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Invasive Weed Optimization (IWO) Algorithm for Control of Nulls and Sidelobes in a Concentric Circular Antenna Array (CCAA)

by Thotakura T. Ramakrishna Satish Raj, P. Krishna Kanth Varma, P.V. Rama Raju
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 126 - Number 3
Year of Publication: 2015
Authors: Thotakura T. Ramakrishna Satish Raj, P. Krishna Kanth Varma, P.V. Rama Raju
10.5120/ijca2015906023

Thotakura T. Ramakrishna Satish Raj, P. Krishna Kanth Varma, P.V. Rama Raju . Invasive Weed Optimization (IWO) Algorithm for Control of Nulls and Sidelobes in a Concentric Circular Antenna Array (CCAA). International Journal of Computer Applications. 126, 3 ( September 2015), 44-49. DOI=10.5120/ijca2015906023

@article{ 10.5120/ijca2015906023,
author = { Thotakura T. Ramakrishna Satish Raj, P. Krishna Kanth Varma, P.V. Rama Raju },
title = { Invasive Weed Optimization (IWO) Algorithm for Control of Nulls and Sidelobes in a Concentric Circular Antenna Array (CCAA) },
journal = { International Journal of Computer Applications },
issue_date = { September 2015 },
volume = { 126 },
number = { 3 },
month = { September },
year = { 2015 },
issn = { 0975-8887 },
pages = { 44-49 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume126/number3/22536-2015906023/ },
doi = { 10.5120/ijca2015906023 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T23:16:31.931789+05:30
%A Thotakura T. Ramakrishna Satish Raj
%A P. Krishna Kanth Varma
%A P.V. Rama Raju
%T Invasive Weed Optimization (IWO) Algorithm for Control of Nulls and Sidelobes in a Concentric Circular Antenna Array (CCAA)
%J International Journal of Computer Applications
%@ 0975-8887
%V 126
%N 3
%P 44-49
%D 2015
%I Foundation of Computer Science (FCS), NY, USA
Abstract

The ever increasing wireless communication research is giving rise to a plethora of new communication techniques. There is also a wide spread increase in the use of existing systems such as mobiles, Wi-Fi, RADARS, Space communications etc. Consequently, the electromagnetic spectrum is getting overcrowded and there is an increase in interference due to use of multiple devices with in a small cluster. So, design of antennas with small sidelobe levels and nulls in interference direction is needed. This paper illustrates the procedure for placing nulls in the interference direction while reducing sidelobe level (SLL) of a CCAA under the constraint of fixed FNBW (as in the case of uniform excitation). IWO is used to find the excitation amplitudes of a three ring CCAA that satisfy the desired goal better. Three design examples are provided. IWO is more robust and efficient algorithm than GA, PSO and Simulated Annealing etc.

References
  1. Kwai-Man Luk and Kai Fong Lee “Antennas in Wireless Communications” Proceedings of the IEEE , Vol. 100, No. 7, July 2012
  2. C. A. Ballanis, "Antenna theory analysis and design," 2nd edition, John Willey and Son's Inc. • New York, 1997.
  3. Mandal,D.; Chandra,A.; “Side Lobe Reduction of a Concentric Circular Antenna Array using Genetic Algorithm”, Serbian Journal of electrical engineering , vol.7, No.2, Nov. 2010, On pages 141-148.
  4. Thotakura T Ramakrishna Satish Raj and P Krishna Kanth Varma, “Real Coded GA (RCGA) for Control of Nulls and Sidelobes in a Concentric Circular Antenna Array (CCAA)” IJRECE Vol. 3 Issue 2 Apr-June 2015
  5. Shaya Karimkashi And Ahmed A. Kishk, “Invasive Weed Optimization And Its Features In Electromagnetics” IEEE Transactions On Antennas And Propagation, Vol. 58, No. 4, April 2010
  6. A. R. Mallahzadeh, “Application of The Invasive Weed Optimization Technique for Antenna Configurations”, Progress In Electromagnetics Research, PIER 79, 137–150, 2008
  7. R. L. Haupt, and D. H. Werner, “Genetic Algorithms in Electromagnetics”, IEEE Press Wiley-Interscience, 2007.
  8. Randy L. Haupt, Sue Ellen Haupt, “Practical Genetic Algorithms”, 2nd edition, Wiley- Interscience, John Wiley & Sons, INC., Publication.
Index Terms

Computer Science
Information Sciences

Keywords

Invasive Weed Optimization (IWO) algorithm Concentric Circular Antenna Array (CCAA) Nulls Sidelobe levels (SLL) First Null Beam Width (FNBW) Real Coded Genetic Algorithm (RCGA).

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