Accession Number : AD0779695

Title :   Hemispherically Scanned Arrays.

Descriptive Note : Scientific rept. no. 2,

Corporate Author : HUGHES AIRCRAFT CO CULVER CITY CALIF AEROSPACE GROUP

Personal Author(s) : Villeneuve,Alfred T. ; Behnke,Marvin C. ; Kummer,Wolfgang H.

Report Date : DEC 1973

Pagination or Media Count : 37

Abstract : The report contains analyses of the radiation characteristics of grounded dielectric slabs fed by slots in a groundplane. It also contains experimental patterns of such configurations. In Addition, measured patterns of slots with parasitic radiating elements, and of combinations of slots, surface wave structures and parasitic elements, are included. It is shown that significant improvement of radiation at the horizon can be obtained in the E-plane and that significant broadening of the pattern can be obtained in the H-plane. Patterns of a linear array of slots in a groundplane with curved extensions, electronically scanned in the E-plane show that significant improvement in radiation at endfire can be obtained using a surface wave structure. Recommendations for further study are included. (Author)

Descriptors :   *Antenna arrays, *Phased arrays, *Aircraft antennas, Airborne, Antennas, Antenna radiation patterns, Electronic scanners, Scanning, Dielectrics

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE