * area of base * pyramid height (Figure 1).

aeronautics-aerospace-engineering-Pentagon

Figure 1: Pentagon is the area of the 5 triangles.

First, we need to get the area of the base, which is the area of each pentagonal face, and the area of the pentagon is the area of the 5 triangles which compose it.

equation

** The height of the pyramid, OU

To do that, we need to find the distance from O to a vertex, let’s say, OH. This distance will be the hypotenuse of the right triangle OUH. Since we already know UH, we can then get OU from the Pythagorean Theorem. Imagine a sphere surrounding the dodecahedron and touching all of its vertices. OH is just the radius of the enclosing sphere. If you look at Figure 2, HOZ=GON=Diameter. There is a line through HOZ to show the diameter.

aeronautics-aerospace-engineering-Rectangle

Figure 2: Rectangle MIFK.

Now, if we look at the rectangle MIFK. The diagonal of it, MF, is also a diameter (MF=HZ). Notice that the long sides of the rectangle, MK, and IF, are diagonals of the two large pentagons ADMQK and FEIRP. We know that the diagonal of a pentagon is Φ* side of pentagon.

We also can see from Figure 2 that the sides of the large pentagons themselves are diagonals of the pentagonal faces of the dodecahedron DA is a diagonal of the face ABCDE). That means each side of the large pentagons is Φ * s and that MK (any of the diagonals of a large pentagon) is Φ* Φ * s.

So MK=Φ ² s.

In fact, the dodecahedron is composed of rectangles divided in Extreme and Mean Ratio. In the icosahedron, we found these rectangles to Φ rectangles.

In the dodecahedron, they are Φ rectangles.

In rectangle MKIF, MK=IF=Φ² s, MI=KF=s, as shown in Figure 3.

aeronautics-aerospace-engineering-shown-Rectangle

Figure 3: MK=IF=Φ² s, MI=KF=s shown in rectangle MKIF.

There are 30 sides to the dodecahedron, and therefore 15 different Φ² rectangles. All of this as explanation of finding the distance OH from Figure 1, and because, we do not use a trigonometry, we need OH in order to get the pyramid height, OU in Figure 2. Notice that MHFZ is also a Φ ² rectangle and that HZ is the diagonal of it. We find HZ, then OH is just 1/2 of that.

Diameter2 = HZ2= MZ2+ HM2=Φ 4 +1= (3 Φ+2) +1= 3 Φ +3 = 3 Φ2

equation

equation

Now, we find OU, the height of the pyramid (Figure 4). From area of pentagon, we know the distance mid-face to any vertex of a pentagon. So,

aeronautics-aerospace-engineering-Dodecahedron

Figure 4: Dodecahedron central angle.

equation

equation

The volume of 1 pyramid =1/3 * area base * pyramid height

equation

The volume of dodecahedron =12 * the volume of 1 pyramid= equation

Or,

The volume of dodecahedron

equation

Note that (from Figure 1) equation

Dodecahedron Volume Determination

Mathematically, it is equals to:

The surface area of the dodecahedron =12 equationequation

Or,

The surface area of the dodecahedron = equation

Let’s determine the central angle of the proposed dodecahedron, for example angle HOC

HC=side of dodecahedron, so equation

equation

Since each face of the dodecahedron is a pentagon, the surface angle=180°. For evaluation of distance from the centroid to any midedge, while we're at it, as in Figure 4, let’s get OX, the distance from the centroid to any mid- edge.

equation

Dodecahedron Dihedral Angle Study

The dihedral angle is AXH. AH is one of the long sides of any of the 15 Φ² rectangles which compose the dodecahedron. AX and HX are the height h of the pentagon.

We know from the characteristic of the pentagon that the height h of the pentagon is:

equation

We know from Figure 3 that AH is Φ² s,

equation

equation

equation so, to summarize, we obtained:

 

equation

Implementation of FL on Dodecahedron MA model

Now let us look in more detail of a fuzzy controller for the antenna network. The input of the controller is the dozen signal (signal_1, signal_2…signal_12). It is admitted that the controller named its inputs at moment of receiving the signals. So, the first signal received is taken as signal_1, the second as signal_2 and so on. The output or decision of the controller is a constant result (sugeno) representing the decision between the 12 antenna existed. The linguistic labels are modelled as fuzzy subsets of signal_1, signal_2…signal_12 (Figures 5 and 6).

aeronautics-aerospace-engineering-dihedral-angle

Figure 5: Dodecahedron dihedral angle study.

aeronautics-aerospace-engineering-Fuzzy-logic

Figure 6: Fuzzy logic models.

The Particular choice of membership functions chosen to represent the linguistic labels is not arbitrary. One of the adjustments made during testing of the control system will be experimenting with different membership functions, that is, changing the parameters of these triangular functions The FIS Editor displays as Figure 7 general information about a fuzzy inference system. There is a simple diagram at the top that shows the names of each input variable on the left, and those of each output variable on the right. The sample membership functions shown in the boxes are just icons and do not depict the actual shapes of the membership functions. Used FIS Structure as Figure 5 is the MatLab object that contains all the fuzzy inference system information. This structure is stored inside each GUI tool.

aeronautics-aerospace-engineering-Upper-part

Figure 7: Upper part of FIS editor.

Access functions such as getfisand setfis make it easy to examine this structure. All the information for a given Fuzzy Interference System is contained in the FIS structure, including variable names, membership function definitions, etc. Successful simulation result on Microstrip Antenna element, resonance frequency equals 2.8 Ghz (S band) as presented in Figures 8 and 9.

aeronautics-aerospace-engineering-Structure

Figure 8: Structure of fuzzy inference system.

aeronautics-aerospace-engineering-Structure

Figure 9: Antenna element of dodecahedron MA model simulation results.

Conclusion

The Dodecahedron Microstrip Antenna (DMA) developed model is mainly studied to ensure the need of full visibility in 360 degrees. By mathematical modelling, we obtained a spherical antenna network form the element is studied by ADS tools, and successful results are obtained. We can externally control the resonance frequency by varying the tensor permeability which is a function of the magnetization of used materials for the Dodecahedron antenna network.

Acknowledgements

The Authors would like to acknowledge the financial support of this work by grants from General Direction of Scientific Research (DGRST), Tunisia, under the ARUB program. We acknowledge also the Professor Elya B. Joffs for his contribution towards the present article.

References

Select your language of interest to view the total content in your interested language
Post your comment

Share This Article

Relevant Topics

Article Usage

  • Total views: 149
  • [From(publication date):
    September-2017 - Nov 20, 2017]
  • Breakdown by view type
  • HTML page views : 116
  • PDF downloads : 33
 

Post your comment

captcha   Reload  Can't read the image? click here to refresh

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri & Aquaculture Journals

Dr. Krish

[email protected]

1-702-714-7001Extn: 9040

Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001Extn: 9040

Clinical Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

Food & Nutrition Journals

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

General Science

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics & Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Materials Science Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Nursing & Health Care Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

Ann Jose

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001Extn: 9042

 
© 2008- 2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords