Accession Number : ADD001788

Title :   Method and Apparatus for Determining Near-Field Antenna Patterns.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Hansen,Peder M ; Rockway,John W

Report Date : 22 Apr 1975

Pagination or Media Count : 6

Abstract : The patent describes a cost-effective and practical technique for obtaining far-field patterns of complex radiating or receiving structures such as ships, aircraft, or shore site antennas. Actual phase and amplitude measurements are obtained in the near-field and then they are processed in a digital computer using theoretical Z-matrix numerical techniques to calculate the far-field patterns by solving the matrix for the current distribution on the structure. By using near-field measurements, the method is significantly less expensive than either modeling or complete computer solutions, yet the results achieved are highly accurate.

Descriptors :   *Antenna radiation patterns, *Patents, Near field, Far field, Computations, Measurement

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE