Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Patent
1986-06-27
1987-03-24
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
342372, H01Q 326
Patent
active
046528806
ABSTRACT:
An antenna feed network is described incorporating a plurality of power dividers and a plurality of power combiners to distribute at least two microwave signals over predetermined electrical path lengths to two overlapping subarrays of antenna elements forming an antenna aperture. The invention further provides a module incorporating a plurality of power dividers and power combiners utilizing Wilkenson strip-line power dividers and utilizing zero db branch arm hybrid couplers to provide wiring crossovers on the upper surface of a printed circuit board having a ground plane on its lower surface.
REFERENCES:
patent: 3518695 (1970-06-01), Schroeder
patent: 3803625 (1974-04-01), Nemit
patent: 4041501 (1977-08-01), Frazita et al.
patent: 4143379 (1979-03-01), Wheeler
patent: 4321605 (1982-03-01), Lopez
patent: 4414550 (1983-11-01), Tresselt
Moeller Alvin W.
Sinsky Allen I.
Willey Robert E.
Allied Corporation
Blum Theodore M.
Cain D.
Lamb Bruce L.
Trepp Robert M.
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