Accession Number : AD0257320

Title :   AN EXTENSION OF THE SPHERE TECHNIQUE FOR THE MEASUREMENT OF THREE-DIMENSIONAL RADIATION PATTERNS

Corporate Author : ELECTRO-MECHANICS CO AUSTIN TEX

Personal Author(s) : MORRIS,FRED J. ; TORMOLLAN,FRANCIS C.

Report Date : 10 DEC 1960

Pagination or Media Count : 1

Abstract : The results of work performed to extend the capability of the Three-Dimensional Radiation Pattern Measurement Techniques are summarized. The three-dimensional radiation pattern for an AN/TPS-1 radar is presented and time variations of received signal intensity is measured. Studies were made to show the effect of receiving antenna movement and a new concept of a solid pattern evolved. The effects of siting are stressed with respect to the interpretation of radiation measurements. Advances in the control of leakage signals are described and recommendations are given for further improvements. The frequency limitations are given only for the low end of the rf spectrum. The reasons for these limits are related to the size of the components for use below 1Kmc. An alternative method is described which has no low frequency limit but does have an upper frequency limit. Description of improved sphere construction materials and sphere suspension methods are given in the appendices. (Author)

Descriptors :   *ANTENNA RADIATION PATTERNS, *RADAR ANTENNAS, ANGLE OF ARRIVAL, ELECTROMAGNETIC RADIATION, MEASUREMENT, RADIOFREQUENCY, SEARCH RADAR, SPHERES

Distribution Statement : APPROVED FOR PUBLIC RELEASE