Accession Number:

AD0248590

Title:

RESEARCH ON LOW SILHOUETTE ENDFIRE ARRAYS

Descriptive Note:

Corporate Author:

GENERAL BRONZE CORP GARDEN CITY NY

Personal Author(s):

Report Date:

1960-06-01

Pagination or Media Count:

1.0

Abstract:

IN THE DESIGN OF ARRAYS OF END-FIRE ELEMENTS, THE CHARACTERISTICS OF THE INDIVIDUAL ELEMENT BOTH IN FREE SPACE AND IN THE ARRAY ARE OF IMPORTANCE IN DETERMINING THE ARRAY CONFIGURATION AND PERFORMANCE. THE FREE SPACE PERFORMANCE CHARACTERISTICS OF DISC-N-ROD ELEMENTS AND THE NATURE OF THE MUTUAL COUPLING AND GAIN AND PATTERN DEGRADATION OF ELEMENTS WHEN PLACED IN ARRAYS WAS STUDIED. USING THIS DATA, GENERAL DESIGN EQUATIONS FOR VARIOUS FAN AND PENCIL BEAM ARRAYS OF DISC-ON-ROD ENDFIRE ELEMENTS WERE DEVELOPED. EMPHASIS WAS PLACED ON THE DESIGN OF A SINGLE DISC-ON-ROD ELEMENT THAT WOULD ALLOW AN ARRAY OF SIX SUCH ELEMENTS LYING IN A COMMON PLANE TO MEET A SPECIFIC GAIN AND SIDE LOBE LOBE REQUIREMENT. AN ALTERNATE SOLUTION TO THISREQUIREMENT WAS ALSO REACHED BY REMOVING THE RESTRICTION THAT THE ELEMENTS ALL LIE IN ONE PLANE, AND THIS LATTER ARRANGEMENT RESULTED IN THE SMALLEST ARRAY SIZE TO MEET THE REQUIREMENT. THE EFFECTS OF LAUNCHER DESIGN AND LAUNCHER COUPLING UPON ARRAY PERFORMANCE, AND THE BANDWIDTH CHARACTERISTICS OF ELEMENTS AND ARRAYS, WERE ALSO INVESTIGATED. IT IS CONCLUDED THAT THE SPECIFIC GAIN AND SIDE LOBE REQUIREMENT CAN BE MET BY A SIX ELEMENT SINGLE PLANE ARRAY, AND FURTHER THAT ARRAYS OF END FIRE ELEMENTS SHOW CONSIDERABLE PROMISE IN ANTENNA DESIGN

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE