Accession Number:

AD0405839

Title:

OPTIMUM APERTURE STUDY

Descriptive Note:

Suppl. to quarterly rept. no. 3

Corporate Author:

MARTIN CO BALTIMORE MD

Personal Author(s):

Report Date:

1963-05-01

Pagination or Media Count:

49.0

Abstract:

The applicability is studied of the Wiener Spencer Theorem to antennas. This theorem states that minimum standard deviation of the far-field pattern occurs when the illumination function corresponds to the lowest mode of vibration of a membrane stretched across the aperture opening. The investigation of four selected nonoptimum illuminations for the elliptical aperatures is presented. Approximations are used to obtain expressions for far-field power patterns, and second moments are tabulated. In addition, illuminations and far-field power patterns are plotted.

Subject Categories:

  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE