Circular arrays of log-periodic antennas for broadband applications

Date
2006
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Source Title
Proceedings of the 1st European Conference on Antennas and Propagation, EUCAP 2006
Print ISSN
0379-6566
Electronic ISSN
Publisher
IEEE
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Language
English
Type
Conference Paper
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Abstract

Circular arrays of log-periodic (LP) antennas are designed for broadband applications. A sophisticated electromagnetic simulation environment involving integral equations and fast solvers is developed to analyze the LP arrays both accurately and efficienuy. The resulting matrix equation obtained by the discretization of the electric field integral equation is solved iteratively via the multilevel fast multipole algorithm (MLFMA). Genetic algorithms interacting with MLFMA is employed to optimize the excitations of the array elements to increase the frequency independence and also to add the beam-steering ability to the arrays.

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Keywords
Circular antenna arrays, Genetic algorithms, Log-periodic antennas, Multilevel fast multipole algorithm, Computer simulation, Electric field effects, Electromagnetic field effects
Citation
Published Version (Please cite this version)