Accession Number : AD0626693

Title :   OPTIMIZATION OF ANTENNA SYSTEMS.

Descriptive Note : Research rept.,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Schell,Allan C.

Report Date : SEP 1962

Pagination or Media Count : 20

Abstract : A theory for assessing errors in antenna systems and determining the optimum aperture distribution for an intended use is developed. A general error criterion is formulated, and the application of the calculus of variation and constraints intrinsic to antennas results in an integral equation that defines the conditions for the optimum antenna. The method of analysis and optimization derived from this equation is to radiative systems as the WienerHopf equation is to linear time domain systems and the Euler-Lagrange equation is to fields and forces. The theory applies directly to power pattern synthesis, yielding aperture distributions without a priori specification of the farfield phase. A powerful technique for the construction of very-large-aperture antennas is developed. This is the multiplate antenna technique, a method of aperture subdivision that provides flexible antenna performance with economy of cost. The optimization theory and the multiplate antenna technique together provide a means for achieving antennas of large size and high performance that are requisite to significant advances on a wide front of current scientific and military programs. (Author)

Descriptors :   (*ANTENNA ARRAYS, OPTIMIZATION), PERFORMANCE(ENGINEERING), ANTENNA APERTURES, FUNCTIONAL ANALYSIS, ANTENNA RADIATION PATTERNS, POWER, MEASUREMENT, THEORY

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE