Hemispherically Scanned Arrays.
Scientific rept. no. 2,
HUGHES AIRCRAFT CO CULVER CITY CALIF AEROSPACE GROUP
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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
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