Accession Number : AD0819079

Title :   MODELING AND MEASUREMENT TECHNIQUES FOR LARGE SPHERICAL ARRAYS.

Descriptive Note : Final rept. 23 Mar 66-23 Mar 67,

Corporate Author : PHILCO-FORD CORP NEWPORT BEACH CA AERONUTRONIC DIV

Personal Author(s) : Twist, Gerald A. ; Brown, Lewis J.

Report Date : JUL 1967

Pagination or Media Count : 106

Abstract : This is the final technical report on Modeling and Measurement Techniques for Large Spherical Arrays. The objective of the program was to develop a reliable economical method for the verification of the design concepts and analytical predictions of the radiation performance of large spherical arrays prior to full-sized antenna fabrication. The objective was to be accomplished through a program of analyses and experimentation which accomplished the following: (1) Establishment, through test and evaluation, of the array element simulator. (2) Detailed design of a spherical model having an aperture of 100 lambda. (3) Establishment of a simple feed system for the spherical model array. (4) Verification of the modeling techniques through experimentation with the spherical model containing a small number of element simulators. A frequency scaled linear array of 145 elements simulators located uniformly along a 120 degree arc of a great circle on a spherical surface was constructed and evaluated.

Descriptors :   (*ANTENNA ARRAYS, SPHERES), MEASUREMENT, ANTENNA FEEDS, ATTENUATORS, PHASE SHIFT CIRCUITS, PHASE SHIFT CIRCUITS, ANTENNA APERTURES, SIMULATION, SIMULATORS.

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE