FRAUNHOFER PATTERN MEASUREMENT IN THE FRESNEL REGION
- 1 November 1957
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Physics
- Vol. 35 (11) , 1299-1308
- https://doi.org/10.1139/p57-142
Abstract
A method of Fraunhofer pattern measurement is presented by which the distance between antennas may be reduced from the usual 2L2/λ to values of the order of 0.1(L2/λ). This reduction may be applied to any antenna in which the aperture plane may be physically molded about a spherical surface having a radius of curvature less than 2L2/λ. It is shown that such measurements have less inherent phase error in the region of the main lobe than the conventional measurements on a plane aperture at 2L2/λ.Keywords
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