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A Gibbsian model for finite scanned arrays
- Source :
- IEEE Transactions on Antennas and Propagation. Feb, 1996, Vol. 44 Issue 2, p243, 6 p.
- Publication Year :
- 1996
-
Abstract
- A finite-by-infinite array of thin half-wave dipoles with H-plane scan is used to show the existence of a Gibbs' phenomenon-type standing wave in scan impedance (normalized by the infinite array value) over the elements of the array. The period of this wave is .5[Lambda] at broadside for [Lambda]/2 array spacing and increases as the scan angle increases by a grating lobe-type expression. A simple empirical model based on Gibbs oscillations is fitted to the scan-impedance wave; the model predicts the 1/(1 - sin[[Theta].sub.0]) period variation, and should be useful for systems trades and for preliminary design purposes.
Details
- ISSN :
- 0018926X
- Volume :
- 44
- Issue :
- 2
- Database :
- Gale General OneFile
- Journal :
- IEEE Transactions on Antennas and Propagation
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.18158362