Bacteria foraging optimization in antenna engineering: An application to array fault finding

Choudhury, Balamati and Acharya, OP and Patnaik, A (2012) Bacteria foraging optimization in antenna engineering: An application to array fault finding. International Journal of RF and Microwave Computer-Aided Engineering, 23 (2). pp. 141-148.

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Finding fault elements in linear antenna arrays using bacteria foraging optimization (BFO) is presented. One of the better options of array diagnosis is to perform it by measuring the radiated field, because in this case, removal of the array from its working site is not required and thereby not interrupting its normal operation. This task of fault finding from far-field data is designed as an optimization problem where the difference between the far-field power pattern obtained for a given configuration of failed element(s) and the measured one is minimized w. r. t. the excitations of the array elements. This set of excitations on comparison with the excitations of the original array gives the idea of the fault position and their type, such as either complete fault or partial fault. BFO being relatively new to microwave community when compared with other soft-computing techniques, its performance was observed w. r. t. time of computation and convergence of the iterative process. Possibility of finding the faults from random sample points and use of minimum number of sample points for array fault finding are the novelties of the present work.

Item Type: Article
Additional Information: Copyright to this article belongs to M/s. Wiley Periodicals, Inc.,
Uncontrolled Keywords: Antenna array;Array fault finding;Bacteria foraging optimization
Subjects: ENGINEERING > Electronics and Electrical Engineering
MATHEMATICAL AND COMPUTER SCIENCES > Mathematical and Computer Scienes(General)
Depositing User: Ms. Alphones Mary
Date Deposited: 15 Jan 2014 04:06
Last Modified: 15 Jan 2014 04:06

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