Title: Aircraft scanning antenna system with inter-element isolators

Abstract: An antenna system is provided having a common reflector and a plurality of spaced apart end-fired yagi type elements each comprising a driver and one or more directors. The elements are positioned longitudinally parallel to each other in separate planes. Adjustable parasitic reflecting rods are located adjacent to the elements so as to cause the generation of a low energy scattering field which, in turn, increases inter-element isolation.

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Inventors: Cermignani, Justine D. (Fort Salonga, NY, US)
Ganz, Frederick M. (Nesconset, NY, US)

Application Number: 911465
Filing Date: 1978-06-01
Publication_date: 1980-01-29
Assignee: Grumman Aerospace Corporation (Bethpage, NY)
Primary Class(es): 343/708 342/372, 343/817
Other Classes:
US Patent Ref:

2409944	Oct, 1946	Loughren	343/854.
2485138	Oct, 1949	Carter	343/819.
2558727	Jul, 1951	Bernet	343/817.
2629865	Feb, 1953	Barker	343/8.
3373434	Mar, 1968	Lorenzo et al.	343/815.
3541559	Nov, 1970	Evans	343/798.
3836977	Sep, 1974	Wheeler	343/815.
4131896	Dec, 1978	Miller	343/909.

Other Refs:
Primary Examiner: Lieberman, Eli
Assistant Examiner:
Attorney: Brunda; Bruce B., Geib; Richard G.