Low frequency antenna analysis

An arbitrary VHF antenna array was considered for the comparison of two methods of analysis. The first method was based on a Fourier transform decomposition of the far-field radiation integral written in Matlab. In this approach the current on the antenna array is taken to be comprised of simplified...

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Bibliographic Details
Published inProceedings of the IEEE 2009 National Aerospace & Electronics Conference (NAECON) pp. 111 - 115
Main Authors Estep, N.A., Hurliman, M.L., Massman, J.P., Pugh, S.M., Rathi, R.K., Terzuoli, A.J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2009
Subjects
Antenna arrays
Computational electromagnetics
Computational modeling
Fourier transforms
Frequency
Mutual coupling
National electric code
Numerical simulation
Phased arrays
TV broadcasting
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Summary:An arbitrary VHF antenna array was considered for the comparison of two methods of analysis. The first method was based on a Fourier transform decomposition of the far-field radiation integral written in Matlab. In this approach the current on the antenna array is taken to be comprised of simplified functions. The current has three rectilinear components with each component been a product of three one dimensional rectilinear functions. The far-field is then obtained by a one dimensional Fourier transform of each of rectilinear function for each of the vector components. The array nature of the antenna is analyzed via a traditional summation approach and represented in closed form. The second method used was a traditional computational electromagnetic simulation using the Numerical Electromagnetic Code (NEC). The Fourier transform method ignores mutual coupling but is very computationally fast. The NEC method fully considers mutually coupling and is computationally much slower.
ISBN:9781424444946
1424444942
ISSN:0547-3578
2379-2027
DOI:10.1109/NAECON.2009.5426644